{
  "title": "UK Restaurant AI Visibility Index 2026: public measurement receipt",
  "measurement_window": {
    "duration": "9 consecutive daily runs from 12 to 20 July 2026",
    "start_date": "2026-07-12",
    "end_date": "2026-07-20",
    "date_precision": "The Peec date-dimension readback preserves nine exact daily run dates from 12 to 20 July 2026. Their visibility_total values sum to the published 2,138-response denominator."
  },
  "market": "London restaurant and wine-bar brands",
  "tracked_brands": 28,
  "tracked_universe": [
    "Clos Maggiore",
    "Barrafina",
    "The Devonshire",
    "Trishna",
    "St. JOHN",
    "Flat Iron",
    "Fallow",
    "Humble Grape",
    "Hawksmoor",
    "Vagabond Wines",
    "Noble Rot",
    "The Wolseley",
    "Padella",
    "Sager + Wilde",
    "Brat",
    "Hoppers",
    "Brigadiers",
    "BAO",
    "Dishoom",
    "Kiln",
    "Big Mamma",
    "Sketch",
    "Gordon's Wine Bar",
    "Vinoteca",
    "Gymkhana",
    "Blacklock",
    "Cubitt House",
    "Ottolenghi"
  ],
  "selection_rule": "This is a purposive research cohort, not a random or representative sample. Brands were admitted when they had an official London restaurant or wine-bar presence, then selected to cover multi-site and independent operators across different cuisines, price points, neighbourhoods, occasions and operating models. Schmitdy's own project brand was excluded from the 28-name restaurant cohort. No tracked brand paid for inclusion.",
  "tracked_universe_provenance": "The names are the restaurant and wine-bar entries returned by the authoritative Peec project brand list on 2 September 2026, excluding Schmitdy's own-brand entry.",
  "approximate_prompt_count": 85,
  "response_count": 2138,
  "engines": ["ChatGPT", "Google AI Overviews"],
  "prompt_portfolio": {
    "count": "approximately 85",
    "scope": "London dining discovery questions covering neighbourhood, occasion, party size, price, cuisine, dietary needs, access, private dining and comparison",
    "public_receipt_scope": "This public receipt exposes the brand-level aggregate and methodology. The underlying prompt library remains in the Peec measurement project; raw answer text is not republished here."
  },
  "retention_rule": "A response was retained when the engine returned a usable answer to a London dining prompt. Errors, empty responses and non-answers were excluded.",
  "method": "The same practical London diner-question portfolio ran daily across ChatGPT and Google AI Overviews for 9 consecutive days, from 12 to 20 July 2026. For each retained response, Schmitdy recorded mentions of every tracked brand and the retrieved source domains.",
  "visibility_definition": "For every tracked brand, mentions divided by the same 2,138 retained London dining responses. There is no brand-specific denominator or weighting.",
  "weighting": "Every retained response had equal weight. Every tracked brand used the same denominator of 2,138.",
  "distribution_summary": {
    "brands_outside_top_ten": 18,
    "median_visibility_percent": 4.19,
    "highest_brand_outside_top_ten": "Padella",
    "highest_visibility_outside_top_ten_percent": 5.1,
    "all_brands_outside_top_ten_below_percent": 5.6
  },
  "top_ten": [
    { "rank": 1, "brand": "Hawksmoor", "visibility_percent": 12.5 },
    { "rank": 2, "brand": "Blacklock", "visibility_percent": 9.1 },
    { "rank": 3, "brand": "Dishoom", "visibility_percent": 8.0 },
    { "rank": 4, "brand": "Noble Rot", "visibility_percent": 7.7 },
    { "rank": 5, "brand": "Humble Grape", "visibility_percent": 7.0 },
    { "rank": 6, "brand": "Kiln", "visibility_percent": 6.8 },
    { "rank": 7, "brand": "St. JOHN", "visibility_percent": 6.5 },
    { "rank": 8, "brand": "Gymkhana", "visibility_percent": 5.9 },
    { "rank": 9, "brand": "Big Mamma", "visibility_percent": 5.8 },
    { "rank": 10, "brand": "Fallow", "visibility_percent": 5.6 }
  ],
  "ranked_brands": [
    { "rank": 1, "brand": "Hawksmoor", "mentions": 267, "visibility_percent": 12.49 },
    { "rank": 2, "brand": "Blacklock", "mentions": 194, "visibility_percent": 9.07 },
    { "rank": 3, "brand": "Dishoom", "mentions": 171, "visibility_percent": 8.0 },
    { "rank": 4, "brand": "Noble Rot", "mentions": 165, "visibility_percent": 7.72 },
    { "rank": 5, "brand": "Humble Grape", "mentions": 150, "visibility_percent": 7.02 },
    { "rank": 6, "brand": "Kiln", "mentions": 145, "visibility_percent": 6.78 },
    { "rank": 7, "brand": "St. JOHN", "mentions": 138, "visibility_percent": 6.45 },
    { "rank": 8, "brand": "Gymkhana", "mentions": 125, "visibility_percent": 5.85 },
    { "rank": 9, "brand": "Big Mamma", "mentions": 123, "visibility_percent": 5.75 },
    { "rank": 10, "brand": "Fallow", "mentions": 120, "visibility_percent": 5.61 },
    { "rank": 11, "brand": "Padella", "mentions": 109, "visibility_percent": 5.1 },
    { "rank": 12, "brand": "Flat Iron", "mentions": 101, "visibility_percent": 4.72 },
    { "rank": 13, "brand": "BAO", "mentions": 100, "visibility_percent": 4.68 },
    { "rank": 14, "brand": "Barrafina", "mentions": 97, "visibility_percent": 4.54 },
    { "rank": 15, "brand": "Trishna", "mentions": 82, "visibility_percent": 3.84 },
    { "rank": 16, "brand": "Hoppers", "mentions": 79, "visibility_percent": 3.7 },
    { "rank": 17, "brand": "The Devonshire", "mentions": 78, "visibility_percent": 3.65 },
    { "rank": 18, "brand": "Sketch", "mentions": 78, "visibility_percent": 3.65 },
    { "rank": 19, "brand": "Gordon's Wine Bar", "mentions": 77, "visibility_percent": 3.6 },
    { "rank": 20, "brand": "Clos Maggiore", "mentions": 66, "visibility_percent": 3.09 },
    { "rank": 21, "brand": "Brat", "mentions": 57, "visibility_percent": 2.67 },
    { "rank": 22, "brand": "Brigadiers", "mentions": 57, "visibility_percent": 2.67 },
    { "rank": 23, "brand": "Sager + Wilde", "mentions": 54, "visibility_percent": 2.53 },
    { "rank": 24, "brand": "Vagabond Wines", "mentions": 37, "visibility_percent": 1.73 },
    { "rank": 25, "brand": "The Wolseley", "mentions": 25, "visibility_percent": 1.17 },
    { "rank": 26, "brand": "Vinoteca", "mentions": 18, "visibility_percent": 0.84 },
    { "rank": 27, "brand": "Ottolenghi", "mentions": 11, "visibility_percent": 0.51 },
    { "rank": 28, "brand": "Cubitt House", "mentions": 3, "visibility_percent": 0.14 }
  ],
  "source_retrieval_definition": "Share of the same 2,138 retained responses in which the domain was retrieved. Retrieval is not the same as an inline citation and does not prove that a source caused a restaurant mention.",
  "source_retrieval": [
    { "rank": 1, "source": "Time Out", "domain": "timeout.com", "retrieval_percent": 42 },
    { "rank": 2, "source": "SquareMeal", "domain": "squaremeal.co.uk", "retrieval_percent": 25 },
    { "rank": 3, "source": "thatsup", "domain": "thatsup.co.uk", "retrieval_percent": 24 },
    { "rank": 4, "source": "Reddit", "domain": "reddit.com", "retrieval_percent": 22 },
    { "rank": 5, "source": "The Infatuation", "domain": "theinfatuation.com", "retrieval_percent": 20 },
    { "rank": 6, "source": "DesignMyNight", "domain": "designmynight.com", "retrieval_percent": 18 },
    { "rank": 7, "source": "Michelin", "domain": "guide.michelin.com", "retrieval_percent": 17 },
    { "rank": 8, "source": "OpenTable", "domain": "opentable.co.uk", "retrieval_percent": 15 },
    { "rank": 9, "source": "Olive Magazine", "domain": "olivemagazine.com", "retrieval_percent": 14 },
    { "rank": 10, "source": "Condé Nast Traveller", "domain": "cntraveller.com", "retrieval_percent": 13 },
    { "rank": 11, "source": "Visit London", "domain": "visitlondon.com", "retrieval_percent": 13 },
    { "rank": 12, "source": "The Nudge", "domain": "thenudge.com", "retrieval_percent": 11 },
    { "rank": 13, "source": "TripAdvisor", "domain": "tripadvisor.co.uk", "retrieval_percent": 9 }
  ],
  "limitations": [
    "This is a London sample, not a census of UK restaurants.",
    "The prompt portfolio and engine mix affect every percentage.",
    "Answers vary by time, account, location and model state.",
    "A visibility percentage is not a quality score, revenue measure or causal attribution.",
    "Source retrieval is association evidence and does not prove that one source caused a brand mention.",
    "The public receipt publishes brand-level aggregates, not raw answer text."
  ],
  "aggregate_first_published": "2026-07-26",
  "receipt_created": "2026-09-02",
  "receipt_updated": "2026-09-02",
  "changelog": [
    { "date": "2026-09-02", "change": "Corrected the measurement window from 14 days to the nine exact Peec run dates, 12 to 20 July 2026. The 2,138-response denominator and all brand and source aggregates are unchanged." },
    { "date": "2026-09-02", "change": "Added engine set, denominator, retention and weighting definitions, the full 28-brand tracked universe and selection rule, source-retrieval aggregate and commercial relationship disclosure." },
    { "date": "2026-09-02", "change": "Restored the complete 28-brand distribution from the authoritative Peec brand report, including the 4.19% median and the 18-brand long tail. Removed the incorrect statement that prompt-level data had not been preserved." }
  ]
}