llm-anthropic 0.28

Release: llm-anthropic 0.28 Claude Fable 5.1, reasoning traces are now displayed by default for models that support them, plus a new llm_anthropic.ClaudeRefusal exception for when Claude throws a refusal. Tags: llm, anthropic, claude, claude-mythos-fable

Source: Simon Willison — Published September 2, 2026 at 17:59 UTC — Category: Tools