A reference collection of the Claude Fable 5 system prompt, plus cleaned-up, generalized versions you can drop into any LLM-powered product or workflow.
| File | Description |
|---|---|
PROMPT_fable5.md |
The original Claude Fable 5 system prompt, kept intact for reference. |
PROMPT.md |
A generalized, vendor-neutral rewrite (English) โ adapted for use with any assistant or model. |
PROMPT.zh.md |
The same generalized prompt, translated into Chinese (็ฎไฝไธญๆ). |
The original prompt is product-specific to Claude/Anthropic. The two generalized versions strip out the brand- and platform-specific details so you can reuse the underlying behavior, safety, and formatting guidance in your own chatbot or agent.
You can integrate this prompt library directly into your own workflow:
- Pick the version that fits your use case โ the original for study, or one of the generalized prompts (
PROMPT.md/PROMPT.zh.md) as a starting template. - Use it as the system prompt for your assistant, or merge the relevant sections (refusal handling, output formatting, tone) into an existing prompt.
- Tailor the product-information and policy sections to match your own platform.
Want to push these prompts further? Our detailed guide breaks down how to pair them with Advanced Task Agents to unlock maximum performance on complex, multi-step work โ read it here: Getting the most out of the Claude Fable 5 prompt.
Provided for research and reference. The original Fable 5 prompt is the property of Anthropic; the generalized adaptations are offered as-is for your own projects.