DeepClaude — Claude‑skin overlay for chat.deepseek.com

Transform DeepSeek’s interface into a full‑featured, dark/light Claude.ai clone.
DeepSeek’s auth, streaming, and API keep running underneath – the script just wraps it with Anthropic’s design, model mapping, and quality‑of‑life tools.

✨ What it does

• Complete visual replacement – Hides DeepSeek’s DOM and paints a pixel‑perfect Claude.ai interface (sidebar, chat bubbles, input dock, model menu, incognito mode, etc.).
• Full model & effort mapping –
  Opus 4.8 → deepseek-reasoner + thinking
  Sonnet 4.6 → deepseek-chat + optional thinking
  Haiku 4.5 → deepseek-chat (no thinking, fast)
• Effort levels (Low / Medium / High / Extra / Max) – inject reasoning intensity prompts and toggle DeepThink automatically.
• System prompts per model – Separate role directives for Opus / Sonnet / Haiku.
• Web search toggle – Mirrors DeepSeek’s web search switch.
• Real‑time message mirroring – Streamed tokens appear instantly, with full Markdown + KaTeX + table support.
• Message actions – Copy / Retry / Edit (branching) / Version arrows (‹ N/M ›).
• Sidebar integration – Recents list (rename / pin / delete from context menu).
• Chats history panel – Full‑page searchable conversation list (⌘/Ctrl+K style).
• Incognito / temporary chat – One‑click ghost mode; chats are auto‑deleted on exit/reload.
• System prompt editor – Per‑model, prepended as a hidden persona directive.
• Dark / Light / System theme – Follows DeepSeek’s theme or override manually.
• Favicon & title rewriting – Shows Claude’s sparkle icon and “... - Claude” tab name.

🚀 Installation

1. Install a userscript manager
   Tampermonkey (Chrome, Firefox, Edge, Safari)
   Violentmonkey (Chrome, Firefox)

2. Add the script

   • Drag & drop deepseek-model-router.user.js onto your extensions page, or
   • Click “Create a new script” and paste the full content.

3. Visit https://chat.deepseek.com/ – the interface will instantly turn into Claude.

✅ The script persists your preferences (model, effort, thinking, web search, system prompts, theme) across reloads.

🧩 Usage

Model selector

• Click the model button (e.g. “Sonnet 4.6 · High”) near the send icon.
• Pick Opus / Sonnet / Haiku.
• Hover “Effort” for a sub‑menu – choose intensity.
• Toggle Thinking on/off.

Web search

• Press the + button left of the textarea → “Web search”.

System prompts

• Sidebar → “System prompt” (pencil icon).
• Edit per model independently. Saved instantly.

Incognito chat

• Top‑right ghost button (👻).
• Turns the whole app into a rounded frame with “Incognito chat” bar.
• No conversation is saved – exiting deletes the session.

Message toolbar

• Hover any user or assistant bubble to reveal:
  Copy · Retry (regenerate) · Edit (user messages) · Version arrows (when multiple branches exist).

Sidebar & Recents

• New chat – starts a fresh conversation.
• Chats – opens the full‑page history panel (searchable).
• Code / Write / Learn – shortcuts that pre‑fill the input.

Account menu

• Click your avatar at the bottom left.
• Switch theme, open DeepSeek’s settings / help / download, or log out.

⌨️ Keyboard shortcuts (in the input box)

Key	Action
Enter	Send message
Shift + Enter	New line

🎨 Theme behaviour

The script respects DeepSeek’s theme setting (light/dark/system) by default.
Override manually via the account menu → “Light mode” / “Dark mode”.

⚠️ Notes

• The script does not alter your DeepSeek account, API keys, or data. It only overlays and bridges the UI.
• All messages are still processed by DeepSeek’s models – the mapping simply changes which internal model is called.
• Some DeepSeek‑specific features (e.g. “Upload image” text extraction) work fine but appear as native Claude‑style file chips.
• If you see any styling glitches, try reloading the page – the script re‑applies its CSS instantly.

🔧 Troubleshooting

Problem	Likely fix
Script doesn’t load	Check Tampermonkey is enabled and the script’s @match is *://chat.deepseek.com/*.
Messages not appearing	Wait 1–2 seconds – DeepSeek’s virtual list may be lazy‑loading. Scroll up slightly.
Model selector has no effect	Open browser console – verify no fetch interception errors. The script rewrites API bodies.
Theme doesn’t match system	Toggle “Light mode” once from the account menu, then set back to “Auto”.
Incognito bar stays after exit	Refresh the page – the temporary session is cleaned up on load.

📄 License

MIT – feel free to fork and adapt.

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Built with ❤️ for Anthropic’s design and DeepSeek’s powerful models.
Not affiliated with Anthropic or DeepSeek.