{
  "entity_a": {
    "slug": "oai-searchbot",
    "name": "OAI-SearchBot"
  },
  "entity_b": {
    "slug": "perplexity-user",
    "name": "Perplexity-User"
  },
  "fields_documented": 10,
  "claims": 19,
  "last_verified": "2026-09-15",
  "fields": [
    {
      "field": "cites_sources",
      "value_a": "yes",
      "value_b": "yes",
      "claim_id_a": 100,
      "claim_id_b": 109,
      "same": true
    },
    {
      "field": "honours_crawl_delay",
      "value_a": "not_documented",
      "value_b": "not_documented",
      "claim_id_a": 95,
      "claim_id_b": 104,
      "same": true
    },
    {
      "field": "observed_arrival_before_sitemap",
      "value_a": "yes",
      "value_b": null,
      "claim_id_a": 148,
      "claim_id_b": null,
      "same": false
    },
    {
      "field": "publishes_ip_list",
      "value_a": "yes",
      "value_b": "yes",
      "claim_id_a": 96,
      "claim_id_b": 105,
      "same": true
    },
    {
      "field": "purpose_documented",
      "value_a": "search",
      "value_b": "user_fetch",
      "claim_id_a": 98,
      "claim_id_b": 107,
      "same": false
    },
    {
      "field": "reads_llms_txt",
      "value_a": "not_documented",
      "value_b": "not_documented",
      "claim_id_a": 101,
      "claim_id_b": 110,
      "same": true
    },
    {
      "field": "respects_robots_txt",
      "value_a": "yes",
      "value_b": "no",
      "claim_id_a": 94,
      "claim_id_b": 103,
      "same": false
    },
    {
      "field": "separate_search_and_training_tokens",
      "value_a": "yes",
      "value_b": "not_documented",
      "claim_id_a": 99,
      "claim_id_b": 108,
      "same": false
    },
    {
      "field": "user_agent_string_full",
      "value_a": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot",
      "value_b": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Perplexity-User/1.0; +https://perplexity.ai/perplexity-user)",
      "claim_id_a": 102,
      "claim_id_b": 111,
      "same": false
    },
    {
      "field": "verifiable_by_rdns",
      "value_a": "not_documented",
      "value_b": "not_documented",
      "claim_id_a": 97,
      "claim_id_b": 106,
      "same": true
    }
  ],
  "differences": [
    {
      "field": "observed_arrival_before_sitemap",
      "statement_a": "OAI-SearchBot first requested Rattlesnakes By Mail at 2026-09-13T21:41:14Z, before the Rattlesnakes By Mail sitemap was submitted to Bing Webmaster Tools shortly before 2026-09-15T08:38Z and to Google Search Console at 2026-09-15T09:00Z. OAI-SearchBot made 3 requests to Rattlesnakes By Mail between 2026-09-13T20:00Z and 2026-09-15T09:00Z, all 3 to /robots.txt.",
      "statement_b": null,
      "claim_id_a": 148,
      "claim_id_b": null
    },
    {
      "field": "purpose_documented",
      "statement_a": "OAI-SearchBot surfaces websites in search results in ChatGPT search features.",
      "statement_b": "Perplexity-User visits web pages to answer questions that users ask Perplexity.",
      "claim_id_a": 98,
      "claim_id_b": 107
    },
    {
      "field": "respects_robots_txt",
      "statement_a": "OAI-SearchBot honours robots.txt opt-outs set for the OAI-SearchBot token.",
      "statement_b": "Perplexity-User ignores robots.txt rules because a user requests each Perplexity-User fetch.",
      "claim_id_a": 94,
      "claim_id_b": 103
    },
    {
      "field": "separate_search_and_training_tokens",
      "statement_a": "OpenAI separates search and training controls into two robots.txt tokens: OAI-SearchBot for search and GPTBot for training.",
      "statement_b": "Perplexity does not document Perplexity-User as a search or training opt-out token.",
      "claim_id_a": 99,
      "claim_id_b": 108
    },
    {
      "field": "user_agent_string_full",
      "statement_a": "OAI-SearchBot sends the user agent string Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot.",
      "statement_b": "Perplexity-User sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Perplexity-User/1.0; +https://perplexity.ai/perplexity-user).",
      "claim_id_a": 102,
      "claim_id_b": 111
    }
  ],
  "sources": [
    "https://developers.openai.com/api/docs/bots",
    "https://docs.perplexity.ai/docs/resources/perplexity-crawlers",
    "https://openai.com/searchbot.json",
    "https://rattlesnakesbymail.com/observed/oai-searchbot",
    "https://www.perplexity.ai/perplexity-user.json"
  ]
}