**OpenAI’s GPT-6 Astra recently overtook the top spot on Arena.ai’s Code Arena WebDev leaderboard with 1,797 points on September 5, 2026, 35 points ahead of Anthropic’s Claude Fable 5.1, following its September 3 launch.** This shift in the crowdsourced Elo-style ranking, which evaluates agentic, multi-step web development tasks through community votes, has reinforced trader consensus that Anthropic remains the clearest second-place contender by month-end. Anthropic’s sustained strength on related coding benchmarks and its established position in the fullstack evaluation environment support the 73.7% implied probability. OpenAI’s 15.6% reflects the low likelihood of its own model finishing second behind itself, while other labs trail far behind on the current leaderboard and lack comparable recent gains in this specific WebDev arena. With resolution imminent, any late-September model updates or leaderboard volatility could still influence final positioning.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoSegundo melhor Code Arena WebDev AI Lab no final de setembro?
Segundo melhor Code Arena WebDev AI Lab no final de setembro?
Anthropic 75.4%
OpenAI 15.4%
Alibaba 5%
Moonshot 5%
$59,693 Vol.
$59,693 Vol.
30 set 2026
Anthropic
75%
OpenAI
15%
Alibaba
5%
Moonshot
5%
SpaceXAI
3%
Tencent
1%
ByteDance
1%
Z.ai
<1%
Meta
<1%
<1%
MiniMax
<1%
Xiaomi
<1%
DeepSeek
<1%
Thinky
<1%
Poolside
<1%
Mistral
<1%
Anthropic 75.4%
OpenAI 15.4%
Alibaba 5%
Moonshot 5%
$59,693 Vol.
$59,693 Vol.
30 set 2026
Anthropic
$10,430 Vol.
75%
OpenAI
$5,346 Vol.
15%
Alibaba
$16,293 Vol.
5%
Moonshot
$11,703 Vol.
5%
SpaceXAI
$1,914 Vol.
3%
Tencent
$1,356 Vol.
1%
ByteDance
$2,799 Vol.
1%
Z.ai
$1,364 Vol.
<1%
Meta
$1,283 Vol.
<1%
$1,336 Vol.
<1%
MiniMax
$598 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".**OpenAI’s GPT-6 Astra recently overtook the top spot on Arena.ai’s Code Arena WebDev leaderboard with 1,797 points on September 5, 2026, 35 points ahead of Anthropic’s Claude Fable 5.1, following its September 3 launch.** This shift in the crowdsourced Elo-style ranking, which evaluates agentic, multi-step web development tasks through community votes, has reinforced trader consensus that Anthropic remains the clearest second-place contender by month-end. Anthropic’s sustained strength on related coding benchmarks and its established position in the fullstack evaluation environment support the 73.7% implied probability. OpenAI’s 15.6% reflects the low likelihood of its own model finishing second behind itself, while other labs trail far behind on the current leaderboard and lack comparable recent gains in this specific WebDev arena. With resolution imminent, any late-September model updates or leaderboard volatility could still influence final positioning.
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".
Mercado Aberto: Jul 24, 2026, 7:45 PM ET
Volume
$59,693Data de Término
1 out 2026Mercado Aberto
Jul 24, 2026, 7:45 PM ETFonte de resolução
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".**OpenAI’s GPT-6 Astra recently overtook the top spot on Arena.ai’s Code Arena WebDev leaderboard with 1,797 points on September 5, 2026, 35 points ahead of Anthropic’s Claude Fable 5.1, following its September 3 launch.** This shift in the crowdsourced Elo-style ranking, which evaluates agentic, multi-step web development tasks through community votes, has reinforced trader consensus that Anthropic remains the clearest second-place contender by month-end. Anthropic’s sustained strength on related coding benchmarks and its established position in the fullstack evaluation environment support the 73.7% implied probability. OpenAI’s 15.6% reflects the low likelihood of its own model finishing second behind itself, while other labs trail far behind on the current leaderboard and lack comparable recent gains in this specific WebDev arena. With resolution imminent, any late-September model updates or leaderboard volatility could still influence final positioning.
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
$59,693Data de Término
1 out 2026Mercado Aberto
Jul 24, 2026, 7:45 PM ETFonte de resolução
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
0x69c47De9D...**OpenAI’s GPT-6 Astra recently overtook the top spot on Arena.ai’s Code Arena WebDev leaderboard with 1,797 points on September 5, 2026, 35 points ahead of Anthropic’s Claude Fable 5.1, following its September 3 launch.** This shift in the crowdsourced Elo-style ranking, which evaluates agentic, multi-step web development tasks through community votes, has reinforced trader consensus that Anthropic remains the clearest second-place contender by month-end. Anthropic’s sustained strength on related coding benchmarks and its established position in the fullstack evaluation environment support the 73.7% implied probability. OpenAI’s 15.6% reflects the low likelihood of its own model finishing second behind itself, while other labs trail far behind on the current leaderboard and lack comparable recent gains in this specific WebDev arena. With resolution imminent, any late-September model updates or leaderboard volatility could still influence final positioning.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
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