As seen in The Washington Post: See the hidden rules behind AI. Then use them to rewrite this article. (May 11, 2026)

System Prompts Leaks

The purpose of this repo is to document the System Prompt instructions for all the AI chatbots out there - Claude, ChatGPT, Gemini etc.

🆕 Diff: Claude Opus 4.8 → Claude Fable 5 — see exactly what changed in the claude.ai system prompt for Anthropic's newest model

Recently Updated

What	Date	Link
GitHub Copilot for macOS (app)	June 18, 2026	System prompt
Claude Design (full built-in skills)	June 18, 2026	System prompt
GPT-5.5 Codex (full prompt)	June 18, 2026	System prompt
Claude Fable 5	June 9, 2026	System prompt · Diff vs Opus 4.8
Claude Opus 4.8	June 9, 2026	System prompt · Official
Claude Code Glob & Grep tools	June 9, 2026	Glob · Grep
Claude Code (Opus 4.8)	May 28, 2026	System prompt
Claude Code & Cowork	May 28, 2026	Claude Code · Cowork · Cowork Dispatch
GPT-5.5	May 24, 2026	Thinking · Instant · API · Pro API
Perplexity Computer	May 21, 2026	System prompt
VS Code Copilot Agent	May 21, 2026	System prompt
Docker Gordon AI	May 21, 2026	System prompt
Gemini 3.5 Flash	May 20, 2026	System prompt · AI Studio · Tools
Antigravity CLI	May 20, 2026	System prompt
Zed AI	May 16, 2026	System prompt
Grok Expert	May 11, 2026	System prompt

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Anthropic — Claude

Model	Prompt
Claude Fable 5	System prompt
Claude Opus 4.8	System prompt
Claude Code (Opus 4.8)	System prompt
Claude Opus 4.7	System prompt
Claude Code (Opus 4.6)	System prompt
Claude Opus 4.6	System prompt
Claude Sonnet 4.6	System prompt
Claude.ai	Anthropic Reminders

Integrations, official prompts & older versions

Integrations	Cowork · Cowork Dispatch · Desktop Code · Design · Mobile iOS · In Chrome · For Excel · For Word · In PowerPoint · Default Styles
Claude Code extras	Glob tool · Grep tool · Deferred tools · Docs assistant · Bundled skills
Published (claude_behavior at release date, not updated)	Opus 4.8 · Opus 4.7 · Opus 4.6 · Sonnet 4.6 · All versions
Without tools	Opus 4.6 · Sonnet 4.6
Raw prompts	Opus 4.6 · Opus 4.6 (no tools) · Sonnet 4.6 · Sonnet 4.6 (no tools)
Visualize	Visualization
Opus 4.5	System prompt
Sonnet 4.5	System prompt
Sonnet 4	System prompt
Opus 4.1 Thinking	System prompt
Sonnet 3.7	System prompt · With tools · Full w/ tools · Human-readable

OpenAI — ChatGPT

Model	Prompt
GPT-5.5	Thinking · Instant · API · Pro API · Codex · Friendly · Pragmatic
GPT-5.4	API · Thinking · Codex · Codex Mini
GPT-5.3	Codex · Spark · Codex API · Chat API · Instant
Codex CLI	Per-model prompts · Spark · Plan mode · Personas · Auto-review
Tools	Web search · Deep research · Python · Python code · Canvas · Image gen · Memory · Advanced memory · File search
Policies	Image safety · Automation context

Older models & variants

GPT-5.2	Mini (free) · Thinking · Codex
o4-mini	System prompt · High
o3	System prompt
ChatGPT Atlas	System prompt
GPT-5.1 personalities	Default · Friendly · Professional · Candid · Cynical · Efficient · Nerdy · Quirky
GPT-5	Agent mode · Thinking · Cynic · Listener · Nerdy · Robot · Codex · Codex Mini
GPT-4.5	System prompt
GPT-4.1	Full · Mini
GPT-4o	System prompt · WhatsApp · Advanced voice · Legacy voice
Monday GPT	System prompt
GPT-4o new personality	System prompt
Study and learn	System prompt
Image safety policies	System prompt
API variants	GPT-5 reasoning (high) · o3 high · o3 med · o3 low · o4-mini high · o4-mini med · o4-mini low
Old o4-mini	System prompt
Codex (older)	GPT-5 · GPT-5.1 · GPT-5.1 Codex · GPT-5.1 Mini · GPT-5.1 Max · GPT-5.2 · 5.2 Friendly · 5.2 Pragmatic

Google — Gemini

Model	Prompt
Gemini 3.5 Flash	System prompt · AI Studio · Tools
Gemini 3.1 Pro	System prompt · API
Gemini CLI	System prompt
Antigravity CLI	System prompt
Jules	System prompt

Older models & variants

Gemini 3	Flash · Pro
Gemini Diffusion	System prompt
Google Search AI Mode	System prompt
Gemini YouTube	System prompt
Gemini in Chrome	System prompt
Gemini Workspace	System prompt
Gemini 2.5 Pro	API · Webapp · Guided learning
Gemini 2.5 Flash	Image preview
Gemini 2.0 Flash	Webapp
AI Studio Build	System prompt
Nano / Banana 2	System prompt
NotebookLM	Chat

xAI — Grok

Model	Prompt
Grok Build	System prompt (CLI Agent)
Grok 4.3 Beta	System prompt
Grok 4.2	System prompt
Grok Expert	System prompt

Older versions

Grok 4.1 Beta	System prompt
Grok 4	System prompt · API
Grok 3	System prompt
Grok Account	System prompt
Grok Personas	Personas
Safety Instructions	Post-new

Perplexity

Model	Prompt
Perplexity Computer	System prompt
Comet Browser	System prompt
Voice Assistant	System prompt

Microsoft — Copilot

Product	Prompt
GitHub Copilot	System prompt
VS Code Copilot Agent	System prompt
Copilot CLI	System prompt
Copilot for macOS (app)	System prompt
Copilot in Word	System prompt

Cursor

Product	Prompt
Cursor	System prompt

Meta

Product	Prompt
Meta AI	System prompt

Mistral

Product	Prompt
Le Chat	System prompt

Notion

Product	Prompt
Notion AI	System prompt

Qwen

Product	Prompt
Qwen 3.6 Plus	System prompt

Misc

Product	Prompt
Amp Code (Sourcegraph)	System prompt
Docker Gordon AI	System prompt
ElevenLabs Voice Agent	System prompt
OpenCode	System prompt
Reddit Answers	System prompt
Warp 2.0 Agent	System prompt
Zed AI	System prompt

More products

Brave Search	System prompt
Character AI	System prompt
Confer	System prompt
Fellou Browser	System prompt
Gizmo AI	System prompt
Hermes	System prompt
Indus AI	System prompt
Kagi Assistant	System prompt
MiniMax M2.5	System prompt
Proton Lumo AI	System prompt
Raycast AI	System prompt
Sesame AI Maya	System prompt
t3.chat	System prompt
t3 Code	System prompt

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Contact

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