From that famous repo by @elder_plinius
Claude Fable 5 — System Prompt
4:42 AM · Jun 17, 2026 · 2.4K Views
From that famous repo by @elder_plinius
Claude Fable 5 — System Prompt
Users express excitement about the leaked Claude Fable 5 system prompt from GitHub because it provides valuable insights into LLM behaviors.
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https://github.com/elder-plinius/CL4R1T4S/blob/dc626fed52b06d687cdc812d51090c95ed03d575/ANTHROPIC/CLAUDE-FABLE-5.md
From that famous repo by @elder_plinius
Claude Fable 5 — System Prompt

@rohanpaul_ai @elder_plinius ⬆️

@rohanpaul_ai @elder_plinius Plinius dropping Fable 5 system prompts? That's the real alpha, let's see how they're handling the wild west of LLM instructions now.