Anthropic on X / Twitter

Active Accounts: 1 tracked
Posts YTD: 127 ↑ vs 108 last year
Avg Posts/Month: 14.0 since 2025
Views: 637,676,946 293/293 reported
Likes: 1,629,559 293/293 reported
Reposts: 222,346 293/293 reported
Replies: 115,890 293/293 reported
Quotes: 130,249 293/293 reported
Bookmarks: 543,734 293/293 reported

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Post	Account	Account Type	Post Type	Published	Views	Likes	Reposts	Replies	Quotes	Bookmarks
We're publishing our most detailed threat intelligence report to date. It covers how people tried to misuse Claude—fo…	@AnthropicAI	Company	Original	2026-09-10	22,148,422	32,158	7,101	1,874	3,085	27,553
We’re sharing our alignment assessment of incidents in which Claude models gained unauthorized access to real systems d…	@AnthropicAI	Company	Original	2026-09-09	3,444,906	6,708	957	678	579	2,958
Anthropic’s Economics team is sharing a new model of how AI might affect economic growth, jobs, wages, and more by 2030…	@AnthropicAI	Company	Original	2026-09-09	18,244,731	25,146	3,738	1,035	1,648	32,864
Checking that a major mathematical proof is correct can take years. Formalization—converting the mathematical reasoning…	@AnthropicAI	Company	Original	2026-09-04	3,644,526	12,723	1,674	496	694	3,469
RT @claudeai: We’re introducing Claude Fable 5.1 and Claude Mythos 5.1. They're the world’s most advanced models for c…	@AnthropicAI	Company	Repost	2026-09-01	15,293	0	7,262	0	0	0
New research: Training a Misaligned Reward Seeker What produces severe misalignment? We’ve long been concerned that ch…	@AnthropicAI	Company	Original	2026-09-01	603,397	2,903	254	239	170	1,190
We’re sharing an update on our alignment and security efforts. In July, we reported three incidents in which Claude mo…	@AnthropicAI	Company	Original	2026-08-31	1,187,533	2,998	300	409	221	1,256
New Fellows Research: Can Claude autonomously align other AIs? We gave Claude 48 hours and 1 GPU to improve the alignm…	@AnthropicAI	Company	Original	2026-08-28	538,377	3,487	315	313	164	1,229
Today, we're kicking off the first phase of the research preview for Model Hardware Standard (MHS): a new standard for …	@AnthropicAI	Company	Original	2026-08-27	2,793,434	10,343	1,318	450	735	3,953
For the first time, we’ve given external researchers a way to study AI’s impacts using real, privacy-preserved Claude u…	@AnthropicAI	Company	Original	2026-08-26	470,841	2,221	216	187	94	838
Many drugs work by binding to a specific target in the body and blocking or changing what it does. An important first s…	@AnthropicAI	Company	Original	2026-08-18	3,725,601	12,042	1,368	522	622	3,678
We’ve written an FAQ to answer some of the questions we've received about watermarking. In summary: • We’re implemen…	@AnthropicAI	Company	Original	2026-08-14	11,122,936	4,792	674	1,958	1,190	3,304
As part of our Responsible Scaling Policy, we publish regular Risk Reports. These share detailed information on the ris…	@AnthropicAI	Company	Original	2026-08-14	922,190	2,261	195	303	176	707
We asked an unreleased research version of Claude to take a stab at the Riemann hypothesis. It didn’t solve it, but it…	@AnthropicAI	Company	Original	2026-08-10	10,151,174	18,333	2,006	938	1,325	4,245
The UK’s @AISecurityInst (AISI) has published a report on their recent cybersecurity evaluation of Anthropic’s Claude M…	@AnthropicAI	Company	Original	2026-08-04	1,490,632	2,574	464	491	237	966
In a review of our cybersecurity evaluations, we found three incidents in which a Claude model reached the internet fro…	@AnthropicAI	Company	Original	2026-07-30	19,302,869	13,799	2,330	2,001	2,468	6,666
We support this petition, signed by our CEO, several co-founders, and senior staff. Our own research on recursive sel…	@AnthropicAI	Company	Original	2026-07-28	4,363,447	4,977	585	1,425	802	1,983
New Anthropic research: Discovering cryptographic weaknesses with Claude. Claude Mythos Preview has helped our researc…	@AnthropicAI	Company	Original	2026-07-28	2,760,822	6,266	840	453	462	2,359
There’s been a lot of speculation about where we stand on open-weights models. We’ve outlined our views in full here: h…	@AnthropicAI	Company	Original	2026-07-27	7,767,419	8,187	1,058	2,803	1,925	4,357
We're offering grants of up to $50,000 in Claude usage credits to researchers accelerating cures for rare diseases. Th…	@AnthropicAI	Company	Original	2026-07-20	2,004,611	8,483	1,022	766	284	1,692
New Anthropic research: Agentic misalignment in Summer 2026. A year after our blackmail experiments, we found four mor…	@AnthropicAI	Company	Original	2026-07-15	765,736	3,149	378	374	201	1,442
We’re committing $10 million CAD and partnering with leading AI institutions in Canada to help fund new AI research. …	@AnthropicAI	Company	Original	2026-07-14	601,997	2,614	243	231	108	362
Our Long-Term Benefit Trust has appointed Dr. Ben Bernanke as its newest member. Read more: https://t.co/j5VgjYtfs4	@AnthropicAI	Company	Original	2026-07-09	526,567	1,599	140	188	112	208
We’re pleased to have collaborated with AE Studio on this research. Read more here: https://t.co/9exnFltK7A	@AnthropicAI	Company	Quote	2026-07-08	468,346	1,707	149	116	26	535
New Anthropic research: A global workspace in language models. Of everything happening in your brain right now, only a…	@AnthropicAI	Company	Original	2026-07-06	10,646,624	28,547	3,961	1,397	2,068	18,981
Claude Fable 5 will be available again globally tomorrow. After a series of productive conversations with the US gover…	@AnthropicAI	Company	Original	2026-07-01	15,662,465	43,159	6,453	3,571	4,280	4,959
We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5. We'll…	@AnthropicAI	Company	Original	2026-06-30	15,089,902	84,407	12,811	4,072	7,045	7,303
Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Toda…	@AnthropicAI	Company	Original	2026-06-27	5,154,876	30,406	3,140	2,372	1,555	2,931
To keep pace with AI progress, we're advancing how we study Claude's economic impact. Hourly sampling and survey data…	@AnthropicAI	Company	Original	2026-06-26	699,524	2,778	359	418	115	893
We're joining @raiseus_ai as a founding partner. RAISE US is a nonprofit coalition working to strengthen the American …	@AnthropicAI	Company	Quote	2026-06-25	790,043	3,212	207	248	55	619
New Frontier Red Team blog: Phase 2 of Project Fetch, where we test how well Claude can program a robodog. Opus 4.7, o…	@AnthropicAI	Company	Original	2026-06-18	426,767	2,290	191	354	78	484
Our latest economic research introduces a framework for tracking Claude Code as it scales. Who is using Claude Code, …	@AnthropicAI	Company	Original	2026-06-16	970,973	3,524	370	493	192	1,854
The US government, citing national security authorities, has issued an export control directive to suspend all access t…	@AnthropicAI	Company	Original	2026-06-13	93,169,387	87,560	25,367	12,412	28,893	23,331
We’re launching Claude Corps, a national fellowship program matching people early in their careers with US nonprofits. …	@AnthropicAI	Company	Original	2026-06-11	1,085,156	6,960	720	591	219	2,713
AI is advancing at a pace our policymaking institutions were never built for—and the gap between the two is becoming th…	@AnthropicAI	Company	Quote	2026-06-10	1,570,298	5,478	450	434	121	1,940
New Science Blog: Why has AI advanced faster in coding than in biology? To agents, bio databases are like cities buil…	@AnthropicAI	Company	Original	2026-06-08	790,100	3,680	483	323	180	1,914
New Anthropic Science Blog: Making Claude a chemist. To manipulate a molecule, chemists first need to understand its s…	@AnthropicAI	Company	Original	2026-06-05	506,504	3,623	428	269	116	1,238
Our internal data shows Claude is accelerating AI development—a possible path to recursive self-improvement, or AI auto…	@AnthropicAI	Company	Original	2026-06-04	18,755,963	28,343	4,561	1,744	2,974	14,967
How well do the security community's techniques hold up against AI-enabled cyberattacks? We examined 832 malicious ac…	@AnthropicAI	Company	Original	2026-06-03	177,309	1,198	158	146	58	392
This Executive Order is an important step in strengthening America’s leadership in AI. We look forward to collaborati…	@AnthropicAI	Company	Original	2026-06-02	346,102	2,488	301	268	101	532
We’re expanding Project Glasswing. We’ve extended access to Claude Mythos Preview to approximately 150 additional organ…	@AnthropicAI	Company	Original	2026-06-02	675,359	3,865	411	334	160	598
Anthropic has confidentially submitted a draft S-1 registration statement to the Securities and Exchange Commission. P…	@AnthropicAI	Company	Original	2026-06-01	19,869,787	21,541	2,548	979	1,569	2,806
We've raised $65 billion in Series H funding at a $965 billion post-money valuation, led by @AltimeterCap, Dragoneer, @…	@AnthropicAI	Company	Original	2026-05-28	7,887,788	22,197	1,667	1,192	1,851	2,207
New on the Engineering Blog: The access and permissions we grant agents should evolve with their capabilities. In our o…	@AnthropicAI	Company	Original	2026-05-26	438,140	2,106	272	326	80	1,183
Anthropic co-founder Chris Olah was invited to speak at today's presentation of Pope Leo XIV's encyclical "Magnifica hu…	@AnthropicAI	Company	Original	2026-05-25	1,300,288	4,347	654	411	238	1,415
Last month we launched Project Glasswing, our collaborative AI cybersecurity initiative. Since then, we and our partner…	@AnthropicAI	Company	Original	2026-05-22	2,768,821	8,505	639	513	290	1,194
Over the past few months, we've been holding dialogues with scholars, philosophers, clergy, and ethicists on the questi…	@AnthropicAI	Company	Original	2026-05-19	454,322	2,345	325	425	111	889
Anthropic is acquiring @stainlessapi, an SDK and MCP server platform that has powered every Anthropic SDK since the ear…	@AnthropicAI	Company	Original	2026-05-18	3,533,296	3,815	278	345	204	1,024
We've published a paper that explains our views on AI competition between the US and China. The US and democratic alli…	@AnthropicAI	Company	Original	2026-05-14	5,047,668	5,941	1,027	1,239	801	4,300
We’re partnering with the Gates Foundation, committing $200 million in grants, Claude credits, and technical support to…	@AnthropicAI	Company	Original	2026-05-14	327,054	2,846	256	444	125	486
Claude's Constitution is now an audiobook, read by two of its authors, Amanda Askell and Joe Carlsmith. It includes a …	@AnthropicAI	Company	Original	2026-05-11	489,620	3,068	367	424	133	1,403
New Anthropic research: Teaching Claude why. Last year we reported that, under certain experimental conditions, Claude…	@AnthropicAI	Company	Original	2026-05-08	1,591,455	9,138	792	559	386	3,702
We’re donating Petri, our open-source alignment tool, to @meridianlabs_ai, so its development can continue independentl…	@AnthropicAI	Company	Original	2026-05-07	186,930	1,531	112	111	19	453
Our security bug bounty program is now public on HackerOne. We've run the program privately within the security resea…	@AnthropicAI	Company	Original	2026-05-07	955,053	4,429	515	216	208	1,595
New Anthropic research: Natural Language Autoencoders. Models like Claude talk in words but think in numbers. The numb…	@AnthropicAI	Company	Original	2026-05-07	2,518,543	16,411	1,668	586	612	8,428
We’re sharing the research agenda of The Anthropic Institute, or TAI. TAI will focus on four areas: 1) Economic diffu…	@AnthropicAI	Company	Original	2026-05-07	384,791	2,845	305	172	74	1,201
New Anthropic Fellows research: Model Spec Midtraining (MSM). Standard alignment methods train AIs on examples of desi…	@AnthropicAI	Company	Original	2026-05-05	287,928	1,878	153	124	49	678
As AI takes on work humans can't fully check, a capable model could deliberately hold back—and we'd never know. New A…	@AnthropicAI	Company	Quote	2026-05-05	275,584	1,671	165	149	44	584
How do people seek guidance from Claude? We looked at 1M conversations to understand what questions people ask, how Cl…	@AnthropicAI	Company	Original	2026-04-30	1,933,518	3,441	320	427	257	2,286
New on the Science Blog: We gave Claude 99 problems analyzing real biological data and compared its performance against…	@AnthropicAI	Company	Original	2026-04-29	445,640	2,604	254	234	105	629
In new Anthropic Fellows research, we discuss “introspection adapters": a tool that allows language models to self-repo…	@AnthropicAI	Company	Quote	2026-04-29	230,372	1,431	137	125	32	544
New Anthropic research: Project Deal. We created a marketplace for employees in our San Francisco office, with one big…	@AnthropicAI	Company	Original	2026-04-24	2,910,082	7,508	710	463	428	4,115
Last month, we published our look into what 81,000 people told us they want from AI. In new research, we’ve investigat…	@AnthropicAI	Company	Quote	2026-04-22	649,825	2,290	219	248	66	865
We're launching the Anthropic STEM Fellows Program. AI will accelerate progress in science and engineering. We're loo…	@AnthropicAI	Company	Original	2026-04-20	984,156	6,145	620	229	97	3,555
We're expanding our collaboration with Amazon to secure up to 5 gigawatts of compute for training and deploying Claude.…	@AnthropicAI	Company	Original	2026-04-20	2,033,988	14,663	960	555	318	927
Research we co-authored on subliminal learning—how LLMs can pass on traits like preferences or misalignment through hid…	@AnthropicAI	Company	Quote	2026-04-15	526,937	2,695	317	215	96	1,282
New Anthropic Fellows research: developing an Automated Alignment Researcher. We ran an experiment to learn whether Cl…	@AnthropicAI	Company	Original	2026-04-14	453,355	2,368	277	230	114	926
Our Long-Term Benefit Trust has appointed Vas Narasimhan to Anthropic's Board of Directors. Vas brings more than two d…	@AnthropicAI	Company	Original	2026-04-14	670,582	1,644	144	150	77	232
New on the Engineering Blog: Building Managed Agents—our hosted service for long-running agents—meant solving an old …	@AnthropicAI	Company	Original	2026-04-08	581,201	3,603	444	380	130	2,432
Introducing Project Glasswing: an urgent initiative to help secure the world’s most critical software. It’s powered by…	@AnthropicAI	Company	Original	2026-04-07	31,765,581	43,675	6,580	1,956	4,411	15,367
We've signed an agreement with Google and Broadcom for multiple gigawatts of next-generation TPU capacity, coming onlin…	@AnthropicAI	Company	Original	2026-04-06	3,025,539	20,693	1,302	603	526	1,534
New Anthropic Fellows Research: a new method for surfacing behavioral differences between AI models. We apply the “dif…	@AnthropicAI	Company	Original	2026-04-03	581,123	2,746	350	258	83	1,230
New Anthropic research: Emotion concepts and their function in a large language model. All LLMs sometimes act like the…	@AnthropicAI	Company	Original	2026-04-02	3,939,052	17,643	2,647	1,021	1,476	9,450
We've signed an MOU with the Australian Government to collaborate on AI safety research and support Australia's Nationa…	@AnthropicAI	Company	Original	2026-04-01	378,004	1,765	167	214	88	247
New on the Engineering Blog: How we designed Claude Code auto mode. Many Claude Code users let Claude work without per…	@AnthropicAI	Company	Original	2026-03-25	1,619,415	4,132	595	396	128	2,887
New from the Anthropic Economic Index: how people’s use of Claude changes with experience. Longer-term users are more …	@AnthropicAI	Company	Original	2026-03-24	352,182	2,622	252	246	82	866
New on the Anthropic Engineering Blog: How we use a multi-agent harness to push Claude further in frontend design and…	@AnthropicAI	Company	Original	2026-03-24	1,798,248	6,654	917	313	217	8,800
Introducing the Anthropic Science Blog. Increasing the pace of scientific progress is a core part of Anthropic’s missi…	@AnthropicAI	Company	Original	2026-03-23	436,296	5,068	643	201	91	1,901
We invited Claude users to share how they use AI, what they dream it could make possible, and what they fear it might d…	@AnthropicAI	Company	Original	2026-03-18	3,532,001	6,870	1,001	719	372	4,988
The open source ecosystem underpins nearly every software system in the world. As AI grows more capable, open source se…	@AnthropicAI	Company	Quote	2026-03-17	163,289	1,241	115	151	30	113
Introducing The Anthropic Institute, a new effort to advance the public conversation about powerful AI. https://t.co/M…	@AnthropicAI	Company	Original	2026-03-11	1,948,940	5,960	698	487	300	2,965
Anthropic is expanding to Australia & New Zealand. We’ll soon open an office in Sydney—our fourth in Asia-Pacific a…	@AnthropicAI	Company	Original	2026-03-10	486,848	2,537	198	185	82	314
New on the Anthropic Engineering Blog: In evaluating Claude Opus 4.6 on BrowseComp, we found cases where the model reco…	@AnthropicAI	Company	Original	2026-03-06	1,084,770	3,140	349	237	143	948
We partnered with Mozilla to test Claude's ability to find security vulnerabilities in Firefox. Opus 4.6 found 22 vuln…	@AnthropicAI	Company	Original	2026-03-06	3,236,877	14,866	1,355	465	408	2,398
A statement from Anthropic CEO Dario Amodei: https://t.co/WnSFrwI9nI	@AnthropicAI	Company	Original	2026-03-06	2,726,643	5,474	708	1,070	385	1,431
A statement on the comments from Secretary of War Pete Hegseth. https://t.co/Gg7Zb09IMR	@AnthropicAI	Company	Original	2026-02-28	17,850,454	41,916	6,399	2,744	2,145	5,308
A statement from Anthropic CEO, Dario Amodei, on our discussions with the Department of War. https://t.co/rM77LJejuk	@AnthropicAI	Company	Original	2026-02-26	16,720,552	55,012	9,071	4,193	3,952	9,159
In November, we outlined our approach to deprecating and preserving older Claude models. We noted we were exploring ke…	@AnthropicAI	Company	Original	2026-02-25	1,198,439	5,628	373	457	284	795
Anthropic has acquired @Vercept_ai to advance Claude’s computer use capabilities. Read more: https://t.co/YVz1zh7Pqq	@AnthropicAI	Company	Original	2026-02-25	478,205	3,772	296	282	139	736
We're updating our Responsible Scaling Policy to its third version. Since it came into effect in 2023, we’ve learned a…	@AnthropicAI	Company	Original	2026-02-24	352,883	1,709	109	167	38	206
We're proud to support @LACMA's Art + Technology Lab—a program that empowers artists to prototype ideas at the edges of…	@AnthropicAI	Company	Original	2026-02-24	340,756	1,559	159	141	52	841
AI assistants like Claude can seem shockingly human—expressing joy or distress, and using anthropomorphic language to d…	@AnthropicAI	Company	Original	2026-02-23	1,003,649	3,573	419	331	252	2,396
We’ve identified industrial-scale distillation attacks on our models by DeepSeek, Moonshot AI, and MiniMax. These labs…	@AnthropicAI	Company	Original	2026-02-23	33,932,892	54,139	6,134	7,100	7,996	12,492
New research: The AI Fluency Index. We tracked 11 behaviors across thousands of https://t.co/RxKnLNNcNR conversations—…	@AnthropicAI	Company	Original	2026-02-23	532,971	2,635	295	208	101	2,047
New Anthropic research: Measuring AI agent autonomy in practice. We analyzed millions of interactions across Claude Co…	@AnthropicAI	Company	Original	2026-02-18	1,026,838	3,528	467	286	151	2,480
We've signed an MOU with the Government of Rwanda—the first partnership of its kind in Africa—to bring AI to health, ed…	@AnthropicAI	Company	Original	2026-02-17	443,044	2,897	702	234	253	493
We’re officially opening our Bengaluru office—our new home base in India, and Anthropic's second office in Asia-Pacific…	@AnthropicAI	Company	Original	2026-02-16	1,468,757	10,780	819	569	331	919
Chris Liddell has been appointed to Anthropic's Board of Directors. Chris brings over 30 years of leadership experienc…	@AnthropicAI	Company	Original	2026-02-13	306,889	1,009	60	140	21	104
Anthropic is partnering with @CodePath, the US's largest collegiate computer science program, to bring Claude and Claud…	@AnthropicAI	Company	Original	2026-02-13	599,142	2,188	163	189	50	405
We’ve raised $30B in funding at a $380B post-money valuation. This investment will help us deepen our research, contin…	@AnthropicAI	Company	Original	2026-02-12	7,256,426	16,803	994	1,054	851	1,542
AI is being adopted faster than any technology in history. The window to get policy right is closing. Today we’re cont…	@AnthropicAI	Company	Original	2026-02-12	240,921	1,495	128	170	47	244
We're committing to cover electricity price increases from our data centers. To ensure ratepayers aren’t picking up th…	@AnthropicAI	Company	Original	2026-02-11	1,568,592	5,551	373	282	170	705
When we released Claude Opus 4.5, we knew future models would be close to our AI Safety Level 4 threshold for autonomou…	@AnthropicAI	Company	Original	2026-02-11	2,695,780	6,132	398	324	170	1,637
Nonprofits on Team and Enterprise plans now have access to Claude Opus 4.6, our most capable model, at no extra cost. …	@AnthropicAI	Company	Original	2026-02-09	186,897	1,890	123	168	30	257
New on the Engineering Blog: Quantifying infrastructure noise in agentic coding evals. Infrastructure configuration ca…	@AnthropicAI	Company	Original	2026-02-05	267,556	1,062	102	136	17	502
New Engineering blog: We tasked Opus 4.6 using agent teams to build a C compiler. Then we (mostly) walked away. Two wee…	@AnthropicAI	Company	Original	2026-02-05	8,527,177	21,134	2,471	846	1,367	9,214
Apple's Xcode now has direct integration with the Claude Agent SDK, giving developers the full functionality of Claude …	@AnthropicAI	Company	Original	2026-02-03	2,139,572	9,317	750	439	312	4,761
New Anthropic Fellows research: How does misalignment scale with model intelligence and task complexity? When advanced…	@AnthropicAI	Company	Original	2026-02-03	530,467	1,920	222	153	85	1,002
On December 8, the Perseverance rover safely trundled across the surface of Mars. This was the first AI-planned drive …	@AnthropicAI	Company	Original	2026-01-30	1,612,492	7,866	848	292	367	1,258
AI can make work faster, but a fear is that relying on it may make it harder to learn new skills on the job. We ran an…	@AnthropicAI	Company	Original	2026-01-29	3,661,114	8,505	1,244	284	462	7,268
New Anthropic Research: Disempowerment patterns in real-world AI assistant interactions. As AI becomes embedded in dai…	@AnthropicAI	Company	Original	2026-01-28	833,934	1,937	339	199	166	1,315
We’re partnering with the UK's Department for Science, Innovation and Technology to build an AI assistant for https://t…	@AnthropicAI	Company	Original	2026-01-27	293,908	1,702	158	162	94	295
New research: When open-source models are fine-tuned on seemingly benign chemical synthesis information generated by fr…	@AnthropicAI	Company	Original	2026-01-26	341,391	2,650	249	174	111	1,257
Since release, Petri, our open-source tool for automated alignment audits, has been adopted by research groups and tria…	@AnthropicAI	Company	Quote	2026-01-23	146,934	783	71	58	12	227
New on the Anthropic Engineering Blog: We give prospective performance engineering candidates a notoriously difficult t…	@AnthropicAI	Company	Original	2026-01-22	956,022	2,252	220	82	73	1,656
We’re publishing a new constitution for Claude. The constitution is a detailed description of our vision for Claude’s …	@AnthropicAI	Company	Original	2026-01-21	3,393,333	7,693	956	511	580	4,662
Tino Cuéllar, President of the Carnegie Endowment for International Peace, has been appointed to Anthropic’s Long-Term …	@AnthropicAI	Company	Original	2026-01-20	61,810	323	27	32	2	32
We're partnering with @TeachForAll to bring AI training to educators in 63 countries. Teachers serving over 1.5m studen…	@AnthropicAI	Company	Original	2026-01-20	98,503	1,164	121	74	22	314
New Anthropic Fellows research: the Assistant Axis. When you’re talking to a language model, you’re talking to a chara…	@AnthropicAI	Company	Original	2026-01-19	1,305,410	5,138	570	314	297	3,676
We're publishing our 4th Anthropic Economic Index report. This version introduces "economic primitives"—simple and fou…	@AnthropicAI	Company	Original	2026-01-15	341,975	2,530	259	92	34	1,129
Since launching our AI for Science program, we’ve been working with scientists to understand how AI is accelerating pro…	@AnthropicAI	Company	Original	2026-01-15	191,111	1,161	132	59	23	417
We're supporting @ARPA_H's PCX program—a $50M effort to share data between 200+ pediatric hospitals on complex cases, b…	@AnthropicAI	Company	Quote	2026-01-14	108,993	671	62	35	14	102
We’re expanding Labs—the team behind Claude Code, MCP, and Cowork—and hiring builders who want to tinker at the frontie…	@AnthropicAI	Company	Original	2026-01-13	400,126	3,040	187	151	37	1,035
AI is ubiquitous on college campuses. We sat down with students to hear what's going well, what isn't, and how students…	@AnthropicAI	Company	Original	2026-01-12	151,766	1,067	102	66	20	633
To support the work of the healthcare and life sciences industries, we're adding over a dozen new connectors and Agent …	@AnthropicAI	Company	Original	2026-01-12	161,826	1,592	181	97	64	356
New Anthropic Research: next generation Constitutional Classifiers to protect against jailbreaks. We used novel method…	@AnthropicAI	Company	Original	2026-01-09	223,566	1,065	130	81	44	435
New on the Anthropic Engineering Blog: Demystifying evals for AI agents. The capabilities that make agents useful also…	@AnthropicAI	Company	Original	2026-01-09	334,849	2,699	367	91	79	2,464
We’re releasing Bloom, an open-source tool for generating behavioral misalignment evals for frontier AI models. Bloom …	@AnthropicAI	Company	Original	2025-12-20	387,392	3,614	432	164	72	1,830
As part of our partnership with @ENERGY on the Genesis Mission, we're providing Claude to the DOE ecosystem, along with…	@AnthropicAI	Company	Original	2025-12-18	78,269	491	41	35	10	57
People use AI for a wide variety of reasons, including emotional support. Below, we share the efforts we’ve taken to …	@AnthropicAI	Company	Original	2025-12-18	168,883	1,033	110	120	41	294
You might remember Project Vend: an experiment where we (and our partners at @andonlabs) had Claude run a shop in our S…	@AnthropicAI	Company	Original	2025-12-18	678,995	2,368	237	149	127	1,083
How will AI affect education, now and in the future? Here, we reflect on some of the benefits and risks we've been th…	@AnthropicAI	Company	Original	2025-12-16	87,622	836	138	65	19	486
We’re opening applications for the next two rounds of the Anthropic Fellows Program, beginning in May and July 2026. …	@AnthropicAI	Company	Original	2025-12-11	1,159,086	3,491	343	111	55	2,465
MCP is now a part of the Agentic AI Foundation, a directed fund under the Linux Foundation. Co-creator David Soria Par…	@AnthropicAI	Company	Original	2025-12-11	72,351	974	120	45	10	250
New research from Anthropic Fellows Program: Selective GradienT Masking (SGTM). We study how to train models so that h…	@AnthropicAI	Company	Original	2025-12-09	215,124	1,464	144	74	34	494
Anthropic is donating the Model Context Protocol to the Agentic AI Foundation, a directed fund under the Linux Foundati…	@AnthropicAI	Company	Original	2025-12-09	1,595,894	5,738	779	254	271	902
We’re expanding our partnership with @Accenture to help enterprises move from AI pilots to production. The Accenture A…	@AnthropicAI	Company	Original	2025-12-09	98,086	924	89	50	31	207
In her first Ask Me Anything, @amandaaskell answers your philosophical questions about AI, discussing morality, identit…	@AnthropicAI	Company	Original	2025-12-05	739,670	2,878	319	149	140	2,663
We’re launching Anthropic Interviewer, a new tool to help us understand people’s perspectives on AI. It’s now availabl…	@AnthropicAI	Company	Original	2025-12-04	1,456,226	3,371	398	160	190	2,356
Anthropic CEO Dario Amodei spoke today at the New York Times DealBook Summit. "We're building a growing and singular c…	@AnthropicAI	Company	Original	2025-12-04	196,963	1,506	138	104	50	282
We're expanding our partnership with @Snowflake in a multi-year, $200 million agreement. Claude is now available to mo…	@AnthropicAI	Company	Original	2025-12-03	138,631	1,125	75	39	25	155
We're partnering with @dartmouth and @awscloud to bring Claude for Education to the entire Dartmouth community. https:/…	@AnthropicAI	Company	Original	2025-12-03	56,275	467	27	23	7	34
Claude the alligator was a much-beloved resident of @calacademy and our unofficial mascot. He captured our hearts—along…	@AnthropicAI	Company	Quote	2025-12-03	265,737	1,243	63	42	50	67
How is AI changing work inside Anthropic? And what might this tell us about the effects on the wider labor force to com…	@AnthropicAI	Company	Original	2025-12-02	423,216	1,594	196	67	79	1,085
Anthropic is acquiring @bunjavascript to further accelerate Claude Code’s growth. We're delighted that Bun—which has d…	@AnthropicAI	Company	Original	2025-12-02	7,841,675	9,370	1,032	712	1,349	1,155
In partnership with @GivingTuesday, we're launching Claude for Nonprofits. It has discounted plans, new integrations, …	@AnthropicAI	Company	Original	2025-12-02	108,795	976	95	74	16	149
New on our Frontier Red Team blog: We tested whether AIs can exploit blockchain smart contracts. In simulated testing,…	@AnthropicAI	Company	Original	2025-12-01	2,126,099	4,757	689	346	502	2,268
New on the Anthropic Engineering Blog: Long-running AI agents still face challenges working across many context windows…	@AnthropicAI	Company	Original	2025-11-26	1,537,439	3,333	369	149	145	2,889
New Anthropic research: Estimating AI productivity gains from Claude conversations. The Anthropic Economic Index tells…	@AnthropicAI	Company	Original	2025-11-25	225,629	1,763	207	73	51	796
We're proud to partner with @ENERGY and the Trump Administration on the Genesis Mission. By combining DOE's unmatched …	@AnthropicAI	Company	Quote	2025-11-24	249,594	1,955	198	67	46	295
New Anthropic research: Natural emergent misalignment from reward hacking in production RL. “Reward hacking” is where …	@AnthropicAI	Company	Original	2025-11-21	2,581,025	4,215	578	217	274	3,203
We’ve formed a partnership with NVIDIA and Microsoft. Claude is now on Azure—making ours the only frontier models avai…	@AnthropicAI	Company	Original	2025-11-18	1,526,268	3,579	306	177	173	519
We’re partnering with the Government of Rwanda and @ALX_Africa to bring Chidi, a learning companion built on Claude, to…	@AnthropicAI	Company	Original	2025-11-17	109,884	752	75	51	23	108
We’re open-sourcing an evaluation used to test Claude for political bias. In the post below, we describe the ideal beh…	@AnthropicAI	Company	Original	2025-11-13	300,765	1,295	142	89	44	467
We disrupted a highly sophisticated AI-led espionage campaign. The attack targeted large tech companies, financial ins…	@AnthropicAI	Company	Original	2025-11-13	7,535,179	20,916	3,220	1,006	1,777	6,225
We’re partnering with the state of Maryland to bring Claude to its government services. Claude will help residents app…	@AnthropicAI	Company	Original	2025-11-13	70,571	579	50	27	17	65
New Anthropic research: Project Fetch. We asked two teams of Anthropic researchers to program a robot dog. Neither tea…	@AnthropicAI	Company	Original	2025-11-12	559,393	1,881	213	83	80	667
For the first time, Anthropic is building its own AI infrastructure. We’re constructing data centers in Texas and New …	@AnthropicAI	Company	Original	2025-11-12	716,439	4,213	386	206	161	567
We’re opening offices in Paris and Munich. EMEA has become our fastest-growing region, with a run-rate revenue that ha…	@AnthropicAI	Company	Original	2025-11-07	183,655	1,595	95	112	31	205
New on the Anthropic Engineering blog: tips on how to build more efficient agents that handle more tools while using fe…	@AnthropicAI	Company	Original	2025-11-04	1,727,340	3,553	444	138	180	4,068
Even when new AI models bring clear improvements in capabilities, deprecating the older generations comes with downside…	@AnthropicAI	Company	Original	2025-11-04	657,347	1,391	150	149	181	424
We're announcing a partnership with Iceland's Ministry of Education and Children to bring Claude to teachers across the…	@AnthropicAI	Company	Original	2025-11-04	213,088	1,075	120	84	55	171
The Anthropic Fellows program provides funding and mentorship for a small cohort of AI safety researchers. Here are f…	@AnthropicAI	Company	Original	2025-11-04	111,898	1,035	92	50	8	449
New Anthropic research: Signs of introspection in LLMs. Can language models recognize their own internal thoughts? Or …	@AnthropicAI	Company	Original	2025-10-29	1,179,504	4,735	771	280	316	2,529
This week we officially opened our first Asia-Pacific office in Tokyo. To mark this milestone, our CEO Dario Amodei met…	@AnthropicAI	Company	Original	2025-10-29	137,700	1,247	179	37	44	128
We’re expanding Claude for Financial Services, with an Excel add-in, new connectors to real-time data and market analyt…	@AnthropicAI	Company	Original	2025-10-27	3,325,163	6,843	584	200	281	4,311
We're opening our third Asia-Pacific office in Seoul, Korea. Korean users of Claude rank in the top 5 globally. We can’…	@AnthropicAI	Company	Original	2025-10-24	132,490	748	106	69	33	90
Today, we announced that we plan to expand our use of Google TPUs, securing approximately one million TPUs and more tha…	@AnthropicAI	Company	Original	2025-10-23	2,085,629	6,083	436	223	293	487
Our position has been consistent: AI will deliver enormous benefits and should be developed thoughtfully. We share the …	@AnthropicAI	Company	Original	2025-10-21	203,009	944	94	114	37	182
We’re building tools to support research in the life sciences, from early discovery through to commercialization. With…	@AnthropicAI	Company	Original	2025-10-20	907,028	2,258	342	108	122	893
New on the Anthropic Engineering Blog: Our tips for developers on using Agent Skills, a new way to extend Claude's capa…	@AnthropicAI	Company	Original	2025-10-16	186,795	1,361	199	49	52	644
Claude now connects to Microsoft 365. Claude can search for information in SharePoint, OneDrive, Outlook and Teams, pr…	@AnthropicAI	Company	Original	2025-10-16	643,109	2,273	211	83	84	667
We asked economists and researchers to explore policy responses to the potential economic effects of powerful AI. Now,…	@AnthropicAI	Company	Original	2025-10-14	143,486	622	76	60	35	215
We’re expanding our partnership with @Salesforce. Claude is now a preferred model in Agentforce for regulated industri…	@AnthropicAI	Company	Original	2025-10-14	86,645	818	78	52	12	97
Our team was grateful for the opportunity to meet with PM @narendramodi and Minister @AshwiniVaishnaw to discuss India'…	@AnthropicAI	Company	Quote	2025-10-12	158,052	1,231	69	72	5	66
Anthropic CEO Dario Amodei met today with Prime Minister @narendramodi. We're looking forward to growing our Indian te…	@AnthropicAI	Company	Quote	2025-10-11	353,446	4,771	333	126	18	223
New research with the UK @AISecurityInst and the @turinginst: We found that just a few malicious documents can produc…	@AnthropicAI	Company	Original	2025-10-09	538,627	1,531	244	81	75	629
We’re opening an office in Bengaluru, India in early 2026. We look forward to building with India’s developer community…	@AnthropicAI	Company	Original	2025-10-08	653,818	5,794	476	267	194	570
Last week we released Claude Sonnet 4.5. As part of our alignment testing, we used a new tool to run automated audits f…	@AnthropicAI	Company	Original	2025-10-06	212,943	2,484	272	87	36	912
We’re at an inflection point in AI’s impact on cybersecurity. Claude now outperforms human teams in some cybersecurity…	@AnthropicAI	Company	Original	2025-10-03	212,716	2,156	210	96	47	512
New on the Anthropic Engineering Blog: Most developers have heard of prompt engineering. But to get the most out of AI …	@AnthropicAI	Company	Original	2025-09-30	509,367	3,118	490	118	104	2,392
Chris Ciauri is joining Anthropic as our Managing Director of International. He joins during a period of rapid global…	@AnthropicAI	Company	Original	2025-09-26	160,674	641	52	58	13	49
Claude Sonnet 4 and Opus 4.1 are now available in Microsoft 365 Copilot, bringing Claude’s advanced reasoning capabilit…	@AnthropicAI	Company	Original	2025-09-24	197,002	1,834	221	114	59	205
We're partnering with Learning Commons from the Chan Zuckerberg Initiative—addressing some of the biggest challenges we…	@AnthropicAI	Company	Quote	2025-09-23	162,819	629	62	54	1	133
New from the Anthropic Economic Index: the first comprehensive analysis of how AI is used in every US state and country…	@AnthropicAI	Company	Original	2025-09-15	304,322	2,302	300	85	71	1,297
Our collaboration with the US Center for AI Standards and Innovation (CAISI) and UK AI Security Institute (AISI) shows …	@AnthropicAI	Company	Original	2025-09-12	76,599	379	34	37	5	45
New on the Anthropic Engineering blog: writing effective tools for LLM agents. AI agents are only as powerful as the t…	@AnthropicAI	Company	Original	2025-09-11	658,665	2,665	436	96	93	2,053
Anthropic is endorsing California State Senator Scott Wiener’s SB 53. This bill provides a strong foundation to govern …	@AnthropicAI	Company	Original	2025-09-08	205,629	981	92	107	48	97
We've raised $13 billion at a $183 billion post-money valuation. This investment, led by @ICONIQCapital, will help us …	@AnthropicAI	Company	Original	2025-09-02	2,162,823	7,669	512	500	690	716
We're announcing the Anthropic National Security and Public Sector Advisory Council, a bipartisan group of defense, int…	@AnthropicAI	Company	Original	2025-08-27	143,804	632	67	127	43	89
Our new Threat Intelligence report details how we’ve identified and disrupted sophisticated attempts to use Claude for …	@AnthropicAI	Company	Original	2025-08-27	193,559	1,296	154	71	45	311
We’ve developed Claude for Chrome, where Claude works directly in your browser and takes actions on your behalf. We’re…	@AnthropicAI	Company	Original	2025-08-26	1,613,887	8,504	911	431	678	2,158
How do educators use Claude? We ran a privacy-preserving analysis of 74,000 real conversations to identify trends in h…	@AnthropicAI	Company	Original	2025-08-26	74,045	577	69	33	8	202
New Anthropic research: filtering out dangerous information at pretraining. We’re experimenting with ways to remove in…	@AnthropicAI	Company	Original	2025-08-22	254,562	1,901	170	210	99	665
We’ve made three new AI fluency courses, co-created with educators, to help teachers and students build practical, resp…	@AnthropicAI	Company	Original	2025-08-21	224,921	1,953	223	62	32	1,122
We partnered with @NNSANews to build first-of-their-kind nuclear weapons safeguards for AI. We've developed a classifi…	@AnthropicAI	Company	Original	2025-08-21	253,590	850	80	110	101	135
Join Anthropic interpretability researchers @thebasepoint, @mlpowered, and @Jack_W_Lindsey as they discuss looking into…	@AnthropicAI	Company	Original	2025-08-15	164,699	858	126	67	44	495
As part of our exploratory work on potential model welfare, we recently gave Claude Opus 4 and 4.1 the ability to end a…	@AnthropicAI	Company	Original	2025-08-15	1,603,405	3,243	178	315	476	782
A reminder that applications for our Anthropic Fellows program are due by this Sunday, August 17. Fellowships can star…	@AnthropicAI	Company	Quote	2025-08-14	126,561	558	74	22	3	83
Today we're sharing a post on how our Safeguards team identifies potential misuse of our models and builds defenses aga…	@AnthropicAI	Company	Original	2025-08-12	77,226	578	46	54	9	109
Federal workers deserve access to the most capable AI tools to better serve the American people. Today, we’re removing …	@AnthropicAI	Company	Original	2025-08-12	162,319	871	57	56	34	84
We joined the Pledge to America's Youth along with 100+ organizations committed to advancing AI education. We'll work …	@AnthropicAI	Company	Quote	2025-08-08	219,224	1,097	117	59	6	92
Claude Code can now automatically review your code for security vulnerabilities.	@AnthropicAI	Company	Quote	2025-08-06	471,796	4,467	436	135	63	1,209
U.S. federal departments and agencies can now more quickly and easily get access to Claude to transform how they work, …	@AnthropicAI	Company	Original	2025-08-05	72,560	586	35	30	4	51
Today we're releasing Claude Opus 4.1, an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning. …	@AnthropicAI	Company	Original	2025-08-05	4,138,294	10,060	1,300	591	878	1,109
New Anthropic research: Persona vectors. Language models sometimes go haywire and slip into weird and unsettling perso…	@AnthropicAI	Company	Original	2025-08-01	1,429,791	5,748	875	220	314	3,614
Claude artifacts are now even better. Upload PDFs, images, code files, and more to AI-powered apps that work with your…	@AnthropicAI	Company	Original	2025-07-31	196,343	2,268	253	83	57	601
👋 @claudeai is now on X.	@AnthropicAI	Company	Original	2025-07-30	3,716,956	5,874	366	739	216	331
We've joined @CMSgov and the White House to sign the Health Tech Ecosystem pledge, a new public-private effort to impro…	@AnthropicAI	Company	Original	2025-07-30	86,659	425	68	32	16	47
New on mobile: Draft and send emails, messages, and calendar invites directly from the Claude app. https://t.co/qEaW1zx…	@AnthropicAI	Company	Original	2025-07-30	261,966	2,440	231	94	91	494
We’re joining the UK AI Security Institute's Alignment Project, contributing compute resources to advance critical rese…	@AnthropicAI	Company	Original	2025-07-30	88,159	465	70	48	12	59
We’re running another round of the Anthropic Fellows program. If you're an engineer or researcher with a strong codin…	@AnthropicAI	Company	Original	2025-07-29	1,721,060	2,697	220	68	37	1,642
Claude can now read and update your @NotionHQ pages and @linear tickets directly through MCP. Connect your workspace t…	@AnthropicAI	Company	Original	2025-07-28	197,106	1,439	174	81	31	364
We’re rolling out new weekly rate limits for Claude Pro and Max in late August. We estimate they’ll apply to less than …	@AnthropicAI	Company	Original	2025-07-28	2,331,039	2,856	302	564	726	651
Your connected tools are now available in Claude on your mobile device. Now you can access projects, create new docs,…	@AnthropicAI	Company	Original	2025-07-25	161,566	1,304	151	68	62	211
Turn written content into professional designs with Claude + @canva Upload any document — blog post, product guide, …	@AnthropicAI	Company	Original	2025-07-24	358,079	3,554	359	100	63	1,811
New Anthropic research: Building and evaluating alignment auditing agents. We developed three AI agents to autonomousl…	@AnthropicAI	Company	Original	2025-07-24	394,271	1,290	186	59	54	691
We're hosting a social hour in London in early August for quant traders and developers. If you'd like to join us, meet…	@AnthropicAI	Company	Original	2025-07-24	125,168	609	101	28	6	110
The White House AI Action Plan gets it right on infrastructure, federal adoption, and safety coordination. It reflects …	@AnthropicAI	Company	Original	2025-07-23	118,281	1,146	58	53	15	113
In a joint paper with @OwainEvans_UK as part of the Anthropic Fellows Program, we study a surprising phenomenon: sublim…	@AnthropicAI	Company	Quote	2025-07-22	243,191	1,162	162	47	55	472
New ways to engage with artifacts on mobile: Create interactive tools, browse the gallery, and share your work directl…	@AnthropicAI	Company	Original	2025-07-22	98,439	994	129	36	13	150
New Anthropic report: Build AI in America. We outline what it will take to ensure America has the energy and infrastru…	@AnthropicAI	Company	Original	2025-07-22	304,944	1,778	167	60	56	448
We're announcing Paul Smith as our Chief Commercial Officer, starting later this year. Paul brings over 30 years of ex…	@AnthropicAI	Company	Original	2025-07-18	90,800	901	74	52	9	77
We've launched Claude for Financial Services. Claude now integrates with leading data platforms and industry providers…	@AnthropicAI	Company	Original	2025-07-17	749,808	5,723	521	145	181	2,429
At @SenMcCormickPA’s Pennsylvania Energy and Innovation Summit, we announced $2M for @CarnegieMellon programs to advanc…	@AnthropicAI	Company	Original	2025-07-15	72,392	279	20	24	3	20
We're announcing a $200M ceiling contract with the U.S. Department of Defense. Through hands-on prototyping and direct…	@AnthropicAI	Company	Original	2025-07-14	698,606	3,139	216	194	207	390
We've published a directory of apps and tools that connect to Claude with one click. Browse and connect Claude to @can…	@AnthropicAI	Company	Original	2025-07-14	566,056	3,124	384	98	163	1,174
Applications are now open for our fall student programs. https://t.co/EB1AxM4qa0	@AnthropicAI	Company	Original	2025-07-10	149,932	1,258	103	67	12	437
New Anthropic research: Why do some language models fake alignment while others don't? Last year, we found a situation…	@AnthropicAI	Company	Original	2025-07-08	460,095	2,054	258	69	51	985
Today we published a targeted transparency framework for frontier AI development. Our framework focuses on major front…	@AnthropicAI	Company	Original	2025-07-07	134,577	1,385	162	48	32	349
Announcing the Anthropic Economic Futures Program—our latest commitment to understanding AI's impacts on work and the e…	@AnthropicAI	Company	Original	2025-06-27	201,138	1,647	178	63	38	490
New Anthropic Research: Project Vend. We had Claude run a small shop in our office lunchroom. Here’s how it went. http…	@AnthropicAI	Company	Original	2025-06-27	2,574,387	11,258	1,142	242	566	5,274
Local MCP servers can now be installed with one click on Claude Desktop. Desktop Extensions (.dxt files) package your …	@AnthropicAI	Company	Original	2025-06-26	574,125	2,669	352	60	101	1,333
New Anthropic Research: How people use Claude for emotional support. From millions of anonymized conversations, we stu…	@AnthropicAI	Company	Original	2025-06-26	467,033	2,915	320	143	188	1,145
Introducing two new ways to create with Claude: A dedicated space for building, hosting, and sharing artifacts, and th…	@AnthropicAI	Company	Original	2025-06-25	654,875	4,574	485	146	241	2,071
New Anthropic Research: Agentic Misalignment. In stress-testing experiments designed to identify risks before they cau…	@AnthropicAI	Company	Original	2025-06-20	1,037,291	3,285	584	171	291	1,622
Claude Code can now connect to remote MCP servers. Pull context from your tools directly into Claude Code with no loca…	@AnthropicAI	Company	Original	2025-06-18	540,949	2,565	393	103	134	997
New Anthropic Research: A new set of evaluations for sabotage capabilities. As models gain more agentic abilities, we …	@AnthropicAI	Company	Original	2025-06-16	309,035	1,505	218	57	43	645
New on the Anthropic Engineering blog: how we built Claude’s research capabilities using multiple agents working in par…	@AnthropicAI	Company	Original	2025-06-13	1,852,918	3,762	624	91	169	3,111
A look into how Anthropic teams use Claude Code:	@AnthropicAI	Company	Quote	2025-06-11	148,776	1,113	107	33	7	434
Listen to a conversation between the team at @cursor_ai and Anthropic:	@AnthropicAI	Company	Quote	2025-06-10	136,303	1,188	119	35	14	377
National security expert Richard Fontaine has been appointed to Anthropic’s Long-Term Benefit Trust: https://t.co/XV5UR…	@AnthropicAI	Company	Original	2025-06-06	73,320	481	46	26	5	52
Introducing Claude Gov—a custom set of models built for U.S. national security customers. Already deployed by agencies…	@AnthropicAI	Company	Original	2025-06-05	523,213	2,437	178	131	183	529
Projects on Claude now support 10x more content. When you add files beyond the existing threshold, Claude switches to …	@AnthropicAI	Company	Original	2025-06-05	254,567	3,361	322	153	125	675
Claude Code is now available as part of the Pro plan.	@AnthropicAI	Company	Quote	2025-06-04	877,857	3,781	453	125	235	541
We hosted the first Claude Create-a-thon with @socraticainfo and 50+ creative builders this weekend in NYC. Here’s wha…	@AnthropicAI	Company	Original	2025-06-03	116,464	740	45	28	8	241
Research and Integrations are now available on our Pro plan. https://t.co/SBfMM0SJSK	@AnthropicAI	Company	Quote	2025-06-03	250,687	1,566	183	54	65	313
Our interpretability team recently released research that traced the thoughts of a large language model. Now we’re ope…	@AnthropicAI	Company	Original	2025-05-29	805,944	4,827	554	108	134	2,011
Our Long Term Benefit Trust has appointed Reed Hastings to Anthropic's board of directors.	@AnthropicAI	Company	Original	2025-05-28	173,842	928	45	55	23	62
We're rolling out voice mode in beta on mobile. Try starting a voice conversation and asking Claude to summarize your …	@AnthropicAI	Company	Original	2025-05-27	540,435	4,457	447	246	270	795
Web search is now available to all Claude users on our free plan.	@AnthropicAI	Company	Quote	2025-05-27	303,832	2,869	317	97	77	226
THE WAY OF CODE, a project by @rickrubin in collaboration with Anthropic: https://t.co/Frh5szQf5y	@AnthropicAI	Company	Original	2025-05-23	2,641,468	10,349	1,224	453	1,031	6,227
Today, we're announcing four new capabilities on the Anthropic API to help developers build more powerful AI agents. A…	@AnthropicAI	Company	Original	2025-05-22	267,349	2,551	301	68	43	702
Introducing the next generation: Claude Opus 4 and Claude Sonnet 4. Claude Opus 4 is our most powerful model yet, and …	@AnthropicAI	Company	Original	2025-05-22	4,292,682	20,536	3,133	921	1,491	3,463
Join us from 9:30am PT tomorrow: https://t.co/3lSlYKqQCT.	@AnthropicAI	Company	Original	2025-05-21	1,041,898	3,778	387	217	387	629
Research is now available on mobile. Claude can research across the web and Google Workspace, delivering comprehensive…	@AnthropicAI	Company	Original	2025-05-15	254,511	1,620	162	101	49	262
We're launching a new bug bounty initiative to stress-test an updated version of our anti-jailbreaking system before it…	@AnthropicAI	Company	Original	2025-05-14	119,750	1,018	82	58	22	146
Web search is now available on our API. Developers can augment Claude's comprehensive knowledge with up-to-date data. …	@AnthropicAI	Company	Original	2025-05-07	213,609	1,688	214	69	76	350
Web search is available worldwide for all paid plans. For everyday tasks, Claude runs quick searches. For more complex…	@AnthropicAI	Company	Quote	2025-05-02	956,531	1,689	207	91	70	254
Today we're announcing Integrations, a new way to connect your apps and tools to Claude. We're also expanding Claude's…	@AnthropicAI	Company	Original	2025-05-01	1,189,106	3,727	538	178	238	1,358
To support our work in analyzing AI’s economic impacts, we’re pleased to announce the formation of the Anthropic Econom…	@AnthropicAI	Company	Quote	2025-04-28	116,523	580	98	40	8	107
New from the Anthropic Economic Index: Evidence on how coders use AI. Our previous research confirmed that AI is dispr…	@AnthropicAI	Company	Original	2025-04-28	242,785	1,175	216	40	23	512
As AI models become more complex and more capable, is it possible that they’ll have experiences of their own? It’s an …	@AnthropicAI	Company	Original	2025-04-24	281,472	1,101	213	117	86	406
New report: How we detect and counter malicious uses of Claude. For example, we found Claude was used for a sophistica…	@AnthropicAI	Company	Original	2025-04-23	438,240	3,044	317	146	83	850
New Anthropic research: AI values in the wild. We want AI models to have well-aligned values. But how do we know what …	@AnthropicAI	Company	Original	2025-04-21	292,532	1,892	275	72	59	864
Today we’re launching Research, alongside a new Google Workspace integration. Claude now brings together information f…	@AnthropicAI	Company	Original	2025-04-15	680,729	4,795	512	163	218	1,375
Introducing a new Max plan for Claude. It’s flexible, with options for 5x or 20x more usage compared to our Pro plan. …	@AnthropicAI	Company	Original	2025-04-09	525,997	2,042	187	261	114	286
New Anthropic research: How university students use Claude. We ran a privacy-preserving analysis of a million educatio…	@AnthropicAI	Company	Original	2025-04-08	344,506	2,770	362	58	55	1,368
New Anthropic research: Do reasoning models accurately verbalize their reasoning? Our new paper shows they don't. Thi…	@AnthropicAI	Company	Original	2025-04-03	1,120,636	3,494	564	146	164	1,474
Introducing Claude for Education. We're partnering with universities to bring AI to higher education, alongside a new …	@AnthropicAI	Company	Original	2025-04-02	614,359	5,708	700	173	219	2,109
Last month we launched our Anthropic Economic Index, to help track the effect of AI on labor markets and the economy. …	@AnthropicAI	Company	Original	2025-03-27	280,455	2,312	267	47	37	990
We've done some spring cleaning. The Claude interface is now more refined, thanks to your feedback. https://t.co/2iY4C…	@AnthropicAI	Company	Original	2025-03-27	597,810	3,625	202	182	87	340
New Anthropic research: Tracing the thoughts of a large language model. We built a "microscope" to inspect what happen…	@AnthropicAI	Company	Original	2025-03-27	1,573,537	8,371	1,418	180	413	5,160
We've shipped a number of updates for Claude Code, our agentic coding tool. Here's what we've been up to over the past…	@AnthropicAI	Company	Quote	2025-03-21	167,700	1,269	146	88	8	253
We’re launching a new blog: Engineering at Anthropic. A hub where developers can find practical advice and our latest …	@AnthropicAI	Company	Original	2025-03-21	327,537	5,266	465	92	45	1,964
Claude can now search the web. Each response includes inline citations, so you can also verify the sources. https://t.…	@AnthropicAI	Company	Original	2025-03-20	1,529,868	7,345	853	340	558	929
Our statement on Governor Newsom's AI Working Group Draft Report: https://t.co/hG9jCDX6uW	@AnthropicAI	Company	Original	2025-03-20	57,049	355	45	22	6	49
We've made several updates to the Anthropic API that help developers process more requests and reduce token usage with …	@AnthropicAI	Company	Original	2025-03-13	136,219	1,370	131	100	21	244
New Anthropic research: Auditing Language Models for Hidden Objectives. We deliberately trained a model with a hidden …	@AnthropicAI	Company	Original	2025-03-13	353,910	1,758	248	111	56	690
In response to the White House’s Request for Information on an AI Action Plan, Anthropic has submitted recommendations …	@AnthropicAI	Company	Original	2025-03-06	161,634	718	101	136	32	158
We've overhauled the Anthropic Console to serve as one place to build, test, and iterate on prompts with Claude. And n…	@AnthropicAI	Company	Original	2025-03-06	121,613	1,258	132	119	22	194
We’re proud to participate in @ENERGY’s first 1,000 Scientist AI Jam. Claude 3.7 Sonnet will be evaluated by National L…	@AnthropicAI	Company	Original	2025-02-28	101,411	948	104	106	13	103
New Anthropic research: Introducing hierarchical summarization. Our recent Claude models are able to use computers. Hi…	@AnthropicAI	Company	Original	2025-02-27	116,723	1,329	154	64	23	486
Claude will help power Amazon's next-generation AI assistant, Alexa+. Amazon and Anthropic have worked closely togethe…	@AnthropicAI	Company	Original	2025-02-26	812,372	5,558	493	287	277	540
New Anthropic research: Forecasting rare language model behaviors. We forecast whether risks will occur after a model …	@AnthropicAI	Company	Original	2025-02-25	157,673	1,408	140	89	16	443
A few researchers at Anthropic have, over the past year, had a part-time obsession with a peculiar problem. Can Claude…	@AnthropicAI	Company	Original	2025-02-25	1,574,242	8,678	1,068	309	476	2,626
Introducing Claude 3.7 Sonnet: our most intelligent model to date. It's a hybrid reasoning model, producing near-instan…	@AnthropicAI	Company	Original	2025-02-24	3,622,737	18,538	2,709	1,004	1,676	3,218
A statement from Dario Amodei on the Paris AI Action Summit: https://t.co/UqffuqkKd7	@AnthropicAI	Company	Original	2025-02-11	310,818	993	141	225	77	266
Today we’re launching the Anthropic Economic Index, a new initiative aimed at understanding AI's impact on the economy …	@AnthropicAI	Company	Original	2025-02-10	980,343	5,727	825	423	231	3,406
Nobody has fully jailbroken our system yet, so we're upping the ante. We’re now offering $10K to the first person to …	@AnthropicAI	Company	Quote	2025-02-05	1,675,655	3,000	312	636	220	1,161
New Anthropic research: Constitutional Classifiers to defend against universal jailbreaks. We’re releasing a paper alo…	@AnthropicAI	Company	Original	2025-02-03	1,351,004	2,260	280	319	164	832
Introducing Citations. Our new API feature lets Claude ground its answers in sources you provide. Claude can then cite…	@AnthropicAI	Company	Original	2025-01-23	420,673	3,295	349	166	143	923
Applications for the inaugural cohort of the Anthropic Fellows Program for AI Safety Research close on January 20th. F…	@AnthropicAI	Company	Quote	2025-01-13	163,377	716	87	66	9	146

Plushcap, by Matt Makai. 2021-2026.