OpenAI’s early September launch of GPT-6 Astra quickly seized the top spot on Code Arena’s WebDev leaderboard with a 1,797 score, 35 points ahead of Anthropic’s Claude Fable 5.1 at 1,762, shifting trader focus to which lab holds second place by month-end. Anthropic’s consistent strength on agentic coding tasks, SWE-bench metrics, and real-world iterative workflows underpins the 80.8% market-implied odds for its models remaining the runner-up. OpenAI’s 17.2% reflects residual uncertainty around further Astra gains or refinements before September 30, while low probabilities for Chinese labs like Alibaba and Moonshot highlight their current gap in this community-driven Elo ranking. No major new releases have emerged in the past two weeks to alter the ordering.
Eksperymentalne podsumowanie AI odwołujące się do danych Polymarket. To nie jest porada handlowa i nie ma wpływu na rozstrzyganie tego rynku. · ZaktualizowanoSecond-best Code Arena WebDev AI Lab end of September?
Second-best Code Arena WebDev AI Lab end of September?
Anthropic 81.0%
OpenAI 17.1%
Alibaba 2.7%
Moonshot 2.4%
$79,125 Wol.
$79,125 Wol.
Sep 30, 2026
Anthropic
81%
OpenAI
17%
Alibaba
3%
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 81.0%
OpenAI 17.1%
Alibaba 2.7%
Moonshot 2.4%
$79,125 Wol.
$79,125 Wol.
Sep 30, 2026
Anthropic
$17,954 Wol.
81%
OpenAI
$12,069 Wol.
17%
Alibaba
$17,592 Wol.
3%
Moonshot
$12,496 Wol.
2%
SpaceXAI
$2,541 Wol.
1%
Z.ai
$2,097 Wol.
<1%
Tencent
$1,977 Wol.
<1%
Meta
$1,709 Wol.
<1%
ByteDance
$3,054 Wol.
<1%
MiniMax
$598 Wol.
<1%
$1,766 Wol.
<1%
Xiaomi
$1,468 Wol.
<1%
DeepSeek
$1,022 Wol.
<1%
Thinky
$617 Wol.
<1%
Poolside
$1,035 Wol.
<1%
Mistral
$1,130 Wol.
<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".OpenAI’s early September launch of GPT-6 Astra quickly seized the top spot on Code Arena’s WebDev leaderboard with a 1,797 score, 35 points ahead of Anthropic’s Claude Fable 5.1 at 1,762, shifting trader focus to which lab holds second place by month-end. Anthropic’s consistent strength on agentic coding tasks, SWE-bench metrics, and real-world iterative workflows underpins the 80.8% market-implied odds for its models remaining the runner-up. OpenAI’s 17.2% reflects residual uncertainty around further Astra gains or refinements before September 30, while low probabilities for Chinese labs like Alibaba and Moonshot highlight their current gap in this community-driven Elo ranking. No major new releases have emerged in the past two weeks to alter the ordering.
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".
Rynek otwarty: Jul 24, 2026, 7:45 PM ET
Wolumen
$79,125Data zakończenia
Oct 1, 2026Rynek otwarty
Jul 24, 2026, 7:45 PM ETŹródło rozstrzygnięcia
https://arena.ai/leaderboard/code/webdev?rankBy=labsRozstrzygający
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".OpenAI’s early September launch of GPT-6 Astra quickly seized the top spot on Code Arena’s WebDev leaderboard with a 1,797 score, 35 points ahead of Anthropic’s Claude Fable 5.1 at 1,762, shifting trader focus to which lab holds second place by month-end. Anthropic’s consistent strength on agentic coding tasks, SWE-bench metrics, and real-world iterative workflows underpins the 80.8% market-implied odds for its models remaining the runner-up. OpenAI’s 17.2% reflects residual uncertainty around further Astra gains or refinements before September 30, while low probabilities for Chinese labs like Alibaba and Moonshot highlight their current gap in this community-driven Elo ranking. No major new releases have emerged in the past two weeks to alter the ordering.
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".
Wolumen
$79,125Data zakończenia
Oct 1, 2026Rynek otwarty
Jul 24, 2026, 7:45 PM ETŹródło rozstrzygnięcia
https://arena.ai/leaderboard/code/webdev?rankBy=labsRozstrzygający
0x69c47De9D...OpenAI’s early September launch of GPT-6 Astra quickly seized the top spot on Code Arena’s WebDev leaderboard with a 1,797 score, 35 points ahead of Anthropic’s Claude Fable 5.1 at 1,762, shifting trader focus to which lab holds second place by month-end. Anthropic’s consistent strength on agentic coding tasks, SWE-bench metrics, and real-world iterative workflows underpins the 80.8% market-implied odds for its models remaining the runner-up. OpenAI’s 17.2% reflects residual uncertainty around further Astra gains or refinements before September 30, while low probabilities for Chinese labs like Alibaba and Moonshot highlight their current gap in this community-driven Elo ranking. No major new releases have emerged in the past two weeks to alter the ordering.
Eksperymentalne podsumowanie AI odwołujące się do danych Polymarket. To nie jest porada handlowa i nie ma wpływu na rozstrzyganie tego rynku. · Zaktualizowano
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