{
  "schema": "ai-study-summary/2",
  "study": "la-2026",
  "generated_at": "2026-10-28T10:06:37.255Z",
  "zero_spend": true,
  "coverage": {
    "platforms": [
      {
        "platform": "chatgpt",
        "label": "ChatGPT",
        "mode": "logged-out",
        "modes": [
          "logged-out"
        ],
        "cells_asked": 25,
        "cells_ok": 25,
        "share_ok": 0.25
      },
      {
        "platform": "claude",
        "label": "Claude",
        "mode": null,
        "modes": [],
        "cells_asked": 0,
        "cells_ok": 0,
        "share_ok": 0
      },
      {
        "platform": "gemini",
        "label": "Gemini",
        "mode": "logged-out",
        "modes": [
          "logged-out"
        ],
        "cells_asked": 25,
        "cells_ok": 25,
        "share_ok": 0.25
      },
      {
        "platform": "google_ai_mode",
        "label": "Google AI Mode",
        "mode": "logged-out",
        "modes": [
          "logged-out"
        ],
        "cells_asked": 25,
        "cells_ok": 25,
        "share_ok": 0.25
      }
    ],
    "platforms_excluded": [
      {
        "platform": "perplexity",
        "label": "Perplexity",
        "reason": "not collected: left out on the study's own reading of its consumer terms"
      }
    ],
    "categories": 25,
    "places": 4,
    "cells_total": 100,
    "cells_ok": 0,
    "answers_total": 400,
    "answers_ok": 75,
    "nights": [
      {
        "night": "2026-10-27",
        "answers": 75,
        "ok": 75,
        "stopped": null
      }
    ],
    "status": "PARTIAL",
    "platforms_short": [
      {
        "platform": "chatgpt",
        "share_ok": 0.25
      },
      {
        "platform": "claude",
        "share_ok": 0
      },
      {
        "platform": "gemini",
        "share_ok": 0.25
      },
      {
        "platform": "google_ai_mode",
        "share_ok": 0.25
      }
    ]
  },
  "named": {
    "per_platform": {
      "chatgpt": {
        "answers_ok": 25,
        "answers_with_names": {
          "count": 25,
          "of": 25,
          "share": 1
        },
        "businesses_distinct": 102,
        "businesses_per_answer_mean": 4.16
      },
      "claude": {
        "answers_ok": 0,
        "answers_with_names": {
          "count": 0,
          "of": 0,
          "share": null
        },
        "businesses_distinct": 0,
        "businesses_per_answer_mean": null
      },
      "gemini": {
        "answers_ok": 25,
        "answers_with_names": {
          "count": 25,
          "of": 25,
          "share": 1
        },
        "businesses_distinct": 121,
        "businesses_per_answer_mean": 4.88
      },
      "google_ai_mode": {
        "answers_ok": 25,
        "answers_with_names": {
          "count": 25,
          "of": 25,
          "share": 1
        },
        "businesses_distinct": 129,
        "businesses_per_answer_mean": 5.24
      }
    },
    "overlap": [
      {
        "a": "chatgpt",
        "b": "claude",
        "cells_both_ok": 0,
        "shared_distinct": 0,
        "jaccard": null
      },
      {
        "a": "chatgpt",
        "b": "gemini",
        "cells_both_ok": 25,
        "shared_distinct": 24,
        "jaccard": 0.1188
      },
      {
        "a": "chatgpt",
        "b": "google_ai_mode",
        "cells_both_ok": 25,
        "shared_distinct": 55,
        "jaccard": 0.3056
      },
      {
        "a": "claude",
        "b": "gemini",
        "cells_both_ok": 0,
        "shared_distinct": 0,
        "jaccard": null
      },
      {
        "a": "claude",
        "b": "google_ai_mode",
        "cells_both_ok": 0,
        "shared_distinct": 0,
        "jaccard": null
      },
      {
        "a": "gemini",
        "b": "google_ai_mode",
        "cells_both_ok": 25,
        "shared_distinct": 33,
        "jaccard": 0.15
      }
    ]
  },
  "shares_as_cited": {
    "per_platform": {
      "chatgpt": {
        "businesses_named": 104,
        "with_own_site": {
          "count": 8,
          "of": 104,
          "share": 0.0769
        },
        "with_google": {
          "count": 0,
          "of": 104,
          "share": 0
        },
        "with_yelp": {
          "count": 0,
          "of": 104,
          "share": 0
        }
      },
      "claude": {
        "businesses_named": 0,
        "with_own_site": {
          "count": 0,
          "of": 0,
          "share": null
        },
        "with_google": {
          "count": 0,
          "of": 0,
          "share": null
        },
        "with_yelp": {
          "count": 0,
          "of": 0,
          "share": null
        }
      },
      "gemini": {
        "businesses_named": 122,
        "with_own_site": {
          "count": 35,
          "of": 122,
          "share": 0.2869
        },
        "with_google": {
          "count": 0,
          "of": 122,
          "share": 0
        },
        "with_yelp": {
          "count": 0,
          "of": 122,
          "share": 0
        }
      },
      "google_ai_mode": {
        "businesses_named": 131,
        "with_own_site": {
          "count": 1,
          "of": 131,
          "share": 0.0076
        },
        "with_google": {
          "count": 0,
          "of": 131,
          "share": 0
        },
        "with_yelp": {
          "count": 0,
          "of": 131,
          "share": 0
        }
      }
    }
  },
  "sources": {
    "per_platform": {
      "chatgpt": {
        "answers_ok": 25,
        "citations_per_answer_mean": 2.24,
        "kinds": {
          "maps": {
            "count": 0,
            "share": 0
          },
          "yelp": {
            "count": 14,
            "share": 0.56
          },
          "directory": {
            "count": 5,
            "share": 0.2
          },
          "review": {
            "count": 7,
            "share": 0.28
          },
          "news": {
            "count": 0,
            "share": 0
          },
          "social": {
            "count": 0,
            "share": 0
          },
          "forum": {
            "count": 0,
            "share": 0
          },
          "platform": {
            "count": 5,
            "share": 0.2
          },
          "other": {
            "count": 8,
            "share": 0.32
          }
        },
        "top_domains": [
          {
            "domain": "yelp.com",
            "kind": "yelp",
            "count": 14,
            "share": 0.56
          },
          {
            "domain": "healthgrades.com",
            "kind": "review",
            "count": 7,
            "share": 0.28
          },
          {
            "domain": "webmd.com",
            "kind": "directory",
            "count": 2,
            "share": 0.08
          },
          {
            "domain": "birdeye.com",
            "kind": "review",
            "count": 1,
            "share": 0.04
          },
          {
            "domain": "cslb.ca.gov",
            "kind": "directory",
            "count": 1,
            "share": 0.04
          },
          {
            "domain": "threebestrated.com",
            "kind": "directory",
            "count": 1,
            "share": 0.04
          },
          {
            "domain": "zocdoc.com",
            "kind": "directory",
            "count": 1,
            "share": 0.04
          }
        ]
      },
      "claude": {
        "answers_ok": 0,
        "citations_per_answer_mean": null,
        "kinds": {
          "maps": {
            "count": 0,
            "share": null
          },
          "yelp": {
            "count": 0,
            "share": null
          },
          "directory": {
            "count": 0,
            "share": null
          },
          "review": {
            "count": 0,
            "share": null
          },
          "news": {
            "count": 0,
            "share": null
          },
          "social": {
            "count": 0,
            "share": null
          },
          "forum": {
            "count": 0,
            "share": null
          },
          "platform": {
            "count": 0,
            "share": null
          },
          "other": {
            "count": 0,
            "share": null
          }
        },
        "top_domains": []
      },
      "gemini": {
        "answers_ok": 25,
        "citations_per_answer_mean": 3.84,
        "kinds": {
          "maps": {
            "count": 0,
            "share": 0
          },
          "yelp": {
            "count": 0,
            "share": 0
          },
          "directory": {
            "count": 7,
            "share": 0.28
          },
          "review": {
            "count": 0,
            "share": 0
          },
          "news": {
            "count": 0,
            "share": 0
          },
          "social": {
            "count": 0,
            "share": 0
          },
          "forum": {
            "count": 1,
            "share": 0.04
          },
          "platform": {
            "count": 0,
            "share": 0
          },
          "other": {
            "count": 20,
            "share": 0.8
          }
        },
        "top_domains": [
          {
            "domain": "zocdoc.com",
            "kind": "directory",
            "count": 3,
            "share": 0.12
          },
          {
            "domain": "threebestrated.com",
            "kind": "directory",
            "count": 2,
            "share": 0.08
          },
          {
            "domain": "aad.org",
            "kind": "directory",
            "count": 1,
            "share": 0.04
          },
          {
            "domain": "reddit.com",
            "kind": "forum",
            "count": 1,
            "share": 0.04
          },
          {
            "domain": "thumbtack.com",
            "kind": "directory",
            "count": 1,
            "share": 0.04
          },
          {
            "domain": "webmd.com",
            "kind": "directory",
            "count": 1,
            "share": 0.04
          }
        ]
      },
      "google_ai_mode": {
        "answers_ok": 25,
        "citations_per_answer_mean": 1.76,
        "kinds": {
          "maps": {
            "count": 14,
            "share": 0.56
          },
          "yelp": {
            "count": 18,
            "share": 0.72
          },
          "directory": {
            "count": 7,
            "share": 0.28
          },
          "review": {
            "count": 0,
            "share": 0
          },
          "news": {
            "count": 0,
            "share": 0
          },
          "social": {
            "count": 0,
            "share": 0
          },
          "forum": {
            "count": 0,
            "share": 0
          },
          "platform": {
            "count": 0,
            "share": 0
          },
          "other": {
            "count": 4,
            "share": 0.16
          }
        },
        "top_domains": [
          {
            "domain": "yelp.com",
            "kind": "yelp",
            "count": 18,
            "share": 0.72
          },
          {
            "domain": "google.com",
            "kind": "maps",
            "count": 14,
            "share": 0.56
          },
          {
            "domain": "zocdoc.com",
            "kind": "directory",
            "count": 7,
            "share": 0.28
          }
        ]
      }
    }
  },
  "method": {
    "prompt_template": "best <category> in <place>",
    "places": [
      "Santa Monica",
      "Pasadena",
      "Sherman Oaks",
      "Long Beach"
    ],
    "categories": [
      "med spa",
      "dentist",
      "orthodontist",
      "dermatologist",
      "chiropractor",
      "physical therapist",
      "plumber",
      "electrician",
      "HVAC company",
      "roofer",
      "landscaper",
      "construction company",
      "real estate agent",
      "mortgage broker",
      "personal injury lawyer",
      "family lawyer",
      "CPA",
      "hair salon",
      "nail salon",
      "barber",
      "gym",
      "auto repair shop",
      "wedding photographer",
      "interior designer",
      "moving company"
    ],
    "platforms": [
      {
        "platform": "chatgpt",
        "label": "ChatGPT"
      },
      {
        "platform": "claude",
        "label": "Claude"
      },
      {
        "platform": "gemini",
        "label": "Gemini"
      },
      {
        "platform": "google_ai_mode",
        "label": "Google AI Mode"
      }
    ],
    "runs_per_cell": 1,
    "collection": "browser, consumer accounts, paced",
    "dates": {
      "first": "2026-10-27",
      "last": "2026-10-27"
    },
    "notes": [
      "Each prompt, best <category> in <place>, was asked once in each assistant's own consumer app by an automated browser session, logged out or on the agency's own consumer accounts, one fresh chat per prompt, with paced pauses between prompts; nothing was asked through an API, and an app can answer differently from its maker's API.",
      "Answers change between runs, days, accounts and locations: every figure here describes one run of each prompt.",
      "Shares are as cited by the assistant: a business counts as cited with its own site, a Google Maps link or a Yelp page only when the answer itself linked one. Nothing was looked up.",
      "A Google Maps link counts for a business only when it points at that business (a place link); a map of several places, such as an answer's place cards, counts for none.",
      "Claude's answers were recorded as the businesses it named and the links it cited, without the answer's text, so its own-site, Google Maps and Yelp flags rest on the cited links alone: a Maps or Yelp link counts for a Claude business only when the link's own address names it, where on the other assistants a link beside the business in the answer counts too, so Claude's shares can read lower for that reason.",
      "Businesses are matched by name within each prompt, case, punctuation and legal suffixes set aside. No business is named or ranked here.",
      "Source kinds count the answers that cite at least one source of that kind; a business's own site is counted under the shares, never listed as a source.",
      "A visitor's request whose words name one of the planned cells counts toward these figures, asked in the study's own wording of that cell, never in the visitor's words; any other visitor request serves the checker only.",
      "No AI service was paid for any of it: no API, no paid plan, no credits.",
      "Perplexity: not collected: left out on the study's own reading of its consumer terms."
    ]
  }
}