Models

Anthropic is updating Claude Fable 5's safety measures for biology-related queries to minimize instances where the model declines to respond...

The llm-anthropic plugin version 0.26 adds support for three new Claude models and introduces server-side tools including web search, web fe...

Simon Willison's monthly newsletter for sponsors covers recent developments in AI models and systems, including accidental cyberattacks by O...

Claude Legal Skill

AI-powered contract review skill with CUAD risk detection, market benchmarks, and lawyer-ready redlines. Works with Claude Code, Codex, Curs...

OpenAI, Anthropic, and Cursor have introduced localized pricing for the Indian market, though only two of the three companies structured the...

Anthropic has released Claude Opus 5, its latest flagship AI model, making it available across multiple platforms.

Simon Willison examines Ethan Mollick's evolving recommendations for which AI tools to use for different tasks, noting how the guide has shi...

Anthropic has made its latest Claude Opus 5 AI model available across all platforms, expanding access to the updated version of its language...

Anthropic's Opus 5 model outperforms Fable 5 and GPT-5.6 Sol on a benchmark intended to assess genuine intelligence capabilities.

Anthropic has released Claude Opus 5, a new AI model that offers improved speed and reduced costs compared to previous versions.

Anthropic has released Opus 5, an AI model designed to offer improved cost-efficiency alongside performance gains for enterprise application...

Anthropic announced Claude Opus 5, a new AI model that the company claims outperforms Fable 5 in agentic search tasks.