Fable-5 system prompt leak (27 minute read) (opens in new tab)

Covered by 4 sources including tldr.tech, lesswrong.comDiscussed on X

The system prompt for Anthropic's Fable 5 model has been leaked. It comes to a total of around 120,000 characters. The entire leaked prompt is available in the thread.

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Covered in 4 articles

tldr.tech·

Dario Amodei policy 🏛️, DiffusionGemma ⚡, WhatsApp to unblock bots 🤖

lesswrong.com·

Claude Fable 5 and Mythos 5: Capabilities

thezvi.substack.com·

Claude Fable 5 and Mythos 5: Capabilities

Discussed on Substack

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