Anthropic holds a commanding 76% implied probability as the second-best AI lab in Code Arena WebDev evaluations by end of September, driven by its Claude models' sustained dominance on relevant benchmarks. Claude Fable 5.1, Opus 5, and related variants lead or rank near the top on SWE-bench Verified (up to 96%), AA Coding Index (81.6%), CursorBench 4.0 (51.8%), and similar agentic web/fullstack coding leaderboards that mirror Code Arena's interactive UI-to-deployment workflows. OpenAI's GPT-5.6 family trails closely in second on many of these metrics but sits at just 21% market odds. A September 18 report of researchers leveraging a specialized Claude Opus variant to exploit OpenAI systems further underscores Anthropic's edge in complex, multi-step coding and reasoning tasks. With resolution imminent and no major competing releases reported in the past week, traders appear to view Anthropic's benchmark lead and recent capability demonstrations as the decisive factors.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateSecond-best Code Arena WebDev AI Lab end of September?
Second-best Code Arena WebDev AI Lab end of September?
Anthropic 75.3%
OpenAI 21.4%
Alibaba 3.6%
Moonshot 2.5%
$79,518 Vol.
$79,518 Vol.
Sep 30, 2026
Anthropic
75%
OpenAI
21%
Alibaba
4%
Moonshot
2%
SpaceXAI
1%
Z.ai
<1%
Tencent
<1%
Meta
<1%
ByteDance
<1%
MiniMax
<1%
<1%
Xiaomi
<1%
DeepSeek
<1%
Thinky
<1%
Poolside
<1%
Mistral
<1%
Anthropic 75.3%
OpenAI 21.4%
Alibaba 3.6%
Moonshot 2.5%
$79,518 Vol.
$79,518 Vol.
Sep 30, 2026
Anthropic
$18,202 Vol.
75%
OpenAI
$12,124 Vol.
21%
Alibaba
$17,592 Vol.
4%
Moonshot
$12,516 Vol.
2%
SpaceXAI
$2,591 Vol.
1%
Z.ai
$2,107 Vol.
<1%
Tencent
$1,987 Vol.
<1%
Meta
$1,709 Vol.
<1%
ByteDance
$3,054 Vol.
<1%
MiniMax
$598 Vol.
<1%
$1,766 Vol.
<1%
Xiaomi
$1,468 Vol.
<1%
DeepSeek
$1,022 Vol.
<1%
Thinky
$617 Vol.
<1%
Poolside
$1,035 Vol.
<1%
Mistral
$1,130 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".Anthropic holds a commanding 76% implied probability as the second-best AI lab in Code Arena WebDev evaluations by end of September, driven by its Claude models' sustained dominance on relevant benchmarks. Claude Fable 5.1, Opus 5, and related variants lead or rank near the top on SWE-bench Verified (up to 96%), AA Coding Index (81.6%), CursorBench 4.0 (51.8%), and similar agentic web/fullstack coding leaderboards that mirror Code Arena's interactive UI-to-deployment workflows. OpenAI's GPT-5.6 family trails closely in second on many of these metrics but sits at just 21% market odds. A September 18 report of researchers leveraging a specialized Claude Opus variant to exploit OpenAI systems further underscores Anthropic's edge in complex, multi-step coding and reasoning tasks. With resolution imminent and no major competing releases reported in the past week, traders appear to view Anthropic's benchmark lead and recent capability demonstrations as the decisive factors.
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".
Binuksan ang Market: Jul 24, 2026, 7:45 PM ET
Volume
$79,518Petsa ng Pagtatapos
Oct 1, 2026Binuksan ang Market
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".Anthropic holds a commanding 76% implied probability as the second-best AI lab in Code Arena WebDev evaluations by end of September, driven by its Claude models' sustained dominance on relevant benchmarks. Claude Fable 5.1, Opus 5, and related variants lead or rank near the top on SWE-bench Verified (up to 96%), AA Coding Index (81.6%), CursorBench 4.0 (51.8%), and similar agentic web/fullstack coding leaderboards that mirror Code Arena's interactive UI-to-deployment workflows. OpenAI's GPT-5.6 family trails closely in second on many of these metrics but sits at just 21% market odds. A September 18 report of researchers leveraging a specialized Claude Opus variant to exploit OpenAI systems further underscores Anthropic's edge in complex, multi-step coding and reasoning tasks. With resolution imminent and no major competing releases reported in the past week, traders appear to view Anthropic's benchmark lead and recent capability demonstrations as the decisive factors.
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
$79,518Petsa ng Pagtatapos
Oct 1, 2026Binuksan ang Market
Jul 24, 2026, 7:45 PM ETResolution Source
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
0x69c47De9D...Anthropic holds a commanding 76% implied probability as the second-best AI lab in Code Arena WebDev evaluations by end of September, driven by its Claude models' sustained dominance on relevant benchmarks. Claude Fable 5.1, Opus 5, and related variants lead or rank near the top on SWE-bench Verified (up to 96%), AA Coding Index (81.6%), CursorBench 4.0 (51.8%), and similar agentic web/fullstack coding leaderboards that mirror Code Arena's interactive UI-to-deployment workflows. OpenAI's GPT-5.6 family trails closely in second on many of these metrics but sits at just 21% market odds. A September 18 report of researchers leveraging a specialized Claude Opus variant to exploit OpenAI systems further underscores Anthropic's edge in complex, multi-step coding and reasoning tasks. With resolution imminent and no major competing releases reported in the past week, traders appear to view Anthropic's benchmark lead and recent capability demonstrations as the decisive factors.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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