Claude vs. ChatGPT comparison using leaked Fable 5.1 system prompt

seanmcdonaldxyz · x · 2026-09-02

Post compares responses from Claude and ChatGPT, noting the first excerpt comes from the recently leaked Fable 5.1 system prompt. Highlights differences in instruction following and style.

Related event: Leaked Fable 5.1 System Prompt Sparks Claude vs ChatGPT Comparisons(2 posts)→

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