Recent Code Arena WebDev leaderboard results on arena.ai, with Anthropic’s Claude Opus 5 Max holding first and Moonshot’s Kimi K3 Max a close second as of mid-August 2026, are the main driver of trader sentiment. Chinese labs have posted rapid gains in agentic frontend coding and multi-step web tasks, tightening the race for third place among Moonshot, Alibaba’s Qwen models, OpenAI, and others. Market-implied odds reflect this uncertainty, with many outcomes clustered near 50% and no single lab pulling ahead decisively. Key catalysts ahead include September model releases or benchmark updates that could shift Elo scores and resolve the tight contest before month-end resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMoonshot 37%
Alibaba 32%
OpenAI 11.7%
Anthropic 7.8%
$18,631 Vol.
$18,631 Vol.
Sep 30, 2026
Moonshot
37%
Alibaba
32%
OpenAI
12%
Anthropic
8%
Meta
4%
Z.ai
8%
ByteDance
2%
MiniMax
2%
SpaceXAI
2%
Tencent
1%
8%
DeepSeek
1%
Xiaomi
1%
Thinky
1%
Poolside
<1%
Mistral
<1%
Moonshot 37%
Alibaba 32%
OpenAI 11.7%
Anthropic 7.8%
$18,631 Vol.
$18,631 Vol.
Sep 30, 2026
Moonshot
$4,550 Vol.
37%
Alibaba
$6,564 Vol.
32%
OpenAI
$644 Vol.
12%
Anthropic
$2,425 Vol.
8%
Meta
$536 Vol.
4%
Z.ai
$490 Vol.
8%
ByteDance
$297 Vol.
2%
MiniMax
$303 Vol.
2%
SpaceXAI
$325 Vol.
2%
Tencent
$328 Vol.
1%
$528 Vol.
8%
DeepSeek
$470 Vol.
1%
Xiaomi
$303 Vol.
1%
Thinky
$308 Vol.
1%
Poolside
$306 Vol.
<1%
Mistral
$253 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 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 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".Recent Code Arena WebDev leaderboard results on arena.ai, with Anthropic’s Claude Opus 5 Max holding first and Moonshot’s Kimi K3 Max a close second as of mid-August 2026, are the main driver of trader sentiment. Chinese labs have posted rapid gains in agentic frontend coding and multi-step web tasks, tightening the race for third place among Moonshot, Alibaba’s Qwen models, OpenAI, and others. Market-implied odds reflect this uncertainty, with many outcomes clustered near 50% and no single lab pulling ahead decisively. Key catalysts ahead include September model releases or benchmark updates that could shift Elo scores and resolve the tight contest before month-end resolution.
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 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 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.
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: Jul 24, 2026, 7:46 PM ET
Volume
$18,631End Date
Sep 30, 2026Market Opened
Jul 24, 2026, 7:46 PM ETResolution Source
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
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 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 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".Recent Code Arena WebDev leaderboard results on arena.ai, with Anthropic’s Claude Opus 5 Max holding first and Moonshot’s Kimi K3 Max a close second as of mid-August 2026, are the main driver of trader sentiment. Chinese labs have posted rapid gains in agentic frontend coding and multi-step web tasks, tightening the race for third place among Moonshot, Alibaba’s Qwen models, OpenAI, and others. Market-implied odds reflect this uncertainty, with many outcomes clustered near 50% and no single lab pulling ahead decisively. Key catalysts ahead include September model releases or benchmark updates that could shift Elo scores and resolve the tight contest before month-end resolution.
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 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 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.
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
$18,631End Date
Sep 30, 2026Market Opened
Jul 24, 2026, 7:46 PM ETResolution Source
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
0x69c47De9D...Recent Code Arena WebDev leaderboard results on arena.ai, with Anthropic’s Claude Opus 5 Max holding first and Moonshot’s Kimi K3 Max a close second as of mid-August 2026, are the main driver of trader sentiment. Chinese labs have posted rapid gains in agentic frontend coding and multi-step web tasks, tightening the race for third place among Moonshot, Alibaba’s Qwen models, OpenAI, and others. Market-implied odds reflect this uncertainty, with many outcomes clustered near 50% and no single lab pulling ahead decisively. Key catalysts ahead include September model releases or benchmark updates that could shift Elo scores and resolve the tight contest before month-end resolution.
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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