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system_prompts_leaks

Extracted system prompts from Anthropic — Claude Fable 5.1, Opus 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.

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agent-appJavaScriptsystem-promptpromptai-promptsai-agentsaichatbotcursorclaudesystem-promptsclaude-codellmanthropicchatgptcodexgoogleopenaigeminigrokgenerative-aiprompt-engineering

A repository collecting extracted system prompts from major AI products, including Anthropic (Claude, Claude Code), OpenAI (ChatGPT, Codex), Google (Gemini), xAI (Grok), Cursor, and Kimi. The collection is updated regularly and is written in JavaScript.

You want to study or reference the actual system prompts behind well-known AI assistants and coding agents.

Use it to

  • Study how vendors structure system prompts
  • Compare prompting styles across AI products
  • Reference prompts when designing your own agent
  • Track updates to prompts over time

For Prompt engineers and AI researchers

Role
agent-app
Language
JavaScript
Licence
CC0-1.0
Forks
10,893
Open issues
18
Last push
2026-09-13
topicssystem-promptsprompt-engineeringllmai-agentsreference-collection