Anthropic’s recent launch of Claude Fable 5.1 and Mythos 5.1 in early September, paired with ongoing Claude Code updates including browser integration and design-to-code pipelines, has solidified its position as the frontrunner for second place on Code Arena’s WebDev leaderboard behind OpenAI’s newly released GPT-6 Astra. Traders see these agentic coding improvements and strong performance on real-world frontend and full-stack tasks as sustaining Anthropic’s edge through October. OpenAI’s 22.5% implied probability reflects Astra’s current top score, while lower odds for labs like Google, Meta, and others align with slower recent gains in community-voted web development benchmarks. Key catalysts ahead include further model iterations or leaderboard shifts before month-end.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · ActualizadoAnthropic 63.5%
OpenAI 22%
SpaceXAI 4.7%
Alibaba 5%
$19,305 Vol.
$19,305 Vol.
31 oct 2026
Anthropic
64%
OpenAI
22%
SpaceXAI
5%
Alibaba
5%
DeepSeek
3%
Moonshot
2%
Z.ai
2%
2%
Poolside
1%
Meta
1%
ByteDance
1%
Xiaomi
1%
Mistral
1%
Thinky
<1%
Tencent
<1%
MiniMax
<1%
Anthropic 63.5%
OpenAI 22%
SpaceXAI 4.7%
Alibaba 5%
$19,305 Vol.
$19,305 Vol.
31 oct 2026
Anthropic
$3,144 Vol.
64%
OpenAI
$1,405 Vol.
22%
SpaceXAI
$626 Vol.
5%
Alibaba
$1,846 Vol.
5%
DeepSeek
$672 Vol.
3%
Moonshot
$4,931 Vol.
2%
Z.ai
$645 Vol.
2%
$669 Vol.
2%
Poolside
$969 Vol.
1%
Meta
$787 Vol.
1%
ByteDance
$660 Vol.
1%
Xiaomi
$409 Vol.
1%
Mistral
$794 Vol.
1%
Thinky
$656 Vol.
<1%
Tencent
$603 Vol.
<1%
MiniMax
$489 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 October 31, 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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’s recent launch of Claude Fable 5.1 and Mythos 5.1 in early September, paired with ongoing Claude Code updates including browser integration and design-to-code pipelines, has solidified its position as the frontrunner for second place on Code Arena’s WebDev leaderboard behind OpenAI’s newly released GPT-6 Astra. Traders see these agentic coding improvements and strong performance on real-world frontend and full-stack tasks as sustaining Anthropic’s edge through October. OpenAI’s 22.5% implied probability reflects Astra’s current top score, while lower odds for labs like Google, Meta, and others align with slower recent gains in community-voted web development benchmarks. Key catalysts ahead include further model iterations or leaderboard shifts before month-end.
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 October 31, 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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 abierto: Aug 12, 2026, 7:56 PM ET
Volumen
$19,305Fecha de finalización
1 nov 2026Mercado abierto
Aug 12, 2026, 7:56 PM ETResolver
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 October 31, 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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’s recent launch of Claude Fable 5.1 and Mythos 5.1 in early September, paired with ongoing Claude Code updates including browser integration and design-to-code pipelines, has solidified its position as the frontrunner for second place on Code Arena’s WebDev leaderboard behind OpenAI’s newly released GPT-6 Astra. Traders see these agentic coding improvements and strong performance on real-world frontend and full-stack tasks as sustaining Anthropic’s edge through October. OpenAI’s 22.5% implied probability reflects Astra’s current top score, while lower odds for labs like Google, Meta, and others align with slower recent gains in community-voted web development benchmarks. Key catalysts ahead include further model iterations or leaderboard shifts before month-end.
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 October 31, 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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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.
Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.
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".
Volumen
$19,305Fecha de finalización
1 nov 2026Mercado abierto
Aug 12, 2026, 7:56 PM ETResolver
0x69c47De9D...Anthropic’s recent launch of Claude Fable 5.1 and Mythos 5.1 in early September, paired with ongoing Claude Code updates including browser integration and design-to-code pipelines, has solidified its position as the frontrunner for second place on Code Arena’s WebDev leaderboard behind OpenAI’s newly released GPT-6 Astra. Traders see these agentic coding improvements and strong performance on real-world frontend and full-stack tasks as sustaining Anthropic’s edge through October. OpenAI’s 22.5% implied probability reflects Astra’s current top score, while lower odds for labs like Google, Meta, and others align with slower recent gains in community-voted web development benchmarks. Key catalysts ahead include further model iterations or leaderboard shifts before month-end.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · ActualizadoRelacionado
Will Alibaba be the third-best Code Arena | WebDev AI lab at the end of October 2026?
32%
¿Será Anthropic el segundo mejor laboratorio de IA para desarrollo web en Code Arena a finales de septiembre de 2026?
78%
Sí
¿Será SpaceXAI el tercer mejor laboratorio de IA Code Arena | WebDev al final de septiembre de 2026?
34%
Sí
Cuidado con los enlaces externos.
Cuidado con los enlaces externos.
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