Rattlesnakes By Mail

GPTBot vs OAI-AdsBot

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

How many of the compared fields have the same answer for both crawlers, and how many differ.

GPTBot and OAI-AdsBot, fields comparedGPTBot and OAI-AdsBot, fields compared. Different is the largest with 6 fields, out of 9 fields in total.Same: 3 fieldsSame3Different: 6 fieldsDifferent6
GPTBot and OAI-AdsBot, fields compared. Different is the largest with 6 fields, out of 9 fields in total. Source: each vendor's own crawler documentation, quoted and dated on every claim page.
FieldGPTBotOAI-AdsBotComparison
honours_crawl_delaynot_documentednot_documentedsame
publishes_ip_listyesyessame
purpose_documentedtrainingadsdifferent
respects_robots_txtyesnot_documenteddifferent
robots_txt_fetch_markeryesnot documenteddifferent
scope_of_crawlingnot documentedlimited to submitted ad landing pagesdifferent
separate_search_and_training_tokensyesnot_documenteddifferent
user_agent_string_fullMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; GPTBot/1.4; +https://openai.com/gptbotMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbotdifferent
verifiable_by_rdnsnot_documentednot_documentedsame

Differences

FieldGPTBot statementOAI-AdsBot statement
purpose_documentedGPTBot 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_txtGPTBot 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_markerOpenAI may add a robots.txt marker to the GPTBot user agent string when GPTBot fetches robots.txt files.not documented
scope_of_crawlingnot documentedOAI-AdsBot visits only pages submitted as ads on ChatGPT.
separate_search_and_training_tokensOpenAI 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_fullGPTBot 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.

Sources