ThinkShift - Compare 3 AIs with a smart summary and Brainstorming

ThinkShift lets you ask once and instantly compare answers from ChatGPT, Claude, and Gemini—plus a 3-second smart summary of what’s common and what differs. Then tap a button to challenge, expand, or rewrite any answer with another model, without copy-pasting. Built for power users who want faster brainstorming and better decisions.

Hey Product Hunt 👋 I’m Hangyeol, maker of ThinkShift.

If you’ve ever copy-pasted the same prompt across multiple AIs (and still weren’t sure what to trust), I built ThinkShift for you.

What it does

Ask once → get 3 AI answers side-by-side

Get a 3-second smart summary (common points + key differences)

One-tap brainstorming: challenge/expand/rewrite any answer with another model—no copy-paste

Mobile-first carousel UI + searchable history

Who it’s for
Power users, developers, creators, and anyone making decisions with AI.

Pricing

Pro $19/mo (5days Free trial), Ultra $39/mo.

I’d love feedback on:

Which summary format is most useful?

What “one-tap follow-ups” should we add next?

Any missing models you want to compare?

ThinkShift - Compare 3 AIs with a smart summary and Brainstorming

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