Anthropic’s Claude Fable 5.1 and Mythos 5.1 releases on September 1 have anchored its position as the clear second-place lab on the Code Arena WebDev leaderboard, where community votes evaluate end-to-end frontend development and agentic workflows. These models demonstrate leading results on complex, multi-step coding tasks and long-context reasoning that align closely with the arena’s criteria, sustaining strong trader consensus at 78.8% implied probability. OpenAI’s GPT-6 Astra launch on September 3 captured the top spot with 1,797 points, leaving little room for other labs to challenge second place by month-end. Chinese contenders such as Alibaba’s Qwen and Moonshot’s Kimi trail significantly in recent arena scores, while no major new model drops or benchmark shifts have emerged in the past week to alter the ordering.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日Anthropic 78.8%
OpenAI 13.2%
アリババ 3.3%
ムーンショット 2.3%
$67,506 Vol.
$67,506 Vol.
2026/09/30
Anthropic
79%
OpenAI
13%
アリババ
3%
ムーンショット
2%
SpaceXAI
1%
テンセント
1%
Z.ai
<1%
Meta
<1%
<1%
バイトダンス
<1%
MiniMax
<1%
Xiaomi
<1%
DeepSeek
<1%
Thinky
<1%
Poolside
<1%
Mistral
<1%
Anthropic 78.8%
OpenAI 13.2%
アリババ 3.3%
ムーンショット 2.3%
$67,506 Vol.
$67,506 Vol.
2026/09/30
Anthropic
$13,272 Vol.
79%
OpenAI
$7,775 Vol.
13%
アリババ
$16,842 Vol.
3%
ムーンショット
$12,017 Vol.
2%
SpaceXAI
$2,214 Vol.
1%
テンセント
$1,650 Vol.
1%
Z.ai
$1,770 Vol.
<1%
Meta
$1,482 Vol.
<1%
$1,560 Vol.
<1%
バイトダンス
$3,054 Vol.
<1%
MiniMax
$598 Vol.
<1%
Xiaomi
$1,468 Vol.
<1%
DeepSeek
$1,022 Vol.
<1%
Thinky
$617 Vol.
<1%
Poolside
$1,035 Vol.
<1%
Mistral
$1,130 Vol.
<1%
This market will resolve according to the second-highest ranked Company based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Labs" is checked on September 30, 2026, 12:00 PM ET.
Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market.
AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. 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 AI lab/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 second place under this ranking.
The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. 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 to "Other".Anthropic’s Claude Fable 5.1 and Mythos 5.1 releases on September 1 have anchored its position as the clear second-place lab on the Code Arena WebDev leaderboard, where community votes evaluate end-to-end frontend development and agentic workflows. These models demonstrate leading results on complex, multi-step coding tasks and long-context reasoning that align closely with the arena’s criteria, sustaining strong trader consensus at 78.8% implied probability. OpenAI’s GPT-6 Astra launch on September 3 captured the top spot with 1,797 points, leaving little room for other labs to challenge second place by month-end. Chinese contenders such as Alibaba’s Qwen and Moonshot’s Kimi trail significantly in recent arena scores, while no major new model drops or benchmark shifts have emerged in the past week to alter the ordering.
This market will resolve according to the second-highest ranked Company based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Labs" is checked on September 30, 2026, 12:00 PM ET.
Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market.
AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. 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 AI lab/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 second place under this ranking.
The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. 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 to "Other".
Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market.
AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. 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 AI lab/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 second place under this ranking.
The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. 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 to "Other".
マーケット開始日： Jul 24, 2026, 7:45 PM ET
音量
$67,506終了日
2026/10/01マーケット開始日
Jul 24, 2026, 7:45 PM ETThis market will resolve according to the second-highest ranked Company based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Labs" is checked on September 30, 2026, 12:00 PM ET.
Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market.
AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. 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 AI lab/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 second place under this ranking.
The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. 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 to "Other".Anthropic’s Claude Fable 5.1 and Mythos 5.1 releases on September 1 have anchored its position as the clear second-place lab on the Code Arena WebDev leaderboard, where community votes evaluate end-to-end frontend development and agentic workflows. These models demonstrate leading results on complex, multi-step coding tasks and long-context reasoning that align closely with the arena’s criteria, sustaining strong trader consensus at 78.8% implied probability. OpenAI’s GPT-6 Astra launch on September 3 captured the top spot with 1,797 points, leaving little room for other labs to challenge second place by month-end. Chinese contenders such as Alibaba’s Qwen and Moonshot’s Kimi trail significantly in recent arena scores, while no major new model drops or benchmark shifts have emerged in the past week to alter the ordering.
This market will resolve according to the second-highest ranked Company based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Labs" is checked on September 30, 2026, 12:00 PM ET.
Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market.
AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. 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 AI lab/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 second place under this ranking.
The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. 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 to "Other".
Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market.
AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. 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 AI lab/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 second place under this ranking.
The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. 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 to "Other".
音量
$67,506終了日
2026/10/01マーケット開始日
Jul 24, 2026, 7:45 PM ETAnthropic’s Claude Fable 5.1 and Mythos 5.1 releases on September 1 have anchored its position as the clear second-place lab on the Code Arena WebDev leaderboard, where community votes evaluate end-to-end frontend development and agentic workflows. These models demonstrate leading results on complex, multi-step coding tasks and long-context reasoning that align closely with the arena’s criteria, sustaining strong trader consensus at 78.8% implied probability. OpenAI’s GPT-6 Astra launch on September 3 captured the top spot with 1,797 points, leaving little room for other labs to challenge second place by month-end. Chinese contenders such as Alibaba’s Qwen and Moonshot’s Kimi trail significantly in recent arena scores, while no major new model drops or benchmark shifts have emerged in the past week to alter the ordering.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日
外部リンクに注意してください。
外部リンクに注意してください。
よくある質問