{
  "_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-LW9HS0MJZ8",
  "slug": "which-company-has-the-best-code-arena-webdev-ai-model-end-of-july-20260715140712903",
  "question": "Which company will have the best Code Arena WebDev AI model by the end of July?",
  "category": "technology",
  "event_type": "BINARY",
  "ladder_distribution": null,
  "tags": [
    "technology",
    "ai",
    "code-arena",
    "webdev-model",
    "ai-benchmarks",
    "tech"
  ],
  "catalyst_types": [],
  "catalyst_dates": [],
  "editorial_notes": "These markets track which AI developer holds the top rank on the Code Arena WebDev Leaderboard at 12:00 PM ET on July 31, 2026. Each Polymarket contract covers a single named developer, forming a mutually exclusive set across OpenAI, Anthropic, Google, DeepSeek, Meta, and others. All contracts resolve via Polymarket's UMA Optimistic Oracle against the Rank column published at arena.ai. Leaderboard methodology changes before the snapshot date represent the primary resolution caveat.",
  "venues_covered": [
    "polymarket"
  ],
  "primary_market_id": "CM-MKT-1TZB9F26Q8",
  "current_primary_mark": {
    "last_price": 0.871,
    "implied_probability": 0.871
  },
  "created_at": "2026-07-23T21:11:14.426158+00:00",
  "updated_at": "2026-07-23T21:11:14.426158+00:00",
  "markets": [
    {
      "market_id": "CM-MKT-FRJNKYCDT6",
      "event_id": "CM-EVT-LW9HS0MJZ8",
      "platform": "polymarket",
      "platform_market_id": "0x3a4bfd8a8769fd325f9282b6e86429f261e2dc38780d36f4cef0a969d7f05bbd",
      "question": "Will OpenAI have the best Code Arena | WebDev AI at the end of July 2026?",
      "description": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 ti",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "OpenAI: The Code Arena | WebDev Leaderboard's \"Rank\" column for Models on July 31, 2026, 12:00 PM ET at https://arena.ai/leaderboard/code/webdev determines which listed company's model ranks highest.",
      "close_at": "2026-07-31T23:59:00Z",
      "resolve_at": "2026-07-31T23:59:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will 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://arena.ai/leaderboard/code/webdev",
        "sources": [
          {
            "name": "arena.ai",
            "url": "https://arena.ai/leaderboard/code/webdev",
            "provenance": "platform_api"
          },
          {
            "name": "Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "arena.ai",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 91,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.006,
      "implied_probability": 0.006,
      "volume_24h_usd": 138.12,
      "volume_total_usd": 4883.083635,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-EDBC738F76",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-MLGX4KLK16",
      "event_id": "CM-EVT-LW9HS0MJZ8",
      "platform": "polymarket",
      "platform_market_id": "0x827b5637b79c039c659893b88ef77fdb8fd357ab2c5d1719be27aa3cba5382c5",
      "question": "Will Anthropic have the best Code Arena | WebDev AI at the end of July 2026?",
      "description": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 ti",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Anthropic: The Code Arena | WebDev Leaderboard's \"Rank\" column for Models on July 31, 2026, 12:00 PM ET at https://arena.ai/leaderboard/code/webdev determines which listed company's model ranks highest.",
      "close_at": "2026-07-31T23:59:00Z",
      "resolve_at": "2026-07-31T23:59:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will 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://arena.ai/leaderboard/code/webdev",
        "sources": [
          {
            "name": "arena.ai",
            "url": "https://arena.ai/leaderboard/code/webdev",
            "provenance": "platform_api"
          },
          {
            "name": "Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "arena.ai",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 91,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.092,
      "implied_probability": 0.092,
      "volume_24h_usd": 726.0456360000001,
      "volume_total_usd": 2131.278877,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-CE43255EE7",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-2JFLQB5G99",
      "event_id": "CM-EVT-LW9HS0MJZ8",
      "platform": "polymarket",
      "platform_market_id": "0x45da88d91638eb9e1cc1366e4beaf8d3131d5d3eb8078f56f5f6aa2f521ffbc4",
      "question": "Will Z.ai have the best Code Arena | WebDev AI at the end of July 2026?",
      "description": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 ti",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Z.ai: The Code Arena | WebDev Leaderboard's \"Rank\" column for Models on July 31, 2026, 12:00 PM ET at https://arena.ai/leaderboard/code/webdev determines which listed company's model ranks highest.",
      "close_at": "2026-07-31T23:59:00Z",
      "resolve_at": "2026-07-31T23:59:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will 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://arena.ai/leaderboard/code/webdev",
        "sources": [
          {
            "name": "arena.ai",
            "url": "https://arena.ai/leaderboard/code/webdev",
            "provenance": "platform_api"
          },
          {
            "name": "Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "arena.ai",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 91,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": null,
      "implied_probability": null,
      "volume_24h_usd": 117.12,
      "volume_total_usd": 1075.699666,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-E6A9A2B6A7",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-0M1DC0B384",
      "event_id": "CM-EVT-LW9HS0MJZ8",
      "platform": "polymarket",
      "platform_market_id": "0xe0b402fcb1718792b6671774ca33d1780f793bb66b965d57b4a9ee79f1045d01",
      "question": "Will SpaceXAI have the best Code Arena | WebDev AI at the end of July 2026?",
      "description": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 ti",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "SpaceXAI: The Code Arena | WebDev Leaderboard's \"Rank\" column for Models on July 31, 2026, 12:00 PM ET at https://arena.ai/leaderboard/code/webdev determines which listed company's model ranks highest.",
      "close_at": "2026-07-31T23:59:00Z",
      "resolve_at": "2026-07-31T23:59:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will 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://arena.ai/leaderboard/code/webdev",
        "sources": [
          {
            "name": "arena.ai",
            "url": "https://arena.ai/leaderboard/code/webdev",
            "provenance": "platform_api"
          },
          {
            "name": "Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "arena.ai",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 91,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.001,
      "implied_probability": 0.001,
      "volume_24h_usd": 117.12,
      "volume_total_usd": 407.89300000000003,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-6951F77F45",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-L656M0PDP8",
      "event_id": "CM-EVT-LW9HS0MJZ8",
      "platform": "polymarket",
      "platform_market_id": "0xd2962b3ecb9df474162de4ce37c0a10ef390bc6126d8839a6fcdb2d6bd48330d",
      "question": "Will Meta have the best Code Arena | WebDev AI at the end of July 2026?",
      "description": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 ti",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "Meta: The Code Arena | WebDev Leaderboard's \"Rank\" column for Models on July 31, 2026, 12:00 PM ET at https://arena.ai/leaderboard/code/webdev determines which listed company's model ranks highest.",
      "close_at": "2026-07-31T23:59:00Z",
      "resolve_at": "2026-07-31T23:59:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will 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://arena.ai/leaderboard/code/webdev",
        "sources": [
          {
            "name": "arena.ai",
            "url": "https://arena.ai/leaderboard/code/webdev",
            "provenance": "platform_api"
          },
          {
            "name": "Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev)",
            "url": null,
            "provenance": "clearmarket_editorial"
          },
          {
            "name": "Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev",
            "url": null,
            "provenance": "clearmarket_editorial"
          }
        ],
        "source_of_record": "arena.ai",
        "source_mechanism": "single_authority",
        "source_type": null,
        "source_quality": null,
        "source_commitment": "named",
        "source_commitment_subtype": "named",
        "source_hedge_text": null
      },
      "rcg": {
        "grade": "A",
        "score": 91,
        "caps": [],
        "applied_factors": 6
      },
      "last_price": 0.001,
      "implied_probability": 0.001,
      "volume_24h_usd": 46.66,
      "volume_total_usd": 354.964,
      "settlement_style": "touch",
      "direction": null,
      "threshold": null,
      "question_id": "CMX-533701D740",
      "also_on": null,
      "tags": [
        "which company has"
      ],
      "eligibility_screens": null
    },
    {
      "market_id": "CM-MKT-KX2W35P069",
      "event_id": "CM-EVT-LW9HS0MJZ8",
      "platform": "polymarket",
      "platform_market_id": "0x30a2657ac88149755098c8c49f8ea93f534a59b1db1dddfefc8e5258164fb25a",
      "question": "Will ByteDance have the best Code Arena | WebDev AI at the end of July 2026?",
      "description": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 ti",
      "contract_type": "binary",
      "settlement_currency": "USDC",
      "underlying_reference": "ByteDance: The Code Arena | WebDev Leaderboard's \"Rank\" column for Models on July 31, 2026, 12:00 PM ET at https://arena.ai/leaderboard/code/webdev determines which listed company's model ranks highest.",
      "close_at": "2026-07-31T23:59:00Z",
      "resolve_at": "2026-07-31T23:59:00Z",
      "status": "open",
      "resolution": {
        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will 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://arena.ai/leaderboard/code/webdev",
        "sources": [
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        "rules_raw": "This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under \"Code Arena | WebDev\" filtered for \"Models\" is checked on July 31, 2026, 12:00 PM ET.\n\nResults from the \"Rank\" column under the \"Code Arena | WebDev\" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for \"Models\" 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 which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.\n\nThe resolution source for this market is the Code Arena | WebDev Leaderboard found at https://arena.ai/leaderboard/code/webdev. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.",
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