{
  "_notice": {
    "type": "free_key_offer",
    "message": "Free and anonymous access is staying. If this endpoint is in your pipeline, a free key adds advance notice before any schema change or deprecation. POST /v1/keys {\"email\": \"you@firm.com\"} — nothing else required. Something broken or missing? hello@clearmarket.fyi reaches a human.",
    "docs": "https://clearmarket.fyi/for-data/",
    "policy": "This field is additive and its shape will not change."
  },
  "event_id": "CM-EVT-HPPNCN88X2",
  "slug": "which-company-has-second-best-ai-model-end-of-june",
  "question": "Which company will have the second-best AI model by the end of June?",
  "category": "technology",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "technology",
    "ai-ranking",
    "model-performance",
    "2026",
    "openai",
    "anthropic"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These markets track which company holds the second-highest rank on the Chatbot Arena LLM Leaderboard's Text Arena Overall column at 12:00 PM ET on June 30, 2026. Nineteen binary Polymarket contracts cover named competitors plus placeholder slots, forming a mutually exclusive set. All markets resolve via Polymarket's UMA Optimistic Oracle against the leaderboard snapshot. The authoritative source is LMSYS Chatbot Arena, not any platform distribution channel.",
  "venues_covered": [
    "polymarket"
  ],
  "primary_market_id": "CM-MKT-K7H1BH0WF5",
  "current_primary_mark": {
    "last_price": 0,
    "implied_probability": 0
  },
  "created_at": "2026-07-06T00:30:45.836226+00:00",
  "updated_at": "2026-07-06T00:30:45.836226+00:00",
  "markets": [
    {
      "market_id": "CM-MKT-H2WS1SC3Z7",
      "event_id": "CM-EVT-HPPNCN88X2",
      "platform": "polymarket",
      "platform_market_id": "0xd0e97d28b706d26f47ada6b739674efe7768bf7a407481008474d5a0d4c4c55a",
      "question": "Will Anthropic have the second best AI model at the end of June 2026?",
      "description": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena s",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Anthropic: Chatbot Arena LLM Leaderboard's \"Text Arena | Overall\" Rank column on June 30, 2026, 12:00 PM ET determines which company owns the model ranked second highest.",
      "close_at": "2026-06-30T00:00:00Z",
      "resolve_at": "2026-06-30T00:00:00Z",
      "status": "resolved",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies second place under this ranking system.\n\nThe resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": "https://lmarena.ai/",
        "sources": [
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/",
            "provenance": "platform_api"
          },
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/leaderboard/text",
            "provenance": "platform_api"
          },
          {
            "name": "Chatbot Arena LLM Leaderboard",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/leaderboard/text",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "Chatbot Arena LLM Leaderboard",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "B",
        "score": 66,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 1,
      "implied_probability": 1,
      "volume_24h_usd": 129.868568,
      "volume_total_usd": 41465.03001699999,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-E23E95DAD9",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-33YMQBZMY4",
      "event_id": "CM-EVT-HPPNCN88X2",
      "platform": "polymarket",
      "platform_market_id": "0xb5186781abd047b2bdd0999ecdce72a2b3d6746f4ea580155844f539b4f1a276",
      "question": "Will Alibaba have the second best AI model at the end of June 2026?",
      "description": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena s",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Alibaba: Chatbot Arena LLM Leaderboard's \"Text Arena | Overall\" Rank column on June 30, 2026, 12:00 PM ET determines which company owns the model ranked second highest.",
      "close_at": "2026-06-30T00:00:00Z",
      "resolve_at": "2026-06-30T00:00:00Z",
      "status": "resolved",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies second place under this ranking system.\n\nThe resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": "https://lmarena.ai/",
        "sources": [
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/",
            "provenance": "platform_api"
          },
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/leaderboard/text",
            "provenance": "platform_api"
          },
          {
            "name": "Chatbot Arena LLM Leaderboard",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/leaderboard/text",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "Chatbot Arena LLM Leaderboard",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "B",
        "score": 66,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0,
      "implied_probability": 0,
      "volume_24h_usd": 365.25699999999995,
      "volume_total_usd": 24528.003301999986,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-DC3FE78331",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-Q6R609M3X6",
      "event_id": "CM-EVT-HPPNCN88X2",
      "platform": "polymarket",
      "platform_market_id": "0xe563417f1554295028487f40053056a79d880efc30b9fb0ddaefb967a7ee0da1",
      "question": "Will xAI have the second best AI model at the end of June 2026?",
      "description": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena s",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "xAI: Chatbot Arena LLM Leaderboard's \"Text Arena | Overall\" Rank column on June 30, 2026, 12:00 PM ET determines which company owns the model ranked second highest.",
      "close_at": "2026-06-30T00:00:00Z",
      "resolve_at": "2026-06-30T00:00:00Z",
      "status": "resolved",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies second place under this ranking system.\n\nThe resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": "https://lmarena.ai/",
        "sources": [
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/",
            "provenance": "platform_api"
          },
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/leaderboard/text",
            "provenance": "platform_api"
          },
          {
            "name": "Chatbot Arena LLM Leaderboard",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/leaderboard/text",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "Chatbot Arena LLM Leaderboard",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "B",
        "score": 66,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0,
      "implied_probability": 0,
      "volume_24h_usd": 1.172,
      "volume_total_usd": 25370.73831099999,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-E2C888E3D6",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-M1C75DK271",
      "event_id": "CM-EVT-HPPNCN88X2",
      "platform": "polymarket",
      "platform_market_id": "0xa60eb953fc761941ea8c294ee40aa9b31b372ae7334ac8cb3bce63452018f14f",
      "question": "Will Moonshot have the second best AI model at the end of June 2026?",
      "description": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena s",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Moonshot: Chatbot Arena LLM Leaderboard's \"Text Arena | Overall\" Rank column on June 30, 2026, 12:00 PM ET determines which company owns the model ranked second highest.",
      "close_at": "2026-06-30T00:00:00Z",
      "resolve_at": "2026-06-30T00:00:00Z",
      "status": "resolved",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies second place under this ranking system.\n\nThe resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": "https://lmarena.ai/",
        "sources": [
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/",
            "provenance": "platform_api"
          },
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/leaderboard/text",
            "provenance": "platform_api"
          },
          {
            "name": "Chatbot Arena LLM Leaderboard",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/leaderboard/text",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "Chatbot Arena LLM Leaderboard",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "B",
        "score": 66,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0,
      "implied_probability": 0,
      "volume_24h_usd": null,
      "volume_total_usd": 11216.82217,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-C046A3D83F",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-QNCXS3KLK0",
      "event_id": "CM-EVT-HPPNCN88X2",
      "platform": "polymarket",
      "platform_market_id": "0x59dff378c3598705f78efca002e933d8136ca975dc2ac0bb1aef43a7dc706525",
      "question": "Will Meituan have the second best AI model at the end of June 2026?",
      "description": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena s",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Meituan: Chatbot Arena LLM Leaderboard's \"Text Arena | Overall\" Rank column on June 30, 2026, 12:00 PM ET determines which company owns the model ranked second highest.",
      "close_at": "2026-06-30T00:00:00Z",
      "resolve_at": "2026-06-30T00:00:00Z",
      "status": "resolved",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies second place under this ranking system.\n\nThe resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.",
        "arbitration_model": "uma_oracle",
        "proposer": "managed_whitelist",
        "source": null,
        "source_status": "platform_named",
        "source_citation": "https://lmarena.ai/",
        "sources": [
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/",
            "provenance": "platform_api"
          },
          {
            "name": "lmarena.ai",
            "url": "https://lmarena.ai/leaderboard/text",
            "provenance": "platform_api"
          },
          {
            "name": "Chatbot Arena LLM Leaderboard",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "https://lmarena.ai/leaderboard/text",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "Chatbot Arena LLM Leaderboard",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "B",
        "score": 66,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0,
      "implied_probability": 0,
      "volume_24h_usd": 961.432,
      "volume_total_usd": 51524.88209399998,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-366AB95A5D",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-5W3CPR0LZ8",
      "event_id": "CM-EVT-HPPNCN88X2",
      "platform": "polymarket",
      "platform_market_id": "0x689930141d77c87382fd554a8fcf778488e930a0a205a1fad67a83ecc114168f",
      "question": "Will Meta have the second best AI model at the end of June 2026?",
      "description": "This market will resolve according to the company that owns the model with the second-highest arena rank based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the \"Leaderboard\" tab is checked on June 30, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Text Arena | Overall\" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market.\n\nModels will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena s",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Meta: Chatbot Arena LLM Leaderboard's \"Text Arena | Overall\" Rank column on June 30, 2026, 12:00 PM ET determines which company owns the model ranked second highest.",
      "close_at": "2026-06-30T00:00:00Z",
      "resolve_at": "2026-06-30T00:00:00Z",
      "status": "resolved",
      "resolution": {
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    {
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      "question": "Will Google have the second best AI model at the end of June 2026?",
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        "arbitration_model": "uma_oracle",
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    {
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