Install the Chrome extension

Quick start (4 steps)

1. Install the Chrome extension — Get it from the Chrome Web Store. It also works in Edge, Brave, Comet, and Samsung Internet.
2. Pin Qorpus — Click the puzzle-piece Extensions icon in your toolbar and Pin Qorpus for quick access.
3. Sign into AI services — Open ChatGPT, Gemini, Claude, Perplexity, and Grok in your desktop browser and log in with your existing accounts. Qorpus uses your sessions — it is not a proxy API.
4. Compare your first prompt — Open Qorpus from the toolbar, or use the compare dock at qorpus.ai/compare. Type a prompt and click Compare.

Works with the AIs you already use

Sign into these services once in your desktop browser. Qorpus sends one prompt to all of them and lays the answers side by side — no API keys, no copy-paste.

ChatGPT

Gemini

Claude

Perplexity

Grok

Compatible desktop browsers

Install once from the Chrome Web Store. The same extension works in:

Chrome

Edge

Brave

Comet

Samsung Internet

Troubleshooting

Compare asks you to install the extension

The compare dock at qorpus.ai launches comparisons through the Chrome extension. Install Qorpus first, then refresh and try again.

An AI service did not respond

Make sure you are signed into that service in a normal desktop browser tab. Qorpus uses your existing session — if you are logged out, that model cannot answer.

Privacy reminder

Qorpus runs in your desktop browser. Comparisons use your existing AI accounts. We do not route prompts through a proxy API, and your data stays on your device. Read our Privacy Policy.

On mobile?

Qorpus compares AIs in your desktop browser today. On mobile? Join the waitlist — we're building the same compare workflow for phones.