system_prompts_leaks is by asgeirtj — not by us.
We indexed this project so people can find it. We are not selling it, we host no copy of the code, and we are not affiliated with or endorsed by its authors — get it from them.
Indexed Sep 28, 2026 · 68,524 stars at index time. Maintainers: claiming verifies your identity and unlocks a higher assurance tier. Removal requests are honored.
Application · for humans & their agents
system_prompts_leaks
unclaimed listingactively maintainedFreeCC0-1.0
Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-
by Open Source Community · New publisher
Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Google - Gemini 3.8 Flash, 3.1 Pro, Antigravity. xAI - Grok, Grok Bot, Cursor, Kimi and more! Updated regularly.
asgeirtj/system_prompts_leaks is an open-source project by asgeirtj: Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Google - Gemini 3.8 Flash, 3.1 Pro, Antigravity. xAI - Grok, Grok Bot, Cursor, Kimi and more! Updated regularly.. Indexed here so it can be found — not resold.
It is free. Get it from the upstream repository: https://github.com/asgeirtj/system_prompts_leaks
From the project's own README (excerpt, reproduced for discovery under its CC0-1.0 license):
Thanks to
Open Source Agent Analytics Understand your agents in production
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> The Washington Post built its interactive story on prompts from this repo: See the hidden rules behind AI. Then use them to rewrite this article. (May 11, 2026) > > CEPS' AI World built a live data dashboard from this repo's files: System prompts and what they tell us about the chat before the chat (July 10, 2026)
System Prompts Leaks
The full verbatim system prompts behind the most popular chatbots in the world. Carefully curated and complete. Feel free to open up a PR or get in contact if you got a different result.
Most recent additions/changes
What Date Link ------ ------ ------ GPT-6-Sol Codex September 27, 2026 GPT-6-Sol Codex system prompt GPT-6-Luna Codex September 27, 2026 GPT-6-Luna Codex system prompt Fable 5.1 Claude Code Desktop September 27, 2026 Claude Code desktop app system prompt (Fable 5.1) Claude Opus 5.5 September 22, 2026 Claude Opus 5.5 system prompt Opus 5.5 Claude Code September 22, 2026 Claude Code system prompt (Opus 5.5) Grok 4.7 September 21, 2026 Grok 4.7 system prompt (Grok CLI) Claude Projects September 21, 2026 Claude Projects - Thread Claude system prompt Claude Code Advisor tool September 15, 2026 Advisor tool prompts (both sides) ChatGPT Work Codex (local) September 13, 2026 ChatGPT Work Codex local system prompt Gemini 3.8 Flash September 13, 2026 Gemini 3.8 Flash system prompt Fable 5.1 Claude Code headless September 5, 2026 Claude Code headless system prompt (Fable 5.1) GPT-6-Astra Codex September 4, 2026 Codex GPT-6-Astra system prompt Claude Fable 5.1 September 1, 2026 Claude Fable 5.1 system prompt · Claude Code (Fable 5.1) Grok 4.6 August 29, 2026 Grok 4.6 system prompt Grok Bot…
01Capabilities
Does
- No capabilities recorded
Doesn’t
- No exclusions declared
02Requirements & stack
Depends on
No declared dependencies
Credentials needed
None declared
Stack
03Community
No endorsements yetNo verified confirmations yet — be the first.
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Issues 0
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04Trust Passport
Full passport →0/0 automated components pass. An automated score is never a security guarantee.
This listing is unclaimed, so publisher identity cannot be verified and it stays below the “verified” tier by design — that is a statement about the listing, not about the project’s quality. Our automated scans still ran; a maintainer who claims it unlocks identity verification.
05Versions
Full history →| Version | Channel | Released | Notes |
|---|---|---|---|
| 0.0.0 | stable | Sep 28, 2026 | Indexed listing — see the upstream repository for real release history. |