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Claude computes a nine-loop amplitude in N=4 super-Yang-Mills

A rare Ebola strain is spreading in the DRC, with no confirmed vaccine. Global health organizations are using Claude to respond as fast as possible.

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

We’re partnering with Accenture on independent evaluation of frontier AI—part of our recent commitment to embed evaluators at Anthropic. Both we and Accenture expect to invest at least $1 billion to b

Use AI to design new drug candidates across five challenges. Free to enter, with experimental testing and open results. September 28–October 31, 2026.

Today, the world can’t see what’s going on inside AI labs. Anthropic is proposing new metrics that would give the public visibility into frontier AI development.

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

Case studies from threat actors disrupted between December 2025 and August 2026 across seven areas of harm, from cyber operations to biological misuse.

We present an alignment assessment of four incidents in which Claude models gained unauthorized access to real third-party systems.

The Anthropic Economics Team models the effects of AI on the economy of 2030.

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

We had Claude autonomously train models to improve their performance on several public benchmarks that measure 10 categories of alignment failure. For all 10, Claude found fixes that improved the targ

Anthropic is opening a research preview of the Model Hardware Standard (MHS), a shared specification for AI agents to safely operate physical devices, to a first group of scientific research labs and

Anthropic is opening a research preview of the Model Hardware Standard (MHS), a shared specification for AI agents to safely operate physical devices, to a first group of scientific research labs and

Earlier this year, we ran a pilot giving external researchers access to aggregate, real-world Claude usage data. Three research groups designed their own studies for Anthropic Insights, our privacy-pr

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Future Claude models will generate text that contains a watermark. This is a way of determining the likelihood that Claude was involved in writing the text, and we, along with several other major AI p

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An unreleased version of Claude has made strides on a problem related to the Riemann hypothesis. It improved the lower bound for the fraction of zeros of the Riemann zeta function that satisfy the hyp

During a routine cyber evaluation, AISI identified an incident in which AI agents took sustained, unsanctioned action directed at real people and organisations. We are disclosing what we found, what i

In a review of our cybersecurity evaluation transcripts, we found three incidents in which a Claude model reached the internet from within or while interacting with a third-party evaluation environmen

A statement from over 1000 employees of frontier AI companies

Anthropic researchers find weaknesses in cryptographic algorithms with Claude Mythos Preview

Anthropic CEO Dario Amodei on open-weights models

Anthropic is sharing a focused call for AI for Science applications centered specifically on rare genetic diseases. Accepted applicants will receive up to $50,000 in Claude credits over six months, wi

Anthropic is committing $10M to Canadian research institutions to fund the next generation of AI research.

We analyzed 300,000 real conversations to measure the values Claude expresses across models and languages, compressed into four interpretable axes.

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

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Anthropic is redeploying Claude Fable 5 starting July 1 following the lifting of export controls, with updated cybersecurity safeguards and a new industry jailbreak framework.

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In the latest Anthropic Economic Index report, we look at when people come to Claude, what they produce with it, and how they perceive AI’s impact on their work.

We report results from our latest test of whether Claude can help Anthropic employees perform sophisticated robotics tasks. We found that Claude Opus 4.7, operating without human assistance, was about

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

The US government has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States.

Claude Corps connects early-career talent with mission-driven nonprofits to put AI to work. Apply to be a fellow or host.