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README
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 |
|---|---|---|
| Claude Sonnet 5 | July 1, 2026 | System prompt |
| Claude Design (Opus 4.8 — full prompt + 48 tools + 16 skills + 9 starter sources) | June 26, 2026 | System prompt |
| GitHub Copilot for macOS (app) | 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 |
Anthropic — Claude
| Model | Prompt |
|---|---|
| Claude Fable 5 | System prompt |
| Claude Opus 4.8 | System prompt |
| Claude Sonnet 5 | 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
Core symbols most depended-on inside this repo
oklchcalled by 7
Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.py
oklch
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.js
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.py
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.js
contrast
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.py
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.py
deltaE
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.py
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Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.js
Shape
Languages
TypeScript58%
Python42%
Modules by API surface
Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.js17 symbols
Anthropic/Claude Code/bundled-skills/dataviz/scripts/validate_palette.py15 symbols
Anthropic/Claude Code/bundled-skills/deep-research/scripts/workflow-script.js4 symbols
For agents
$ claude mcp add system_prompts_leaks \
-- python -m otcore.mcp_server <graph>