Somebody just leaked Claude Fable 5 system prompt just got leaked

@nocode.joshua

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Fable 5seen in 124 videos →

Why it worked

The video leverages the novelty of a leaked system prompt for a powerful AI model, offering a practical and cost-saving workaround for users facing rate limits. This taps into the desire for advanced AI capabilities at a lower cost and with greater accessibility.

Summary

The video reveals that the Claude Fable 5 system prompt has been leaked. The creator demonstrates how to use this prompt with cheaper, open-source models to achieve similar or better results without hitting rate limits, enabling the creation of advanced websites and AI agents.

Structure

1Introduction of the leaked Claude Fable 5 system prompt
2Demonstration of hitting rate limits with standard Claude usage
3Explanation of how to use the leaked prompt with cheaper models
4Showcasing the capabilities of Fable 5 prompt with other LLMs
5Call to action to comment for the full prompt

Product placement

The video discusses and shows the Claude Fable 5 system prompt, demonstrating its use with alternative models like Kimi K2.7 and other open-source LLMs.

Original caption

Somebody just leaked Claude Fable 5’s system prompt on the internet and I just found the craziest use case for it. #claude #claudeai #ai

More from @nocode.joshua

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Call to action

Comment "system" below and I'll send it all over to you.

On-screen text

Claude Fable 5 system prompt just got leaked Fable 5 Claude-Fable-5.md 115,740 CHARACTERS 119,865 CHARACTERS System: <budget:token_budget> 190000 </budget:token_budget> Claude should never use <claude_behavior> <product_information> Kimi K2.7 Open Source Fable 5 Claude-Fable-5.md Claude-Sunset-4 GPT-4.1 Gemini 2.5 Pro Kimi K2.7 Llama 4 Mixtral Large DeepSeek-S1 Grab 4 Fable 5 super Websites AI Agents system

Transcript

Somebody just leaked Claude Fable 5 system prompt just got leaked on the internet and I just found the craziest use case for it. So if you use Fable 5 inside Claude, you hit your rate limit in like two prompts. It's crazy. But what if there was a way to use Fable 5 without ever hitting your limit? I just found it. Claude Fable 5 system prompt is 120,000 characters long and has the exact secret structure that Anthropic uses to create a model that thinks and builds better than anyone. What you gotta do is take this system prompt and drop it into a model which is 100 times cheaper. Find something like Kimi K 2.7 or any open source model. You now get the thinking structure and power of Fable 5 prompt right inside LLM. So you can build super websites, and AI agents without hitting every limit every 5 minutes. If you want the full system prompt, just comment "system" below and I'll send it all over to you.