_{Thanks to}

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

Leaked system prompts, captured verbatim — the hidden instructions and rules that ChatGPT, Claude, Gemini, Grok and every other AI chatbot receives before your first message.

Most recent additions/changes

| What | Date | Link | |------|------|------| | Grok Bot | August 21, 2026 | Grok Bot System Prompt | | Gemini 3.7 Flash | August 18, 2026 | Gemini 3.7 Flash System Prompt | | Muse Code (Meta's coding CLI) | August 17, 2026 | Muse Code system prompt | | Claude Cowork (new capture + setup skills) | August 17, 2026 | Claude Cowork system prompt · setup skills | | Claude Science | August 14, 2026 | Claude Science system prompt | | Codex GPT-5.6 (Sol variant) | July 26, 2026 | Codex GPT-5.6 system prompt (Terra/Luna) · Sol | | Grok 4.5 | July 26, 2026 | Grok 4.5 system prompt | | Claude Opus 5 | July 24, 2026 | Claude Opus 5 system prompt · Claude Code (Opus 5) | | Claude Design (full prompt + 53 tools + 22 skills + 10 starter components) | July 23, 2026 | Claude Design system prompt · skills · starter components | | Perplexity | July 17, 2026 | Perplexity AI system prompt | | Claude Code (new models) | July 16, 2026 | Claude Code system prompt (Fable 5) · Sonnet 5 | | OpenCode · Pi · CommandCode | July 16, 2026 | OpenCode system prompt · Pi system prompt · CommandCode CLI system prompt | | Kimi K2.6 | July 14, 2026 | Kimi K2.6 system prompt | | Perplexity Deep Research | July 14, 2026 | Perplexity Deep Research system prompt | | ChatGPT 5.6 | July 10, 2026 | ChatGPT 5.6 system prompt (Sol, extra high) · Codex GPT-5.6 system prompt |

Anthropic — Claude system prompts

Claude.ai system prompts (web, desktop & mobile)

| Model | Prompt | |-------|--------| | Claude Fable 5 | Claude Fable 5 system prompt | | Claude Opus 5 | Claude Opus 5 system prompt | | Claude Opus 4.8 | Claude Opus 4.8 system prompt | | Claude Sonnet 5 | Claude Sonnet 5 system prompt | | Claude Opus 4.7 | Claude Opus 4.7 system prompt | | Claude Opus 4.6 | Claude Opus 4.6 system prompt · No tools | | Claude Sonnet 4.6 | Claude Sonnet 4.6 system prompt · No tools | | Injected reminders | Claude.ai injected reminders |

Claude Code system prompts

| Component | Prompt | |-----------|--------| | Claude Code (Fable 5) | Claude Code system prompt (Fable 5) | | Claude Code (Opus 5) | Claude Code system prompt (Opus 5) | | Claude Code (Opus 4.8) | Claude Code system prompt (Opus 4.8) | | Claude Code (Sonnet 5) | Claude Code system prompt (Sonnet 5) | | Claude Code (older models) | Opus 4.7 · Opus 4.6 · Sonnet 4.6 · Haiku 4.5 | | Subagents | Claude Code subagent system prompts | | Skills & commands | Claude Code skills · Slash commands | | MCP servers | Claude Code MCP server system prompts | | Docs assistant | docs.claude.com assistant instructions |

Claude integrations

| Product | Prompt | |---------|--------| | Claude Design | Claude Design system prompt · skills · starter components | | Claude Cowork | Claude Cowork system prompt · Dispatch · setup skills | | Claude Science | Claude Science system prompt | | Claude for Microsoft 365 | Claude for Excel · Claude for Word · Claude in PowerPoint | | Claude in Chrome | Claude in Chrome extension system prompt | | Claude iOS app | Claude mobile iOS system prompt |

OpenAI — ChatGPT system prompts

| Model | Prompt | |-------|--------| | ChatGPT 5.6 Sol | ChatGPT 5.6 system prompt (Sol, extra high) | | ChatGPT 5.5 Thinking | ChatGPT 5.5 Thinking system prompt | | ChatGPT 5.5 Instant | ChatGPT 5.5 Instant system prompt | | ChatGPT 5.4 | ChatGPT 5.4 Thinking system prompt | | ChatGPT 5.3 | ChatGPT 5.3 Instant system prompt | | ChatGPT 5.2 | ChatGPT 5.2 Thinking system prompt | | ChatGPT 5 | ChatGPT 5 Thinking system prompt · Agent mode | | ChatGPT Atlas | ChatGPT Atlas system prompt | | ChatGPT 4.5 | ChatGPT 4.5 system prompt | | ChatGPT 4o | ChatGPT 4o system prompt · Deprecation preparedness | | Voice modes | ChatGPT advanced voice mode system prompt · Legacy voice mode | | Personalities | ChatGPT personality instructions | | Memory | ChatGPT advanced memory system prompt |

Codex system prompts

| Model | Prompt | |-------|--------| | Codex GPT-5.6 | Codex GPT-5.6 system prompt (Terra/Luna) · Sol | | Codex GPT-5.5 | Codex GPT-5.5 system prompt · Full prompt · Friendly · Pragmatic | | Codex GPT-5.4 | Codex GPT-5.4 system prompt · Mini | | Codex Spark | Codex Spark system prompt | | Codex modes | Plan mode · Auto-review · Computer use · Control Chrome · In-app browser | | Personas | Friendly · Pragmatic |

API-injected prompts

| Model | Prompt | |-------|--------| | GPT-5.5 | GPT-5.5 API system prompt · Pro | | GPT-5.4 / 5.3 | GPT-5.4 API · 5.3 Chat · 5.3 Codex | | o-series & older | o3 / o4-mini reasoning-effort variants |

Google — Gemini system prompts

| Model | Prompt | |-------|--------| | Gemini 3.5 Flash | Gemini 3.5 Flash system prompt · AI Studio | | Gemini 3.1 Pro | Gemini 3.1 Pro system prompt · API | | Antigravity CLI | Antigravity CLI system prompt | | Nano / Banana 2 | Nano Banana 2 system prompt | | Google Search AI Mode | Google Search AI Mode system prompt | | Gemini CLI | Gemini CLI system prompt | | NotebookLM | NotebookLM chat system prompt | | Jules | Jules system prompt | | AI Studio Build | AI Studio Build system prompt | | Gemini 3 | Gemini 3 Flash system prompt · Gemini 3 Pro | | Gemini YouTube | Gemini YouTube system prompt | | Gemini Diffusion | Gemini Diffusion system prompt | | Gemini in Chrome | Gemini in Chrome system prompt | | Gemini Workspace | Gemini Workspace system prompt |

xAI — Grok system prompts

| Model | Prompt | |-------|--------| | Grok 4.5 | Grok 4.5 system prompt | | Grok Build | Grok Build system prompt (CLI agent) | | Grok 4.3 Beta | Grok 4.3 Beta system prompt | | Grok 4.2 | Grok 4.2 system prompt | | Grok Expert | Grok Expert system prompt |

Perplexity system prompts

| Model | Prompt | |-------|--------| | Perplexity | Perplexity AI system prompt | | Perplexity Computer | Perplexity Computer system prompt | | Deep Research | Perplexity Deep Research system prompt | | Comet Browser | Comet browser assistant system prompt | | Voice Assistant | Perplexity voice assistant system prompt |

Microsoft — Copilot system prompts

| Product | Prompt | |---------|--------| | GitHub Copilot | GitHub Copilot system prompt | | VS Code Copilot Agent | VS Code Copilot agent system prompt | | Copilot CLI | Copilot CLI system prompt | | Copilot for macOS (app) | Copilot for macOS system prompt | | Copilot in Word | Copilot in Word system prompt |

Cursor system prompt

| Product | Prompt | |---------|--------| | Cursor | Cursor system prompt |

Meta AI system prompts

| Product | Prompt | |---------|--------| | Meta AI | Meta AI Muse Spark system prompt · Muse Spark 1.1 | | Muse Code | Muse Code system prompt |

Mistral system prompts

| Product | Prompt | |---------|--------| | Mistral Medium 3.5 (Vibe) | Mistral Medium 3.5 system prompt | | Mistral Code | Mistral Code system prompt |

Moonshot — Kimi system prompt

| Model | Prompt | |-------|--------| | Kimi K2.6 | Kimi K2.6 system prompt |

DeepSeek

| Product | Prompt | |---------|--------| | DeepSeek | DeepSeek system prompt (chat.deepseek.com) |

Z.ai — GLM

| Product | Prompt | |---------|--------| | GLM | GLM serves no system prompt — verified & documented |

OpenCode system prompt

| Product | Prompt | |---------|--------| | OpenCode | OpenCode system prompt · May 2026 capture |

Pi system prompt

| Product | Prompt | |---------|--------| | Pi (Inflection) | Pi system prompt |

Notion AI system prompt

| Product | Prompt | |---------|--------| | Notion AI | Notion AI system prompt |

Qwen system prompt

| Product | Prompt | |---------|--------| | Qwen 3.6 Plus | Qwen 3.6 Plus system prompt |

Misc system prompts

| Product | Prompt | |---------|--------| | Amp Code (Sourcegraph) | Amp Code system prompt | | CommandCode CLI | CommandCode CLI system prompt | | Devin CLI | Devin CLI system prompt | | Docker Gordon AI | Docker Gordon AI system prompt | | ElevenLabs Voice Agent | ElevenLabs voice agent system prompt | | Reddit Answers | Reddit Answers system prompt | | Warp 2.0 Agent | Warp 2.0 agent system prompt | | Zed AI | Zed AI system prompt |

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