What is GPTBot?

How often is GPTBot impersonated?

For the median organisation, 94% of requests claiming to be GPTBot failed verification.

Measured between 14 July 2026 and 10 October 2026 across organisations protected by Centinel. We only publish a share when at least five organisations each saw enough of these requests. Pooled across all of their requests, the share was 3%: a few large organisations carry most of the traffic, so the median organisation is the better guide to what yours will see.

This directory measures requests between 14 July 2026 and 10 October 2026. The fake crawler report covers its own, earlier window (late June to 21 September 2026), so its figures differ from the ones here. Read it for the method.

Have a request that claims to be GPTBot? Check its IP address.

Should you block GPTBot?

Allow it if

you are content for your pages to be used in OpenAI model training.

Block it if

you do not want your content used for training, while still allowing OAI-SearchBot so ChatGPT search can cite you.

What blocking changes

It tells OpenAI not to use your content for training. OpenAI documents GPTBot, OAI-SearchBot and ChatGPT-User as independent settings, so blocking GPTBot does not remove you from ChatGPT search.

To block it, add this group to your robots.txt. OpenAI uses the GPTBot robots.txt token to control training use.

User-agent: GPTBot
Disallow: /

robots.txt only asks. It does nothing against a client that ignores it or only pretends to be GPTBot. Stopping those takes verification at your edge.