GPTBot vs OAI-AdsBot

GPTBot and OAI-AdsBot compared on 9 documented fields, from 16 claims, last verified 2026-09-13.

Field	GPTBot	OAI-AdsBot	Comparison
honours_crawl_delay	not_documented	not_documented	same
publishes_ip_list	yes	yes	same
purpose_documented	training	ads	different
respects_robots_txt	yes	not_documented	different
robots_txt_fetch_marker	yes	not documented	different
scope_of_crawling	not documented	limited to submitted ad landing pages	different
separate_search_and_training_tokens	yes	not_documented	different
user_agent_string_full	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; GPTBot/1.4; +https://openai.com/gptbot	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot	different
verifiable_by_rdns	not_documented	not_documented	same

Differences

Field	GPTBot statement	OAI-AdsBot statement
purpose_documented	GPTBot crawls content that may be used to train OpenAI generative AI foundation models.	OAI-AdsBot visits landing pages submitted as ads on ChatGPT to check compliance with OpenAI policies.
respects_robots_txt	GPTBot honours robots.txt rules that webmasters set for the GPTBot token.	OpenAI does not publish whether OAI-AdsBot honours robots.txt disallow rules.
robots_txt_fetch_marker	OpenAI may add a robots.txt marker to the GPTBot user agent string when GPTBot fetches robots.txt files.	not documented
scope_of_crawling	not documented	OAI-AdsBot visits only pages submitted as ads on ChatGPT.
separate_search_and_training_tokens	OpenAI separates search and training controls into two robots.txt tokens: OAI-SearchBot for search and GPTBot for training.	OpenAI does not document OAI-AdsBot as part of a search and training token split.
user_agent_string_full	GPTBot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; GPTBot/1.4; +https://openai.com/gptbot.	OAI-AdsBot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot.