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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
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 |
|---|---|---|
| Fable 5.1 Claude Code on the web (cloud) | September 30, 2026 | Claude Code on the web system prompt (Fable 5.1) |
| GPT-6.1-Sol Codex | September 29, 2026 | GPT-6.1-Sol Codex system prompt · ChatGPT Work local |
| Claude Sonnet 5.5 | September 29, 2026 | Claude Sonnet 5.5 system prompt |
| Sonnet 5.5 Claude Code | September 29, 2026 | Claude Code system prompt (Sonnet 5.5) |
| 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 | 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 |
| GPT-5.6 Codex | July 26, 2026 | Codex GPT-5.6 system prompt |
| 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 |
Anthropic — Claude system prompts
Claude.ai system prompts (web, desktop & mobile)
| Model | Prompt |
|---|---|
| Claude Sonnet 5.5 | Claude Sonnet 5.5 system prompt |
| Claude Opus 5.5 | Claude Opus 5.5 system prompt |
| Claude Fable 5.1 | Claude Fable 5.1 system prompt |
| Claude Opus 5 | Claude Opus 5 system prompt |
| Claude Fable 5 | Claude Fable 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 |
|---|---|
| Opus 5.5 Claude Code | Claude Code system prompt (Opus 5.5) |
| Fable 5.1 Claude Code | Claude Code system prompt (Fable 5.1) |
| Fable 5.1 Claude Code Desktop | Claude Code desktop app system prompt (Fable 5.1) · Fable 5 |
| Fable 5.1 Claude Code on the web | Claude Code on the web (cloud) system prompt (Fable 5.1) |
| Fable 5.1 Claude Code headless | Claude Code headless system prompt (Fable 5.1) |
| Opus 5 Claude Code | Claude Code system prompt (Opus 5) |
| Fable 5 Claude Code | Claude Code system prompt (Fable 5) |
| Opus 4.8 Claude Code | Claude Code system prompt (Opus 4.8) |
| Sonnet 5 Claude Code | 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 |
| Advisor tool | Advisor tool prompts (both sides) |
| Skills & commands | Claude Code skills · Slash commands |
| Docs assistant | docs.claude.com assistant instructions |
Claude integrations
| Product | Prompt |
|---|---|
| Claude Projects | Claude Projects - Thread Claude system 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 |
|---|---|
| GPT-6.1 Codex | GPT-6.1-Sol Codex system prompt · ChatGPT Work local |
| GPT-6 Codex | GPT-6-Astra Codex system prompt · Sol · Luna · ChatGPT Work local |
| GPT-5.6 Codex | Codex GPT-5.6 system prompt (Terra/Luna) |
| GPT-5.5 Codex | Codex GPT-5.5 system prompt · Full prompt · Friendly · Pragmatic |
| GPT-5.4 Codex | 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 |
Old models, tools & deprecated features
| Category | Prompts |
|---|---|
| Old models | GPT-4.5 · GPT-4.1 · GPT-4.1 Mini · o3 · o4-mini · GPT-5.2 Mini (free) · ChatGPT 4o Mini |
| Old 4o variants | 4o WhatsApp · 4o new personality · Monday GPT |
| Old tools | Canvas · Image gen · File search · Python · Web search |
| Old policies | Image safety · Image safety (2026) · Automation context |
| GPT-5 personalities | Listener · Nerdy · Robot |
| GPT-5.1 personalities | Efficient · Professional · Nerdy |
| Deprecated features | Deep research tool · Study and learn · All |
Google — Gemini system prompts
| Model | Prompt |
|---|---|
| Gemini 3.8 Flash | Gemini 3.8 Flash system prompt |
| Gemini 3.1 Pro | Gemini 3.1 Pro system prompt · API |
| Antigravity CLI | Antigravity CLI system prompt |
| Gemini 3.7 Flash | Gemini 3.7 Flash system prompt |
| Gemini 3.5 Flash | Gemini 3.5 Flash system prompt · AI Studio |
| 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 |
Older models & variants
| Model | Prompt |
|---|---|
| Gemini 2.5 Pro | API · Webapp · Guided learning |
| Gemini 2.5 Flash | Image preview |
| Gemini 2.0 Flash | Webapp |
xAI — Grok system prompts
| Model | Prompt |
|---|---|
| Grok 4.7 | Grok 4.7 system prompt (Grok CLI) |
| Grok 4.6 | Grok 4.6 system 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 |
| Grok Bot | Grok Bot system prompt |
Older versions
| Model | Prompt |
|---|---|
| Grok 4.1 Beta | Grok 4.1 Beta system prompt |
| Grok 4 | Grok 4 system prompt · API |
| Grok 3 | Grok 3 system prompt |
| Grok Account | Grok account system prompt |
| Grok Personas | Grok persona prompts |
| Safety Instructions | Grok safety instructions |
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 |
More products
| Product | Prompt |
|---|---|
| Brave Search | Brave Search system prompt |
| Character AI | Character AI system prompt |
| Confer | Confer system prompt |
| Fellou Browser | Fellou browser system prompt |
| Gizmo AI | Gizmo AI system prompt |
| Hermes | Hermes system prompt |
| Indus AI | Indus AI system prompt |
| Kagi Assistant | Kagi assistant system prompt |
| MiniMax M2.5 | MiniMax M2.5 system prompt |
| Proton Lumo AI | Proton Lumo AI system prompt |
| Raycast AI | Raycast AI system prompt |
| Sesame AI Maya | Sesame AI Maya system prompt |
| Stack Overflow AI Assist | Stack Overflow AI Assist system prompt |
| t3.chat | t3.chat system prompt |
| t3 Code | t3 Code system prompt |
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