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  "event_id": "CM-EVT-94PHQ11LY0",
  "slug": "kxmathai-26jul31",
  "question": "Will there be a new top Math AI this month?",
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  "editorial_notes": "These markets track which AI model leads the Arena AI Text Arena Math leaderboard as of July 31, 2026. Seven named models compete as discrete binary outcomes: Claude, ChatGPT, Gemini, Qwen, Kimi, Mimo, and Minimax. All seven resolve via Kalshi staff determination. The leaderboard snapshot date and resolution date coincide, so late-month ranking shifts carry full settlement weight.",
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      "question": "Top Math AI this month?",
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      "resolve_at": "2026-07-31T14:00:00Z",
      "status": "open",
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        "rules_raw": "If Claude is the #1 model on Arena AI Text Arena Leaderboard (Math) on Jul 31, 2026 at 10:00AM ET, then the market resolves to Yes.\n\nTied rankings shall be resolved using the publisher's official tie-breaking methodology; if none exists, all tied entities share the highest rank among them.\n\nIf multiple candidates are tied for a given rank, then their Contracts will resolve to $1/(the number of candidates tied), rounded down.",
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      "underlying_reference": "ChatGPT: Kalshi staff determination of the ranked leader on Arena AI Text Arena's Math leaderboard as of July 31, 2026 resolves the listed AI model's ranking.",
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        "rules_raw": "If ChatGPT is the #1 model on Arena AI Text Arena Leaderboard (Math) on Jul 31, 2026 at 10:00AM ET, then the market resolves to Yes.\n\nTied rankings shall be resolved using the publisher's official tie-breaking methodology; if none exists, all tied entities share the highest rank among them.\n\nIf multiple candidates are tied for a given rank, then their Contracts will resolve to $1/(the number of candidates tied), rounded down.",
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      "question": "Top Math AI this month?",
      "description": "Qwen",
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      "settlement_currency": "USD",
      "underlying_reference": "Qwen: Kalshi staff determination of the ranked leader on Arena AI Text Arena's Math leaderboard as of July 31, 2026 resolves the listed AI model's ranking.",
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      "underlying_reference": "Kimi: Kalshi staff determination of the ranked leader on Arena AI Text Arena's Math leaderboard as of July 31, 2026 resolves the listed AI model's ranking.",
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      "question": "Top Math AI this month?",
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      "underlying_reference": "Mimo: Kalshi staff determination of the ranked leader on Arena AI Text Arena's Math leaderboard as of July 31, 2026 resolves the listed AI model's ranking.",
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