How do I compare answers from ChatGPT, Claude, Gemini, and Grok?

To compare answers from ChatGPT, Claude, Gemini, and Grok, ask all of them the exact same question independently, in separate chats, without letting any see the others' answers. Then read the results by looking for two things: where they all agree, and where they diverge. Agreement on the same evidence is a good sign. Divergence is the useful part, it marks the exact claim that is uncertain or contested and needs a real source or your judgment. Do not just count votes, because models can be wrong together. Weigh claims by whether they can name a source.

By Jason Santiago, author of Let the AI Be Smart. As of 2026-07-06.

The setup

Open all four in separate tabs: ChatGPT, Claude, Gemini, Grok. Paste the identical question and context into each. Keep them isolated at first. Collect the four answers side by side.

What to actually look at

Do not skim for the answer you like. Look at the shape of the room:

Where they all agree on the same reasoning and the same sources: this is your solid ground.
Where they diverge: this is the signal. A fork between models almost always sits on top of the real question, the assumption that is not settled, the fact nobody can source, the tradeoff with no clean answer. That is where you spend your attention.
Which claims can name a source you can open. Weigh those over claims that just assert confidently, even if more models repeated the assertion. Agreement is not verification.

Turning comparison into a verdict

The disciplined version does not stop at comparing. You hand each model the others' answers so they can challenge and revise, then feed everything to one model you trust to write the final verdict. That is the Council Method, and it is exactly what multi-model AI verification means in practice.

The free Council Protocol gives you the copy-paste prompts, and the full method is in Let the AI Be Smart.