# OAI-AdsBot vs PerplexityBot

OAI-AdsBot and PerplexityBot compared on 10 documented fields, from 17 claims, last verified 2026-09-13.

| Field | OAI-AdsBot | PerplexityBot | Comparison |
| --- | --- | --- | --- |
| cites_sources | not documented | yes | different |
| honours_crawl_delay | not_documented | not_documented | same |
| publishes_ip_list | yes | yes | same |
| purpose_documented | ads | search | different |
| reads_llms_txt | not documented | not_documented | different |
| respects_robots_txt | not_documented | yes | different |
| scope_of_crawling | limited to submitted ad landing pages | not documented | different |
| separate_search_and_training_tokens | not_documented | not_documented | same |
| user_agent_string_full | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; OAI-AdsBot/1.0; +https://openai.com/adsbot | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; PerplexityBot/1.0; +https://perplexity.ai/perplexitybot) | different |
| verifiable_by_rdns | not_documented | not_documented | same |

## Differences

| Field | OAI-AdsBot statement | PerplexityBot statement |
| --- | --- | --- |
| cites_sources | not documented | Perplexity links to the websites that PerplexityBot surfaces in Perplexity search results. |
| purpose_documented | OAI-AdsBot visits landing pages submitted as ads on ChatGPT to check compliance with OpenAI policies. | PerplexityBot surfaces and links websites in Perplexity search results. |
| reads_llms_txt | not documented | Perplexity does not publish whether PerplexityBot reads llms.txt files. |
| respects_robots_txt | OpenAI does not publish whether OAI-AdsBot honours robots.txt disallow rules. | PerplexityBot honours robots.txt rules that webmasters set for the PerplexityBot token. |
| scope_of_crawling | OAI-AdsBot visits only pages submitted as ads on ChatGPT. | not documented |
| user_agent_string_full | 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. | PerplexityBot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; PerplexityBot/1.0; +https://perplexity.ai/perplexitybot). |

## Sources

- https://developers.openai.com/api/docs/bots
- https://docs.perplexity.ai/docs/resources/perplexity-crawlers
- https://openai.com/adsbot.json
- https://www.perplexity.ai/perplexitybot.json