A “diff” tool for AI: Finding behavioral differences in new models
… Acknowledgements This post was authored by Thomas Jiralerspong Anthropic Fellows Program and Trenton Bricken Anthropic Alignment Science . …
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Anthropic update unifies memory feature across Claude Cowork and chat
Measuring LLMs’ ability to develop exploits
… It was developed as a collaboration between UC Berkeley, the Max Planck Institute for Security and Privacy, UC Santa Barbara, and Arizona State University with contributions from security researchers at Anthropic, OpenAI, and Google , as a follow-on to the CyberGym vulnerability-reproduction benchm… …
Introducing Claude Sonnet 4.5
… Related content Apply for Anthropic’s AI for Science rare disease research grants Anthropic is sharing a focused call for AI for Science applications centered specifically on rare genetic diseases. …
How Claude Performs on Robotics Tasks
… Model Provider Adapter Claude Opus 4.7 Anthropic claude agent sdk Claude Opus 4.6 Anthropic claude agent sdk Claude Mythos Preview Anthropic claude agent sdk Claude Opus 4.5 Anthropic claude agent sdk Claude Opus 4.1 / 4 Anthropic claude agent sdk GPT-5.4 OpenAI via OpenRouter openrouter GPT-5.1 Op… …
Claude Opus 4.6
… Claude Opus 4.6 is the best Anthropic model we’ve tested. …
Vibe physics: The AI grad student
… Donating our open-source alignment tool Focus areas for The Anthropic Institute At The Anthropic Institute TAI , we’ll be using the information we can access from within a frontier lab to investigate AI’s impact on the world, and sharing our learnings with the public. …
Introducing Sonnet 4.6
… All runs used the Terminus-2 harness, except for OpenAI’s Codex CLI. …