How AI Is Transforming Work at Anthropic
…At the time this data was collected, Claude Sonnet 4 and Claude Opus 4 were the most capable models available, and capabilities have continued to advance. More capable AI brings productivity benefits…
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Measuring AI agent autonomy in practice
…An initial update An early update on what we've learned from Project Glasswing.
Claude Fable 5 and Claude Mythos 5
…Availability Claude Fable 5 is available everywhere today. Claude Mythos 5 is restricted to Glasswing partners (with cyber safeguards lifted) and soon to select biology researchers (with biology and chemistry safeguards lifted…
How we contain Claude across products
Engineering at Anthropic How we contain Claude across products Twelve months ago, we'd have rejected out of hand the idea of granting Claude access sufficient to take down an internal Anthropic…
Paving the way for agents in biology
…An initial update An early update on what we've learned from Project Glasswing.
Focus areas for The Anthropic Institute
…Last updated: May 7, 2026 Economic diffusion It’s crucial to understand how the deployment of increasingly powerful AI systems changes the economy. We also need to develop the necessary economic data…
Labor market impacts of AI: A new measure and early evidence
…Our usage data will be incorporated in future updates, forming an evolving picture of task and job coverage in the economy. The Eloundou et al. metric could also be updated, to the…
Eval awareness in Claude Opus 4.6’s BrowseComp performance
…Some e-commerce sites autogenerate persistent pages from search queries, even when there are zero matching products. For example, a site will take a query like “anonymous 8th grade first blog post…
Introducing advanced tool use on the Claude Developer Platform
…Tool definitions consuming >10K tokens Experiencing tool selection accuracy issues Building MCP-powered systems with multiple servers 10+ tools available Less beneficial when: Small tool library (<10 tools) All tools used frequently…
Emergent introspective awareness in large language models
…An initial update An early update on what we've learned from Project Glasswing.