Moonshot and Alibaba currently lead the race for second place on the Code Arena WebDev leaderboard behind Anthropic’s Claude Opus 5-max, with their top models (Kimi K3-max at 1674 and Qwen3.8-max at 1669) separated by just five points in the latest August 21 snapshot. Recent releases and iterative gains by these Chinese labs have narrowed the proprietary-open gap to single digits on agentic frontend and full-stack tasks, where human preference votes reward multi-step reasoning and tool use. Moonshot benefits from compute access and Kimi series momentum, while Alibaba’s Qwen updates show strong preliminary scores and cost efficiency. Other labs like SpaceXAI, OpenAI, and Z.ai trail further back, creating a closely contested dynamic where new model drops or vote surges could shift rankings before September 30 resolution. Traders view these two as the primary swing factors in the market-implied odds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMoonshot 38%
Alibaba 33%
OpenAI 7.8%
Anthropic 5.1%
$29,629 Vol.
$29,629 Vol.
Sep 30, 2026
Moonshot
38%
Alibaba
33%
OpenAI
8%
Anthropic
5%
SpaceXAI
2%
Z.ai
1%
ByteDance
1%
Meta
1%
Xiaomi
<1%
MiniMax
<1%
<1%
Mistral
<1%
DeepSeek
<1%
Thinky
<1%
Tencent
<1%
Poolside
<1%
Moonshot 38%
Alibaba 33%
OpenAI 7.8%
Anthropic 5.1%
$29,629 Vol.
$29,629 Vol.
Sep 30, 2026
Moonshot
$6,884 Vol.
38%
Alibaba
$9,757 Vol.
33%
OpenAI
$2,130 Vol.
8%
Anthropic
$3,516 Vol.
5%
SpaceXAI
$513 Vol.
2%
Z.ai
$451 Vol.
1%
ByteDance
$1,667 Vol.
1%
Meta
$529 Vol.
1%
Xiaomi
$838 Vol.
<1%
MiniMax
$417 Vol.
<1%
$458 Vol.
<1%
Mistral
$659 Vol.
<1%
DeepSeek
$453 Vol.
<1%
Thinky
$422 Vol.
<1%
Tencent
$427 Vol.
<1%
Poolside
$508 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".Moonshot and Alibaba currently lead the race for second place on the Code Arena WebDev leaderboard behind Anthropic’s Claude Opus 5-max, with their top models (Kimi K3-max at 1674 and Qwen3.8-max at 1669) separated by just five points in the latest August 21 snapshot. Recent releases and iterative gains by these Chinese labs have narrowed the proprietary-open gap to single digits on agentic frontend and full-stack tasks, where human preference votes reward multi-step reasoning and tool use. Moonshot benefits from compute access and Kimi series momentum, while Alibaba’s Qwen updates show strong preliminary scores and cost efficiency. Other labs like SpaceXAI, OpenAI, and Z.ai trail further back, creating a closely contested dynamic where new model drops or vote surges could shift rankings before September 30 resolution. Traders view these two as the primary swing factors in the market-implied odds.
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".
Market Opened: Jul 24, 2026, 7:45 PM ET
Volume
$29,629End Date
Sep 30, 2026Market Opened
Jul 24, 2026, 7:45 PM ETResolution Source
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
0x69c47De9D...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".Moonshot and Alibaba currently lead the race for second place on the Code Arena WebDev leaderboard behind Anthropic’s Claude Opus 5-max, with their top models (Kimi K3-max at 1674 and Qwen3.8-max at 1669) separated by just five points in the latest August 21 snapshot. Recent releases and iterative gains by these Chinese labs have narrowed the proprietary-open gap to single digits on agentic frontend and full-stack tasks, where human preference votes reward multi-step reasoning and tool use. Moonshot benefits from compute access and Kimi series momentum, while Alibaba’s Qwen updates show strong preliminary scores and cost efficiency. Other labs like SpaceXAI, OpenAI, and Z.ai trail further back, creating a closely contested dynamic where new model drops or vote surges could shift rankings before September 30 resolution. Traders view these two as the primary swing factors in the market-implied odds.
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".
Volume
$29,629End Date
Sep 30, 2026Market Opened
Jul 24, 2026, 7:45 PM ETResolution Source
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
0x69c47De9D...Moonshot and Alibaba currently lead the race for second place on the Code Arena WebDev leaderboard behind Anthropic’s Claude Opus 5-max, with their top models (Kimi K3-max at 1674 and Qwen3.8-max at 1669) separated by just five points in the latest August 21 snapshot. Recent releases and iterative gains by these Chinese labs have narrowed the proprietary-open gap to single digits on agentic frontend and full-stack tasks, where human preference votes reward multi-step reasoning and tool use. Moonshot benefits from compute access and Kimi series momentum, while Alibaba’s Qwen updates show strong preliminary scores and cost efficiency. Other labs like SpaceXAI, OpenAI, and Z.ai trail further back, creating a closely contested dynamic where new model drops or vote surges could shift rankings before September 30 resolution. Traders view these two as the primary swing factors in the market-implied odds.
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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