Anthropic leads trader consensus in this Code Arena WebDev market due to its July 2026 release of Claude Opus 5 and June Sonnet 5 updates, which emphasized agentic coding, multi-step reasoning, and tool use on frontend tasks. These align directly with the arena.ai benchmark's focus on real-world web development workflows evaluated through crowdsourced votes. Competitive dynamics remain tight because frequent model updates from labs like DeepSeek, Moonshot, and Google keep shifting leaderboard positions, with open-weight entries gaining traction on preliminary ranks as of mid-August 2026. Key swing factors include new version releases and performance gains before the October resolution, as traders weigh demonstrated benchmark results against rapid iteration cycles in the AI coding space.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 52%
SpaceXAI 17%
Google 9%
Mistral 8%
NEW
NEW
Oct 31, 2026
Anthropic
52%
SpaceXAI
17%
9%
Mistral
8%
Alibaba
7%
DeepSeek
7%
Meta
6%
Moonshot
6%
OpenAI
5%
ByteDance
5%
MiniMax
3%
Poolside
3%
Xiaomi
3%
Thinky
2%
Tencent
2%
Z.ai
2%
Anthropic 52%
SpaceXAI 17%
Google 9%
Mistral 8%
NEW
NEW
Oct 31, 2026
Anthropic
$200 Vol.
52%
SpaceXAI
$73 Vol.
17%
$95 Vol.
9%
Mistral
$73 Vol.
8%
Alibaba
$73 Vol.
7%
DeepSeek
$73 Vol.
7%
Meta
$177 Vol.
6%
Moonshot
$73 Vol.
6%
OpenAI
$103 Vol.
5%
ByteDance
$150 Vol.
5%
MiniMax
$138 Vol.
3%
Poolside
$196 Vol.
3%
Xiaomi
$145 Vol.
3%
Thinky
$115 Vol.
2%
Tencent
$126 Vol.
2%
Z.ai
$63 Vol.
2%
This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Models" is checked on October 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first 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 leads trader consensus in this Code Arena WebDev market due to its July 2026 release of Claude Opus 5 and June Sonnet 5 updates, which emphasized agentic coding, multi-step reasoning, and tool use on frontend tasks. These align directly with the arena.ai benchmark's focus on real-world web development workflows evaluated through crowdsourced votes. Competitive dynamics remain tight because frequent model updates from labs like DeepSeek, Moonshot, and Google keep shifting leaderboard positions, with open-weight entries gaining traction on preliminary ranks as of mid-August 2026. Key swing factors include new version releases and performance gains before the October resolution, as traders weigh demonstrated benchmark results against rapid iteration cycles in the AI coding space.
This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Models" is checked on October 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first 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 "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first 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
$1,873End Date
Oct 31, 2026Market Opened
Aug 12, 2026, 7:56 PM ETResolver
0x69c47De9D...This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Models" is checked on October 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first 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 leads trader consensus in this Code Arena WebDev market due to its July 2026 release of Claude Opus 5 and June Sonnet 5 updates, which emphasized agentic coding, multi-step reasoning, and tool use on frontend tasks. These align directly with the arena.ai benchmark's focus on real-world web development workflows evaluated through crowdsourced votes. Competitive dynamics remain tight because frequent model updates from labs like DeepSeek, Moonshot, and Google keep shifting leaderboard positions, with open-weight entries gaining traction on preliminary ranks as of mid-August 2026. Key swing factors include new version releases and performance gains before the October resolution, as traders weigh demonstrated benchmark results against rapid iteration cycles in the AI coding space.
This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Models" is checked on October 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first 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 "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first 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
$1,873End Date
Oct 31, 2026Market Opened
Aug 12, 2026, 7:56 PM ETResolver
0x69c47De9D...Anthropic leads trader consensus in this Code Arena WebDev market due to its July 2026 release of Claude Opus 5 and June Sonnet 5 updates, which emphasized agentic coding, multi-step reasoning, and tool use on frontend tasks. These align directly with the arena.ai benchmark's focus on real-world web development workflows evaluated through crowdsourced votes. Competitive dynamics remain tight because frequent model updates from labs like DeepSeek, Moonshot, and Google keep shifting leaderboard positions, with open-weight entries gaining traction on preliminary ranks as of mid-August 2026. Key swing factors include new version releases and performance gains before the October resolution, as traders weigh demonstrated benchmark results against rapid iteration cycles in the AI coding space.
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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