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How Claude’s text watermark works
In this article, we share answers to some of the questions we’ve received about how our chosen watermarking method works, whether it affects Claude’s outputs, and why we’re making this change.
Improving Fable 5's biology safeguards
We’re making updates to Claude Fable 5’s biology safeguards in a way that substantially reduces false positives. Fable 5 users will now experience many fewer “fallbacks”—where the system switches to a less capable model after they make a biology-related query.
The Making of Claude Code
The inside story of how Claude Code went from an internal CLI to Anthropic's coding agent, told by researchers, engineers and early users who built it.
Introducing Claude Sonnet 5
Sonnet 5 delivers frontier performance across coding, agents, and professional work at scale.
News
DateCategoryTitle
- How Claude’s text watermark works
- Improving Fable 5's biology safeguards
- Mariano-Florentino (Tino) Cuéllar to join Anthropic as Chief Global Affairs Officer
- Investigating three real-world incidents in our cybersecurity evaluations
- Our position on open-weights models
- Cognizant and Anthropic expand their partnership to bring Claude to enterprise clients
- Introducing Claude Opus 5
- A research agenda for the Economic Futures Research Fund
- Ask Claude about the Anthropic Economic Index
- Anthropic is donating another $20 million to Public First Action
