Anthropic's Advanced AI Framework Read the advanced AI Safety Framework → We are publishing our proposal for h

Overview Claude and the mission of Anthropic Claude is trained by Anthropic, and our mission is to ensure that the world safely makes the transition through transformative AI. Anthropic occupies a peculiar position in th

Back to Careers Expression of Interest Research Manager, Interpretability San Francisco, CA Apply Research Engineer / Research Scientist, Tokens New York City, NY; New York City, NY | Seattle, WA; San Francisco, CA Apply

Claude Fable 5.1 Summary Table Model description Claude Fable 5.1 is the world’s most advanced model for coding and knowledge work—and its research capabilities offer an early glimpse of how AI models will contribute to

Shape how AI meets the world Anthropic builds Claude—AI designed to be helpful, honest, and harmless. We're researchers, engineers, and builders from a range of disciplines, working to make sure powerful AI goes well for

AI will be one of the most transformative technologies in history. We work with governments to ensure that AI policy is built on the best available evidence. Policy on the AI Exponential AI is advancing at exponential sp

Anthropic Interviewer is a research tool, powered by Claude, that runs detailed conversational interviews at scale and feeds the results back to researchers for analysis. We built it to fill a gap: our earlier research c

Last updated Aug 25, 2026 Anthropic’s AI for Science Program (the “Program”) is sponsored by Anthropic, PBC (“Anthropic,” “we,” “our,” or “us”). The Program and all entries are subject to and governed by Anthropic’s priv

Featured How we contain Claude across products As agents grow more capable, so does thei

Discover Anthropic’s upcoming events, watch livestreams, and access recordings from past conferences and webinars. Filtered Oops! Something went wrong while submitting the form. Events View Sort Thank you! Your submissio

Last updated Jul 10, 2025 At Anthropic, we use Claude every day, so we’re looking for candidates who excel at collaborating with AI. Here's when and how to use Claude (or other AI tools) when applying to and interviewing

Our research teams investigate the safety, inner workings, and societal impacts of AI models—so that artificial intelligence has a positive impact as it becomes increasingly capable. Alignment The Alignment team works to

Hybrid reasoning model with fast, capable intelligence for real-time agents and high-volume work, featuring a 1M context window Announc

Claude Sonnet 5 is built to be the most agentic Sonnet model yet. It can make plans, use tools like browsers and terminals, and run autonomously at a level that, just a few months ago, required larger and more expensive

Last updated Feb 14, 2025 The security of our systems and user data is Anthropic’s top priority. We appreciate the work of security researchers acting in good faith in identifying and reporting potential vulnerabilities.

Our fastest model, a lightweight version of our most powerful AI, at a more affordable price Announcements - New Claude Haiku

As a public benefit corporation, Anthropic is dedicated to ensuring the world safely makes the transition through transformative AI. Our multidisciplinary leadership team shapes and drives the company's strategy in suppo

Resolved - This issue has been resolved. Impact occurred from 5:50pm PT / 00:50 UTC to 7:10pm PT / 02:10 UTC. Sep 22, 02:35 UTC Monitoring - We have seen success rates return to normal across affected models, and are mon

Our most capable model for cybersecurity and biology research. Announcements - NEW Introducing Claude Mythos 5.1

Hybrid reasoning model built for serious coding and AI agents, featuring a 1M context window Announcements - NEW Claude Opus 5.5

Program overviewFor fellowsFor hostsFAQ Apply to be a fellowApply to be a host Code the DreamNC Braven

Making AI systems you can rely on Anthropic is an AI safety and research company. We build reliable, interpretable, and steerable AI systems. Our Purpose We believe AI will have a vast impact on the world. Anthropic is d

To the extent permitted by law, Anthropic reserves the right to not provide its products or services to entities whose majority direct or indirect ownership is attributable to nations other than those listed in our Suppo

Next generation of intelligence for the hardest knowledge work and coding problems. Announcements - New Introducing

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We founded Anthropic because we believe the impact of AI might be comparable to that of the industrial and scientific revolutions, but we aren’t confident it will go well. And we also believe this level of impact could s