How do I stop ChatGPT agreeing with everything I say?

Ask for disagreement on purpose. Pick a more direct base style, add a standing instruction to point out problems, and phrase your questions so agreeing isn't the easy answer.

Why it happens

ChatGPT tries to be helpful and encouraging, and the way a question is asked shapes the answer. "This is a good plan, right?" invites a yes. A request with no clear ask for criticism often gets support rather than scrutiny.

Choose a more direct base style

On the web, select your profile icon, choose Personalization, and use the dropdown next to Base style and tone. On iPhone and Android, open Settings, go to Personalization and use Base style and tone. OpenAI describes Candid as direct and encouraging, with honest feedback, clear callouts of risks, gaps and trade-offs, and less small talk. That is the closest built-in match.

Add a standing instruction

On the web or desktop app, open Settings, select Personalization, make sure Enable customization is on, and type into the Custom Instructions field. On iPhone and Android, OpenAI's help page lists the same steps under Settings, then Customize ChatGPT. For example:

If you think I'm wrong, say so plainly and explain why.
Don't open with praise.
When I share a plan, list the biggest risks before anything else.

Ask questions that don't lead

"What is the strongest argument against this?"
"What would have to be true for this to fail?"
Give it two options and ask it to compare them, without saying which one you prefer.
"Rate this draft out of ten and tell me the one change that would help most."

When a chat starts agreeing again

Say so directly: "Stop agreeing by default. Tell me what's weak here." If a long chat keeps sliding back, start a new one. Also check Settings, then Personalization, then Memory, in case a saved preference asks for encouragement over honesty.

Keep your own judgment

Disagreement isn't automatically right either. Treat pushback as a list of things to check, not a verdict, and ask for the reasoning behind any point you aren't sure about.

Sources

Checked against OpenAI's help pages on 17 October 2026: Customizing Your ChatGPT Personality, ChatGPT Custom Instructions, Memory in ChatGPT. ChatGPT changes often, so if your screen looks different, trust your screen.

Want the step-by-step version? The Tone Fix: Make ChatGPT Sound Like a Person is a short PDF guide for $7.

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