A ChatGPT 5-compatible rewrite of a Claude Fable-style custom system prompt, translating Anthropic-specific identity, tooling, artifact, MCP, search, and file-handling rules into OpenAI/ChatGPT-style behavior.
Signals
created 2026-06-14by alxspiker
Fable-5 attribution
Explicit model id: “Claude Fable” (95% confidence)