Extracted system prompts
9/12/2026, 10:19:53 PM · updated 9/12/2026, 10:33:52 PM · Source
This repository provides a comprehensive collection of leaked and extracted system prompts from major AI providers like Anthropic, OpenAI, Google, and xAI, revealing their hidden rules, tools, and instructions.
GitHub - asgeirtj/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.
GitHub - asgeirtj/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.
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
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
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
Contact
Star History
Learning map
Stage 1: Fundamentals of System Prompts
- What is a system prompt and how it shapes AI behavior.
- Understanding the difference between user instructions and developer-level constraints.
Stage 2: Analyzing Extracted Prompts
- Examining how major models handle safety, tool usage, and persona definitions.
- Comparing structural differences across providers like Anthropic, OpenAI, and Google.
Stage 3: Applying Insights to Custom Applications
- Using leaked patterns to improve your own custom GPTs and system instructions.
- Designing robust guardrails and subagent frameworks inspired by enterprise models.
Get hands-on — step by step
- Clone or visit the GitHub repository tracking leaked system prompts to examine a target model's raw file.
- Select a specific system prompt, such as one for a coding assistant or a chat interface.
- Read through the instruction hierarchy to identify constraints, personality directives, and tool-use permissions.
- Draft your own customized system prompt incorporating structural patterns learned from the extracted files.
Top 3 sources
- 1GitHub: asgeirtj/system_prompts_leaks
The primary repository containing extracted system prompts from Anthropic, OpenAI, Google, and others.
https://github.com/asgeirtj/system_prompts_leaks
- 2Anthropic Documentation on System Prompts
Official guide on how to effectively structure system prompts for Claude models.
https://docs.anthropic.com/en/docs/build-with-claude/system-prompts
- 3OpenAI Prompt Engineering Guide
Best practices and strategies for getting better results from language models through system-level guidance.
https://platform.openai.com/docs/guides/prompt-engineering
Links are AI-suggested — worth a quick sanity check before diving in.