Extracted system prompts from Anthropic - Claude Fable 5, Opus 4.8, Claude Code, Claude Design. OpenAI - ChatGPT 5.5 Thinking, GPT 5.5 Instant, Codex. Google - Gemini 3.5 Flash, 3.1 Pro, Antigravity. xAI - Grok, Cursor, Copilot, VS Code, Perplexity, and more. Updated regularly.
🆕 As seen in The Washington PostAccess system prompts from all major AI providers including Anthropic, OpenAI, Google, xAI, and more.
Stay current with the latest model updates and prompt changes from all AI platforms.
All content is licensed under Creative Commons Zero v1.0 Universal - completely free to use.
| What | Date | Link |
|---|---|---|
| Claude Sonnet 5 | July 1, 2026 | System prompt |
| Claude Design (Opus 4.8) | June 26, 2026 | System prompt |
| GitHub Copilot for macOS | June 18, 2026 | System prompt |
| GPT-5.5 Codex | June 18, 2026 | System prompt |
| Claude Fable 5 | June 9, 2026 | System prompt |
