Cogni — Your Thinking Companion

What it does

Cogni is a browser extension that sits on top of ChatGPT and Claude and intercepts a prompt before it sends, if it looks like you're handing real thinking to the model. A short reflection question appears first. Your take, in your own words. Then the AI answers, and you've got something of your own to weigh it against. Made for people whose work is supposed to sound like them, not like everyone else's ChatGPT output. Quiet by default, never gamified, and it stays out of your way on lookups.

Researchers found that AI isn't harmful on its own, but the moment you use it changes everything. Reach for it before forming your own view, and your brain never does the hard part at all. Over time, skipping that effort quietly erodes the ability to think independently, what researchers call cognitive decline . Ten peer-reviewed studies, published 2024–2026, each one a click away. It fits right into how you already use ChatGPT and Claude, no new habits, no extra tabs. When you ask something worth thinking through — a decision, a tradeoff, a judgement call — Cogni steps in before the AI answers and asks what you think. Simple lookups pass straight through, untouched. Once you've written…from thinkwithcogni.com

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