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Google-Extended vs OAI-AdsBot

Google-Extended and OAI-AdsBot compared on 10 documented fields, from 16 claims, last verified 2026-09-13.

FieldGoogle-ExtendedOAI-AdsBotComparison
honours_crawl_delayn/anot_documenteddifferent
publishes_ip_listnoyesdifferent
purpose_documentedpolicy_onlyadsdifferent
respects_robots_txtn/anot_documenteddifferent
robots_token_differs_from_uayesnot documenteddifferent
scope_of_crawlingnot documentedlimited to submitted ad landing pagesdifferent
separate_search_and_training_tokensyesnot_documenteddifferent
user_agent_string_fullnot documentedMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbotdifferent
verifiable_by_rdnsn/anot_documenteddifferent
what_it_controlsGemini model training and grounding, not Search inclusionnot documenteddifferent

Differences

FieldGoogle-Extended statementOAI-AdsBot statement
honours_crawl_delayGoogle does not publish any Crawl-delay behaviour for the Google-Extended token.OpenAI does not publish whether OAI-AdsBot honours the robots.txt Crawl-delay directive.
publishes_ip_listGoogle publishes no IP list for Google-Extended because Google-Extended has no separate HTTP request user agent string.OpenAI publishes the IP address ranges used by OAI-AdsBot as a JSON file at https://openai.com/adsbot.json.
purpose_documentedGoogle-Extended is a standalone product token that controls whether Google uses crawled content to train Gemini models.OAI-AdsBot visits landing pages submitted as ads on ChatGPT to check compliance with OpenAI policies.
respects_robots_txtGoogle-Extended is a robots.txt token that publishers set to control use of crawled content for Gemini training.OpenAI does not publish whether OAI-AdsBot honours robots.txt disallow rules.
robots_token_differs_from_uaGoogle-Extended is a robots.txt control token and does not correspond to a crawler user agent string.not documented
scope_of_crawlingnot documentedOAI-AdsBot visits only pages submitted as ads on ChatGPT.
separate_search_and_training_tokensGoogle-Extended controls Gemini training use only and does not affect inclusion in Google Search.OpenAI does not document OAI-AdsBot as part of a search and training token split.
user_agent_string_fullnot documentedOAI-AdsBot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot.
verifiable_by_rdnsGoogle does not publish a reverse-DNS verification method for Google-Extended.OpenAI does not publish a reverse-DNS verification method for OAI-AdsBot.
what_it_controlsGoogle-Extended controls AI training and grounding in Google systems and does not control Google Search inclusion.not documented

Sources