Free Chrome extension

Every answer has a verso

You read one model's answer and move on. Verso shows you what a different model said to the same question — right where you're already reading. No copy-paste. No second tab.

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Model A Recto

You asked: Which noise-cancelling headphones should I buy?

For most people the Sony WH-1000XM5 is the right call. The noise cancelling is the best on the market, the app gives you real control, and battery life clears thirty hours.

Get them. You won't think about it again.

Turn the page 1 of 2
Model B Verso

Same question: Which noise-cancelling headphones should I buy?

Depends on your head, honestly. The Sony wins on paper. But if you wear them eight hours a day, the Bose QuietComfort Ultra is the pair you'll actually keep on.

Ask yourself how long you wear them before you ask which cancels more.

Turn back They disagree
How it works

A model's confidence tells you nothing about whether it's right.

A second answer does. Verso sits in the margin of whatever assistant you already use and gives you the other side of the page.

STEP 01

Install once

Verso opens as a panel next to ChatGPT, Claude, Gemini and Perplexity. Nothing to configure.

STEP 02

Ask normally

Keep working the way you always do. When an answer matters, Verso taps you on the shoulder.

STEP 03

Read the verso

Your question goes to a second model. Two answers, side by side. You decide which one earned it.

Second opinions from
GPT-5.5
Claude Opus 4.8
Gemini 3.1 Pro
Grok 4.1
DeepSeek V4
Mistral Large
Perplexity
What we learn

Verso is free because preference is worth something.

Every time you pick one answer over the other, you settle a question the labs can't answer on their own: which model is actually useful on real work.

We aggregate that signal and sell the measurement — not your conversations. That's the whole business, and we'd rather you read it here than find it somewhere else.

Which answer you preferredAggregated
Which models we comparedAggregated
The text of your conversationsNever sold
Your name, email, accountNever collected
For AI labs and research teams

Read the other side.

It takes one click, and the next time a model sounds sure of itself, you'll know whether it should be.

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