The Claude 3 model family represents a significant advancement in AI capabilities, offering state-of-the-art performance on various cognitive tasks such as analysis, forecasting, content creation, and conversing in non-English languages. The models, including Opus, Sonnet, and Haiku, demonstrate near-human levels of comprehension and fluency, and exhibit increased capabilities in handling long context prompts effectively. With robust recall capabilities and improved accuracy, the Claude 3 family is designed to be trustworthy and capable, with dedicated teams tracking and mitigating risks such as misinformation and biological misuse. The models are also more nuanced in their understanding of requests, recognizing real harm and refusing to answer harmless prompts less often. Furthermore, the Claude 3 models offer a range of benefits, including near-instant results, fewer refusals, improved accuracy, strong vision capabilities, long context and near-perfect recall, responsible design, easier to use, and more affordable options for enterprise workloads. The models are now available to use in claude.ai and the Claude API, with Opus and Sonnet available today and Haiku to be released soon.