{
  "slug": "prompt-mention-share",
  "name": "Per-prompt mention share",
  "aliases": [
    "Mentions % (prompts tab)"
  ],
  "definition": "Your share of all brand mentions made on one answer-engine prompt, across every tracked brand named for it.",
  "category": "AI visibility",
  "type": "share",
  "unit": "percent of that prompt's mentions",
  "direction": "higher-better",
  "verification": "verified",
  "calculation": "(your mentions for the prompt / all tracked brands' mentions for the prompt) × 100, returned empty when the prompt drew no mentions. The two legs are the same brand-mention query with and without the client filter, each summed per prompt and joined on the prompt key.",
  "numerator": "Mentions of your brand on that prompt.",
  "denominator": "Mentions of every tracked brand on that prompt.",
  "aggregation": "Per-prompt denominators differ, so these are not averaged into an account mention share.",
  "grain": "One prompt for one tracked segment over one date range.",
  "dimensions": [
    "prompt",
    "answer engine",
    "intent",
    "branded vs non-branded",
    "country",
    "device"
  ],
  "requiredFilters": [
    "tracker or tracked segment id",
    "date range"
  ],
  "sources": [
    "ai-visibility",
    "rank-tracking"
  ],
  "reports": [
    "ai-visibility-report"
  ],
  "skills": [
    "aeo-audit",
    "ai-prompt-coverage-gaps"
  ],
  "verbs": [
    "ai_visibility_drilldown"
  ],
  "rungs": [
    "R4",
    "R3"
  ],
  "levers": [
    "L7"
  ],
  "questions": [
    "On which prompts do answers name us rather than our rivals?",
    "Are we named on the prompts that cite us?"
  ],
  "interpretation": "Compared against the citation share on the same row, this separates being talked about from being used as a source, the two diverge on most prompts and the direction of the divergence is the useful part.",
  "caveats": [
    "Empty means the prompt drew no mentions from any tracked brand, not that you scored zero against a populated field.",
    "When the all-brand leg returns no row for a prompt, the denominator falls back to your own mentions and the share reads as one hundred percent.",
    "The prompt tab reads the market-share brand-mention dataset. If the tracker has no market-share segment for the requested engine the tab returns no rows with a stated reason, rather than zeros.",
    "Every figure is scoped to a tracked prompt basket, a sample, not a census, so the basket's coverage belongs beside the number it produced."
  ],
  "freshness": "~1 day behind, Daily prompt runs, available the following day.",
  "failureModes": [
    "Reading it as a citation share because both columns sit on the same row and both end in a percent sign.",
    "Averaging per-prompt shares into one account-level figure."
  ],
  "notSameAs": [
    {
      "slug": "prompt-citation-share",
      "why": "Separate measures over the same prompt from two different datasets: mentions count your brand being named, citations count your URL being sourced. They routinely diverge and the direction of the divergence is the read."
    },
    {
      "slug": "prompt-share-of-voice-share",
      "why": "This divides by all tracked brands' mentions on the prompt; the share-of-voice percentage divides the same population's weighted citations-plus-mentions, so it moves with the citation half too."
    }
  ],
  "related": [
    "prompt-citation-share",
    "prompt-share-of-voice-score",
    "ai-mention-share"
  ],
  "workflows": [],
  "lastVerified": "2026-08-04"
}