Anthropic's Claude Opus 5 Max leads Code Arena WebDev with the highest Elo score (around 1688) and vote volume as of late August 2026, driving the market's near-certain consensus. Its strong performance stems from superior agentic capabilities in multi-step reasoning, tool use, and front-end web development tasks like image-to-code generation and full-stack workflows, outpacing Moonshot's Kimi K3 Max and Alibaba's Qwen variants on the live leaderboard. Recent model iterations have reinforced this edge in real-user preference voting. A late surge from competitors via new releases or benchmark shifts could narrow the gap, though sustained dominance makes reversal unlikely before month-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 100.0%
Moonshot <1%
OpenAI <1%
Z.ai <1%
$55,299 Vol.
$55,299 Vol.
Aug 31, 2026
Moonshot
No
Anthropic
Yes
OpenAI
No
Z.ai
No
SpaceXAI
No
Meta
No
ByteDance
No
Alibaba
No
MiniMax
No
No
Xiaomi
No
DeepSeek
No
Thinky
No
Tencent
No
Poolside
No
Mistral
No
Anthropic 100.0%
Moonshot <1%
OpenAI <1%
Z.ai <1%
$55,299 Vol.
$55,299 Vol.
Aug 31, 2026
Moonshot
$6,850 Vol.
No
Anthropic
$34,777 Vol.
Yes
OpenAI
$1,745 Vol.
No
Z.ai
$1,701 Vol.
No
SpaceXAI
$1,402 Vol.
No
Meta
$794 Vol.
No
ByteDance
$458 Vol.
No
Alibaba
$1,580 Vol.
No
MiniMax
$532 Vol.
No
$1,502 Vol.
No
Xiaomi
$336 Vol.
No
DeepSeek
$1,522 Vol.
No
Thinky
$525 Vol.
No
Tencent
$530 Vol.
No
Poolside
$488 Vol.
No
Mistral
$557 Vol.
No
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 August 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.
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's Claude Opus 5 Max leads Code Arena WebDev with the highest Elo score (around 1688) and vote volume as of late August 2026, driving the market's near-certain consensus. Its strong performance stems from superior agentic capabilities in multi-step reasoning, tool use, and front-end web development tasks like image-to-code generation and full-stack workflows, outpacing Moonshot's Kimi K3 Max and Alibaba's Qwen variants on the live leaderboard. Recent model iterations have reinforced this edge in real-user preference voting. A late surge from competitors via new releases or benchmark shifts could narrow the gap, though sustained dominance makes reversal unlikely before month-end.
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 August 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.
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.
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: Jul 16, 2026, 10:56 PM ET
Volume
$55,299End Date
Sep 1, 2026Market Opened
Jul 16, 2026, 10:56 PM ETResolution Source
https://arena.ai/leaderboard/code/webdevResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 August 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.
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's Claude Opus 5 Max leads Code Arena WebDev with the highest Elo score (around 1688) and vote volume as of late August 2026, driving the market's near-certain consensus. Its strong performance stems from superior agentic capabilities in multi-step reasoning, tool use, and front-end web development tasks like image-to-code generation and full-stack workflows, outpacing Moonshot's Kimi K3 Max and Alibaba's Qwen variants on the live leaderboard. Recent model iterations have reinforced this edge in real-user preference voting. A late surge from competitors via new releases or benchmark shifts could narrow the gap, though sustained dominance makes reversal unlikely before month-end.
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 August 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.
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.
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
$55,299End Date
Sep 1, 2026Market Opened
Jul 16, 2026, 10:56 PM ETResolution Source
https://arena.ai/leaderboard/code/webdevResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Anthropic's Claude Opus 5 Max leads Code Arena WebDev with the highest Elo score (around 1688) and vote volume as of late August 2026, driving the market's near-certain consensus. Its strong performance stems from superior agentic capabilities in multi-step reasoning, tool use, and front-end web development tasks like image-to-code generation and full-stack workflows, outpacing Moonshot's Kimi K3 Max and Alibaba's Qwen variants on the live leaderboard. Recent model iterations have reinforced this edge in real-user preference voting. A late surge from competitors via new releases or benchmark shifts could narrow the gap, though sustained dominance makes reversal unlikely before month-end.
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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