Home / Companies / Promptfoo

Promptfoo

LLM prompt evaluation and security. Acquired. Founded in 2024. www.promptfoo.dev.

Company Rankings View all leaderboards
YouTube rank by subscribers
No channel found
5 blog posts in 2026
356th of 525
50+ upvote Hacker News hits in 2026
No hits yet
Website Analysis Updated March 13, 2026.
Category Pages % Description
Blog 70 15.6% Blog posts, articles, tutorials
Documentation 347 77.1% Technical docs, support pages
Product 4 0.9% Use cases, customer stories
Company 14 3.1% About, careers pages
Localized 0 0.0% Translated content
Unsorted 15 3.3% Not yet analyzed
Competitive Spaces
LLM Prompt Evaluation
Large Language Model LLM Tools
Recent News
Mar 9, 2026 OpenAI acquires PromptFoo.
Jul 29, 2025 PromptFoo raises $18.4 million Series A funding.
Jul 23, 2024 Promptfoo raises $5 million in seed funding.
Website and Social Channel Links
Blog
www.promptfoo.dev/blog
Documentation
www.promptfoo.dev/docs
Jobs
www.promptfoo.dev/careers
Changelog
Not found
YouTube
Not found
X / Twitter
x.com/promptfoo
LinkedIn
promptfoo
Community
Discord
Plushcap, by Matt Makai. 2021-2026.