Chorus — Every AI, one answer

You already pay for ChatGPT Plus, or Claude, or Gemini. Maybe all of them. But you still ask them one at a time, copy-paste between tabs, and eyeball which answer to trust. Chorus is the browser-driven sibling of Quorum: it asks all five at once — using the accounts you already have — and hands you a single merged answer.

Why Chorus

Quorum fans your question out to five providers through paid API keys. Chorus does the same fan-out-and-consolidate, but swaps the transport: instead of API keys, it drives your existing logged-in web sessions — ChatGPT, Claude, Gemini, Perplexity and Grok — inside embedded webviews, right on their own websites. So there are no API keys, nothing metered, and no usage bill. Chorus itself is free. One question goes to all five models, and one of them cross-checks the rest and merges everything into a single, clear report — so you get the breadth of five opinions with the simplicity of one answer.

What you can do

Ask five AIs with one prompt. Type a question once and Chorus sends it to ChatGPT, Claude, Gemini, Perplexity and Grok — one after another, on their own sites, using the logins you already have. No more tab-hopping and copy-paste.

Get one answer you can trust. Pick which model writes the final summary. It cross-checks every response, flags where the models agree, where they conflict, and what only one of them said — then writes a single highlighted merged report where the key points and sections stand out at a glance.

See who said what. Flip to the Compare view to read all five answers side by side alongside the merged summary — so you can always trace the final answer back to its sources and see exactly where the models diverge.

Keep every run. Local History saves every run on your Mac. Reopen any past report, reread the side-by-side answers, and reuse its prompt whenever you want. Nothing is stored anywhere but your own machine.

Built for

Anyone who pays for more than one AI and wants them to work together instead of in separate tabs. Researchers and writers who want a second — and third, and fourth — opinion cross-checked automatically. Developers and power users who want consensus and to see exactly where the models disagree. And privacy-conscious people who don't want a middleman between them and the AIs they already use.

Privacy and trust

Chorus runs entirely on your Mac. It drives the same AI websites you already use — your question goes only to them, never through us. There's no Chorus account, no backend, and no telemetry. Everything, including your run History, stays local. Because it reuses your existing logged-in sessions, there are no API keys to manage and nothing metered.

Get the app

Free — download now. Chorus ships as an Apple-notarized, universal .dmg (Apple Silicon + Intel) — download it from Gumroad, drag it to Applications, sign into the AIs you want once inside the app, and start asking. No license key, no trial, no unlock. Requires macOS 13 (Ventura) or later.

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