llm-anthropic 0.25.1
Simon Willison · Simon Willison · 2026-05-28
Simon Willison releases llm-anthropic 0.25.1, a Python plugin update adding Claude Opus 4.8 support, a fast-mode flag, and a fix that raises the default max_tokens to each model's actual maximum output.
Appears in
Extraction
Topics: open-source-toolsllm-sdkanthropic-apipython-library
Claims
- llm-anthropic 0.25.1 adds Claude Opus 4.8 (claude-opus-4.8) as a supported model.
- A new -o fast 1 option enables fast mode for organizations with that feature enabled on their Anthropic account.
- Default max_tokens now matches each model's maximum output capacity rather than the previous hard-coded 8,192 token limit.
Key quotes
Default max_tokens for each model now defaults to that model's maximum output rather than 8,192.