asgeirtj/system_prompts_leaks

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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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Open Source Agent Analytics

Understand your agents in production

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.

Last Commit

Most recent additions/changes

What	Date	Link
Claude Code headless (Fable 5.1)	September 5, 2026	Claude Code headless system prompt (Fable 5.1)
Codex GPT-6-Astra	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
Codex GPT-5.6 (Sol variant)	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
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 5.1	Claude Fable 5.1 system 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 5.1)	Claude Code system prompt (Fable 5.1)
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 in Chrome MCP server system prompt
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

Old models, tools & deprecated features


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
Deprecated features	GPT-5 personalities · GPT-5.1 personalities · Deep research tool · Study and learn · All
GPT-5.1 (old)	Professional

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

Older models & variants


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 4.5	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

Older versions


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


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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