ChatGPT Agent
The robots.txt token for ChatGPT agent mode, where the assistant operates a browser to complete tasks. Published for declaration only - agent traffic presents as a browser session, so this token can be disallowed but never observed in a server log.
Verification
Operator documentation: https://platform.openai.com/docs/bots
A user agent is a claim, not a proof: any client can send any name. Where an operator publishes IP ranges, a reverse lookup is the only way to tell a real visit from an impersonation.
Seen by Baseline
Requests from this bot across sites tracked by Baseline, last 30 days. Aggregated over - sites, never reported per site.
Last updated 2026-09-04. Written and maintained by Baseline Labs.