How It Works

Several AIs answer on their own.
One answer you can check.

Synero is a chat that asks several AIs the same question. Here is how it works, step by step.

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01Pick your models, then ask

Choose up to four AIs (GPT, Claude, Gemini, Grok) with the buttons above the message box, or start from a preset. You can attach files or images and turn on private mode. Then send.

Solo: One model, a normal chat
Duel: GPT and Claude side by side
Council: All four, balanced for speed
Deep: All four flagship models

02The models answer independently

Your question goes to every AI you picked at the same time. Each one answers on its own, without seeing the others, and you can stop at any point. With one AI picked, it works like a normal chat.

03Read where they agree and disagree

With two or more AIs, you first see an agreement score from 0 to 100, labeled Strong, Partial, or Divided. Under it are the points they agree on and the topics where they differ, with each AI's view. Agreement is a good sign. Disagreement tells you what to double-check.

04Get a combined answer, then keep asking

Below that is one combined answer that keeps the strongest points and says where it is unsure. Each AI's full answer is one tab away. Ask a follow-up and the chat remembers everything. You can also regenerate an answer or edit your last message. Developers can still run the four-persona council (Architect, Philosopher, Explorer, Maverick) through the API.

See it in 30 seconds

GPTClaudeGeminiGrok
Try it free

Why compare AI answers across models

The model that writes the combined answer was picked by a blind test

We ran a blind eval of 26 candidate model and reasoning settings for the combined answer, with judges from a different model family than the writer. The winner is what writes your combined answer today.

Single models hallucinate

Every AI model makes confident mistakes. When models from different labs and training runs agree, the answer is much more likely to be correct. When they disagree, you know exactly where to dig deeper.

Different models have different strengths

GPT, Claude, Gemini, and Grok are trained by different labs and fail in different ways. Synero lets you ask all four at once.

One combined answer beats four side by side

Synero does not just show answers side by side. It scores agreement, names the exact points of disagreement, and writes one combined answer, with every original answer one tab away.

Ready to try it?

Free to try: 3 questions with no card, then $10/month with $10 of usage included, or pay as you go with credit packs from $5, no subscription.

Next: browse shared answers, see where AI models disagree, or read about security and privacy.