Anthropic holds the strongest market-implied odds at 65.3% for finishing as the second-best Code Arena WebDev AI lab by end of October, driven by its recent Claude model updates that demonstrated superior performance on web development benchmarks and agentic coding tasks compared with peers. Traders appear to view these capability gains, alongside consistent developer adoption metrics, as the decisive edge over OpenAI at 19.5% and lower-probability contenders such as Google, Meta, and specialized labs. The closely bunched 50% outcomes for several unnamed companies reflect uncertainty around upcoming releases and benchmark results expected before the resolution date, while very low odds for firms like DeepSeek and Mistral signal limited near-term competitive traction in this specific web dev arena.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 65.3%
OpenAI 20%
SpaceXAI 4.8%
Alibaba 5%
$18,959 Vol.
$18,959 Vol.
Oct 31, 2026
Anthropic
65%
OpenAI
20%
SpaceXAI
5%
Alibaba
5%
DeepSeek
3%
Moonshot
2%
2%
Meta
2%
Poolside
1%
Z.ai
1%
ByteDance
1%
Xiaomi
1%
Mistral
1%
Tencent
<1%
Thinky
<1%
MiniMax
<1%
Anthropic 65.3%
OpenAI 20%
SpaceXAI 4.8%
Alibaba 5%
$18,959 Vol.
$18,959 Vol.
Oct 31, 2026
Anthropic
$3,005 Vol.
65%
OpenAI
$1,359 Vol.
20%
SpaceXAI
$585 Vol.
5%
Alibaba
$1,846 Vol.
5%
DeepSeek
$631 Vol.
3%
Moonshot
$4,931 Vol.
2%
$669 Vol.
2%
Meta
$709 Vol.
2%
Poolside
$969 Vol.
1%
Z.ai
$645 Vol.
1%
ByteDance
$660 Vol.
1%
Xiaomi
$409 Vol.
1%
Mistral
$794 Vol.
1%
Tencent
$603 Vol.
<1%
Thinky
$656 Vol.
<1%
MiniMax
$489 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 October 31, 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 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 holds the strongest market-implied odds at 65.3% for finishing as the second-best Code Arena WebDev AI lab by end of October, driven by its recent Claude model updates that demonstrated superior performance on web development benchmarks and agentic coding tasks compared with peers. Traders appear to view these capability gains, alongside consistent developer adoption metrics, as the decisive edge over OpenAI at 19.5% and lower-probability contenders such as Google, Meta, and specialized labs. The closely bunched 50% outcomes for several unnamed companies reflect uncertainty around upcoming releases and benchmark results expected before the resolution date, while very low odds for firms like DeepSeek and Mistral signal limited near-term competitive traction in this specific web dev arena.
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 October 31, 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 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.
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 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: Aug 12, 2026, 7:56 PM ET
Volume
$18,959End Date
Nov 1, 2026Market Opened
Aug 12, 2026, 7:56 PM ETResolver
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 October 31, 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 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 holds the strongest market-implied odds at 65.3% for finishing as the second-best Code Arena WebDev AI lab by end of October, driven by its recent Claude model updates that demonstrated superior performance on web development benchmarks and agentic coding tasks compared with peers. Traders appear to view these capability gains, alongside consistent developer adoption metrics, as the decisive edge over OpenAI at 19.5% and lower-probability contenders such as Google, Meta, and specialized labs. The closely bunched 50% outcomes for several unnamed companies reflect uncertainty around upcoming releases and benchmark results expected before the resolution date, while very low odds for firms like DeepSeek and Mistral signal limited near-term competitive traction in this specific web dev arena.
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 October 31, 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 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.
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 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
$18,959End Date
Nov 1, 2026Market Opened
Aug 12, 2026, 7:56 PM ETResolver
0x69c47De9D...Anthropic holds the strongest market-implied odds at 65.3% for finishing as the second-best Code Arena WebDev AI lab by end of October, driven by its recent Claude model updates that demonstrated superior performance on web development benchmarks and agentic coding tasks compared with peers. Traders appear to view these capability gains, alongside consistent developer adoption metrics, as the decisive edge over OpenAI at 19.5% and lower-probability contenders such as Google, Meta, and specialized labs. The closely bunched 50% outcomes for several unnamed companies reflect uncertainty around upcoming releases and benchmark results expected before the resolution date, while very low odds for firms like DeepSeek and Mistral signal limited near-term competitive traction in this specific web dev arena.
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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