llm-anthropic 0.25

Simon Willison's Blog Tools
llm-tool anthropic claude plugin python open-source

Summary

llm-anthropic 0.25 releases with support for Claude Opus 4.7, new thinking_effort and thinking_display options, increased default max_tokens, and removal of obsolete beta headers.

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Cached at: 04/20/26, 08:26 AM

# Release: llm-anthropic 0.25 Source: https://simonwillison.net/2026/Apr/16/llm-anthropic/ Releasellm\-anthropic 0\.25 (https://github.com/simonw/llm-anthropic/releases/tag/0.25)— LLM access to models by Anthropic, including the Claude series > - New model:`claude\-opus\-4\.7`, which supports`thinking\_effort`:`xhigh`\. \#66 - New`thinking\_display`and`thinking\_adaptive`boolean options\.`thinking\_display`summarized output is currently only available in JSON output or JSON logs\. - Increased default`max\_tokens`to the maximum allowed for each model\. - No longer uses obsolete`structured\-outputs\-2025\-11\-13`beta header for older models\.

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