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simon_willison · Nov 10, 2026 · news
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Quoting Prompting Claude Fable 5.2
simonwillison.netNov 10, 2026
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In brief
Claude Fable 5.2 pays close attention to who owns the code it works on. In Anthropic’s testing on small coding tasks, the model tended to add to the existing structure when the prompt said nothing about ownership or p...
Also covered by
- Introducing Claude Fable 5.2 and Claude Mythos 5.2 (anthropic_newsroom)
- Safely scaling multi-agent teams with Claude Fable 5.2 (claude_dev_blog)