The closely matched 50% market-implied odds across multiple options reflect intense competition on the Code Arena WebDev leaderboard, where labs vie for third place through human-voted performance on agentic tasks like multi-step React development, UI cloning, and tool-integrated workflows. OpenAI’s GPT-6 variants lead overall with strong planning capabilities, while Anthropic’s Claude models dominate reliability in frontend-backend integration; Chinese entrants such as Alibaba’s Qwen series and Moonshot’s Kimi K3 have narrowed gaps via cost-effective open-weight releases, adding volatility. Rapid iteration ahead of November, combined with accumulating votes and potential new model drops, keeps third-place positioning fluid among these contenders.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAlibaba 29%
Moonshot 27%
Meta 17%
SpaceXAI 12%
NEW
NEW
Nov 30, 2026
Alibaba
29%
Moonshot
27%
Meta
17%
SpaceXAI
12%
7%
Xiaomi
12%
Anthropic
11%
Z.ai
7%
Thinky
8%
Mistral
5%
OpenAI
5%
Tencent
4%
DeepSeek
4%
MiniMax
4%
ByteDance
3%
Poolside
1%
Alibaba 29%
Moonshot 27%
Meta 17%
SpaceXAI 12%
NEW
NEW
Nov 30, 2026
Alibaba
$358 Vol.
29%
Moonshot
$394 Vol.
27%
Meta
$278 Vol.
17%
SpaceXAI
$89 Vol.
12%
$100 Vol.
7%
Xiaomi
$109 Vol.
12%
Anthropic
$88 Vol.
11%
Z.ai
$235 Vol.
7%
Thinky
$108 Vol.
8%
Mistral
$436 Vol.
5%
OpenAI
$200 Vol.
5%
Tencent
$78 Vol.
4%
DeepSeek
$300 Vol.
4%
MiniMax
$83 Vol.
4%
ByteDance
$88 Vol.
3%
Poolside
$178 Vol.
1%
This market will resolve according to the third-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 November 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 third 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".The closely matched 50% market-implied odds across multiple options reflect intense competition on the Code Arena WebDev leaderboard, where labs vie for third place through human-voted performance on agentic tasks like multi-step React development, UI cloning, and tool-integrated workflows. OpenAI’s GPT-6 variants lead overall with strong planning capabilities, while Anthropic’s Claude models dominate reliability in frontend-backend integration; Chinese entrants such as Alibaba’s Qwen series and Moonshot’s Kimi K3 have narrowed gaps via cost-effective open-weight releases, adding volatility. Rapid iteration ahead of November, combined with accumulating votes and potential new model drops, keeps third-place positioning fluid among these contenders.
This market will resolve according to the third-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 November 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 third 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 third 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".
Market Opened: Sep 17, 2026, 8:08 PM ET
Volume
$3,120End Date
Dec 1, 2026Market Opened
Sep 17, 2026, 8:08 PM ETResolver
0x69c47De9D...This market will resolve according to the third-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 November 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 third 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".The closely matched 50% market-implied odds across multiple options reflect intense competition on the Code Arena WebDev leaderboard, where labs vie for third place through human-voted performance on agentic tasks like multi-step React development, UI cloning, and tool-integrated workflows. OpenAI’s GPT-6 variants lead overall with strong planning capabilities, while Anthropic’s Claude models dominate reliability in frontend-backend integration; Chinese entrants such as Alibaba’s Qwen series and Moonshot’s Kimi K3 have narrowed gaps via cost-effective open-weight releases, adding volatility. Rapid iteration ahead of November, combined with accumulating votes and potential new model drops, keeps third-place positioning fluid among these contenders.
This market will resolve according to the third-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 November 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 third 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 third 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".
Volume
$3,120End Date
Dec 1, 2026Market Opened
Sep 17, 2026, 8:08 PM ETResolver
0x69c47De9D...The closely matched 50% market-implied odds across multiple options reflect intense competition on the Code Arena WebDev leaderboard, where labs vie for third place through human-voted performance on agentic tasks like multi-step React development, UI cloning, and tool-integrated workflows. OpenAI’s GPT-6 variants lead overall with strong planning capabilities, while Anthropic’s Claude models dominate reliability in frontend-backend integration; Chinese entrants such as Alibaba’s Qwen series and Moonshot’s Kimi K3 have narrowed gaps via cost-effective open-weight releases, adding volatility. Rapid iteration ahead of November, combined with accumulating votes and potential new model drops, keeps third-place positioning fluid among these contenders.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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