{
  "entity_a": {
    "slug": "applebot-extended",
    "name": "Applebot-Extended"
  },
  "entity_b": {
    "slug": "gptbot",
    "name": "GPTBot"
  },
  "fields_documented": 10,
  "claims": 16,
  "last_verified": "2026-09-13",
  "fields": [
    {
      "field": "honours_crawl_delay",
      "value_a": "n/a",
      "value_b": "not_documented",
      "claim_id_a": 2,
      "claim_id_b": 79,
      "same": false
    },
    {
      "field": "publishes_ip_list",
      "value_a": "no",
      "value_b": "yes",
      "claim_id_a": 3,
      "claim_id_b": 80,
      "same": false
    },
    {
      "field": "purpose_documented",
      "value_a": "policy_only",
      "value_b": "training",
      "claim_id_a": 5,
      "claim_id_b": 82,
      "same": false
    },
    {
      "field": "respects_robots_txt",
      "value_a": "n/a",
      "value_b": "yes",
      "claim_id_a": 1,
      "claim_id_b": 78,
      "same": false
    },
    {
      "field": "robots_token_differs_from_ua",
      "value_a": "yes",
      "value_b": null,
      "claim_id_a": 8,
      "claim_id_b": null,
      "same": false
    },
    {
      "field": "robots_txt_fetch_marker",
      "value_a": null,
      "value_b": "yes",
      "claim_id_a": null,
      "claim_id_b": 85,
      "same": false
    },
    {
      "field": "separate_search_and_training_tokens",
      "value_a": "yes",
      "value_b": "yes",
      "claim_id_a": 6,
      "claim_id_b": 83,
      "same": true
    },
    {
      "field": "user_agent_string_full",
      "value_a": null,
      "value_b": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; GPTBot/1.4; +https://openai.com/gptbot",
      "claim_id_a": null,
      "claim_id_b": 84,
      "same": false
    },
    {
      "field": "verifiable_by_rdns",
      "value_a": "n/a",
      "value_b": "not_documented",
      "claim_id_a": 4,
      "claim_id_b": 81,
      "same": false
    },
    {
      "field": "what_it_controls",
      "value_a": "AI training use of content, not search indexing",
      "value_b": null,
      "claim_id_a": 7,
      "claim_id_b": null,
      "same": false
    }
  ],
  "differences": [
    {
      "field": "honours_crawl_delay",
      "statement_a": "Apple does not publish a Crawl-delay behaviour for Applebot-Extended.",
      "statement_b": "OpenAI does not publish whether GPTBot honours the robots.txt Crawl-delay directive.",
      "claim_id_a": 2,
      "claim_id_b": 79
    },
    {
      "field": "publishes_ip_list",
      "statement_a": "Apple publishes no IP list specific to Applebot-Extended and documents one shared crawl identity for Applebot.",
      "statement_b": "OpenAI publishes the IP address ranges used by GPTBot as a JSON file at https://openai.com/gptbot.json.",
      "claim_id_a": 3,
      "claim_id_b": 80
    },
    {
      "field": "purpose_documented",
      "statement_a": "Applebot-Extended controls whether website content is used to train Apple general purpose foundation models.",
      "statement_b": "GPTBot crawls content that may be used to train OpenAI generative AI foundation models.",
      "claim_id_a": 5,
      "claim_id_b": 82
    },
    {
      "field": "respects_robots_txt",
      "statement_a": "Applebot-Extended is a robots.txt token that publishers disallow to opt out of generative model training.",
      "statement_b": "GPTBot honours robots.txt rules that webmasters set for the GPTBot token.",
      "claim_id_a": 1,
      "claim_id_b": 78
    },
    {
      "field": "robots_token_differs_from_ua",
      "statement_a": "Applebot-Extended is a robots.txt control token and does not correspond to a separate crawler user agent string.",
      "statement_b": null,
      "claim_id_a": 8,
      "claim_id_b": null
    },
    {
      "field": "robots_txt_fetch_marker",
      "statement_a": null,
      "statement_b": "OpenAI may add a robots.txt marker to the GPTBot user agent string when GPTBot fetches robots.txt files.",
      "claim_id_a": null,
      "claim_id_b": 85
    },
    {
      "field": "user_agent_string_full",
      "statement_a": null,
      "statement_b": "GPTBot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; GPTBot/1.4; +https://openai.com/gptbot.",
      "claim_id_a": null,
      "claim_id_b": 84
    },
    {
      "field": "verifiable_by_rdns",
      "statement_a": "Apple does not publish a reverse-DNS verification method specific to Applebot-Extended.",
      "statement_b": "OpenAI does not publish a reverse-DNS verification method for GPTBot.",
      "claim_id_a": 4,
      "claim_id_b": 81
    },
    {
      "field": "what_it_controls",
      "statement_a": "Applebot-Extended controls the AI training use of crawled content and does not control search indexing.",
      "statement_b": null,
      "claim_id_a": 7,
      "claim_id_b": null
    }
  ],
  "sources": [
    "https://developers.openai.com/api/docs/bots",
    "https://openai.com/gptbot.json",
    "https://support.apple.com/en-us/119829"
  ]
}