Anthropic slashes 80% of Claude Code's system prompt for Fable 5 models
Anthropic reduced Claude Code's system prompt by 80% to better suit its new Fable 5 models, deemed more autonomous.
Published 9sem1 sourceNotable
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The fact
Detailed instructions now hinder performance, as the models are described as 'more imaginative' than predefined guidelines.
The shift favors context-based steering over rigid rules, per an Anthropic staffer.
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