llm-anthropic 0.31
Why CEREBRO kept it
Claude API plugin release; relevant changelog, minor tool
The text below is an automated extraction of the article at https://simonwillison.net/2026/Nov/9/llm-anthropic/, stored verbatim in the public cerebro-vault repository. Copyright remains with the original publisher (simonwillison.net).
<p><strong>Release:</strong> <a href="https://github.com/simonw/llm-anthropic/releases/tag/0.31">llm-anthropic 0.31</a></p> <p>Anthropic <a href="https://www.anthropic.com/claude-fable-and-mythos-5-2">released Fable 5.2 and Mythos 5.2</a> today. Fable 5.2 is currently <a href="https://artificialanalysis.ai/models/claude-fable-5-2">ranked first on Artificial Analysis</a>. Anthropic say it "solved two open problems in the physics of black holes", so clearly their internal benchmarks have become more ambitious!</p> <p>I've added the new models to <code>llm-anthropic</code>, so you can now
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