Multi-AI Chat Broadcaster

One input → four AIs (ChatGPT, Gemini, DeepSeek, Claude). 2x2 compare. Free.

## Stop switching tabs to ask the same question four times. **Multi-AI Chat Broadcaster** lets you type one prompt and send it to **ChatGPT, Gemini, DeepSeek, and Claude** at the same time. Each AI keeps its own login — your browser handles auth, and your data never leaves your machine. ### Why people use it - ⚡ **One input, four answers** — perfect for comparing how different models handle the same prompt - 📊 **2×2 comparison view** — see all four replies side by side, with live token-per-second speed per model - 🤖 **Optional auto-send** — fill in one click, or tick the box to send immediately - 📋 **Markdown export** — copy all four responses as a single, well-formatted Markdown document - 🔒 **100% local** — no servers, no telemetry, no account required ### How to use 1. Open ChatGPT, Gemini, DeepSeek, and Claude in four tabs (sign in once per service — your logins are kept by your browser, not the extension) 2. Click the extension icon, type your question, choose your targets 3. Click **Fill** to paste into all selected tabs, or tick **Auto-send** to send immediately 4. Open the **2×2 Compare** view to watch all four models stream their replies with live t/s metrics ### Privacy The extension only injects scripts into the four AI sites listed in its `host_permissions` (chatgpt.com, gemini.google.com, chat.deepseek.com, claude.ai). It reads the latest reply from each tab to power the comparison view, but never transmits your data anywhere. No accounts, no analytics, no tracking. The full privacy policy is linked from the Chrome Web Store listing. ### Free and open source Try it side by side with the model you already use — you'll be surprised how much time you save.