Add the extension
Install ChatRound from the Chrome Web Store. It asks once, in one dialog, for access to ChatGPT, Claude, Gemini and chatround.ai.
- ChatRound
- Check an answer
- Gemini
Gemini · gemini.google.com
How to fact-check a Gemini answer
To fact-check a Gemini answer, have AIs from other companies go through it claim by claim, then look up anything they flag in a primary source. With the ChatRound Chrome extension that takes one click: a Check button sits under every answer on gemini.google.com, the report opens in Chrome's side panel next to the chat, and the corrected text goes into Gemini's message box — never sent — so Gemini can fix its own answer.
WITH THE EXTENSION
Checking an answer on gemini.google.com
Click Check under the answer
A Check button appears under each Gemini answer. To check only part of one, select the text, right-click and choose “Check with ChatRound”.
Read the report in the side panel
Two reviewers, by default from companies other than Google, each answer the question themselves, then go through Gemini's answer. The report gives a verdict, quotes each wrong claim with the reviewers' reasons, lists what was missed and writes a corrected answer.
Send the fix back
“Put it in Gemini's message box” fills the chat's message box with the corrections. Nothing is sent: you read it, edit it if you like, and send it yourself.
PRIVACY
What leaves the page
What leaves the page
Only the answer you click Check on, the question above it and the model's name — never the page address or the rest of the conversation. The extension hands it to chatround.ai inside Chrome, not in a URL.
No extension? Paste it
Copy the answer, or the whole conversation, from Gemini and paste it at chatround.ai. Share links can't be read from here, so paste the text itself.
EXAMPLE
A Gemini answer, checked
CODE
Top 3 salaries per department, ties included: an AI's SQL, checked
Gemini 2.5 Flash-Lite wrote a DENSE_RANK() query. Two reviewers went through it: it is correct, with caveats about NULL salaries and database versions.
Read the checkCOMMON QUESTIONS
Before you trust an answer
Why not ask Gemini to check itself?
You can, and it sometimes catches a slip. But a model rereading its own answer tends to reuse the reasoning that produced it, while a reviewer from another company works the question out separately. For a Gemini answer, ChatRound's default reviewers are not Google's models, and neither is the model that writes the report.
Does it work with every Gemini model?
Yes. It checks the answer on the page, whichever Gemini model wrote it.
Does it send anything to Gemini for me?
No. The corrected text is placed in Gemini's message box and stays there until you send it.
Is it free?
Free to start: the free plan includes a monthly allowance of checks, and Pro raises it. The extension itself is free.
Checking another AI?
How to fact-check a ChatGPT answer · How to fact-check a Claude answer
YOUR TURN
Check the answer you're about to rely on.
Paste an answer from ChatGPT, Claude, Gemini or any AI. Two AIs from other companies go through it and show you what's wrong.
It puts a Check button under every ChatGPT, Claude and Gemini answer.