**Anthropic leads market-implied odds at 65% for second place on the Code Arena WebDev leaderboard by end of October, driven by Claude Fable 5.1 sitting 35 points behind OpenAI’s newly launched GPT-6 Astra at the top.** The crowdsourced Elo-style rankings, based on over 650,000 human votes for agentic coding workflows on real frontend and full-stack web development tasks, reflect Anthropic’s strength in multi-step reasoning and iterative tool use. OpenAI’s September 3 release shifted the leaderboard, leaving Chinese labs like Alibaba’s Qwen variants and Moonshot’s Kimi models in the 1,600–1,685 range, well behind the top two. Traders appear to view Anthropic’s consistent positioning and recent model updates as the most stable path to second place, though further releases or benchmark volatility could still alter outcomes before resolution.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · AktualisiertAnthropic 65.0%
OpenAI 21%
SpaceXAI 4.8%
Alibaba 5%
$18,952 Vol.
$18,952 Vol.
31. Okt. 2026
Anthropic
65%
OpenAI
21%
SpaceXAI
5%
Alibaba
5%
DeepSeek
3%
2%
Moonshot
2%
Meta
2%
Poolside
1%
Z.ai
1%
ByteDance
1%
Xiaomi
1%
Mistral
1%
Tencent
<1%
Thinky
<1%
MiniMax
<1%
Anthropic 65.0%
OpenAI 21%
SpaceXAI 4.8%
Alibaba 5%
$18,952 Vol.
$18,952 Vol.
31. Okt. 2026
Anthropic
$3,005 Vol.
65%
OpenAI
$1,351 Vol.
21%
SpaceXAI
$585 Vol.
5%
Alibaba
$1,846 Vol.
5%
DeepSeek
$631 Vol.
3%
$669 Vol.
2%
Moonshot
$4,931 Vol.
2%
Meta
$709 Vol.
2%
Poolside
$969 Vol.
1%
Z.ai
$645 Vol.
1%
ByteDance
$660 Vol.
1%
Xiaomi
$409 Vol.
1%
Mistral
$794 Vol.
1%
Tencent
$603 Vol.
<1%
Thinky
$656 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 leads market-implied odds at 65% for second place on the Code Arena WebDev leaderboard by end of October, driven by Claude Fable 5.1 sitting 35 points behind OpenAI’s newly launched GPT-6 Astra at the top.** The crowdsourced Elo-style rankings, based on over 650,000 human votes for agentic coding workflows on real frontend and full-stack web development tasks, reflect Anthropic’s strength in multi-step reasoning and iterative tool use. OpenAI’s September 3 release shifted the leaderboard, leaving Chinese labs like Alibaba’s Qwen variants and Moonshot’s Kimi models in the 1,600–1,685 range, well behind the top two. Traders appear to view Anthropic’s consistent positioning and recent model updates as the most stable path to second place, though further releases or benchmark volatility could still alter outcomes before resolution.
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".
Markt eröffnet: Aug 12, 2026, 7:56 PM ET
Volumen
$18,952Enddatum
1. Nov. 2026Markt eröffnet
Aug 12, 2026, 7:56 PM ETAbwickler
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 leads market-implied odds at 65% for second place on the Code Arena WebDev leaderboard by end of October, driven by Claude Fable 5.1 sitting 35 points behind OpenAI’s newly launched GPT-6 Astra at the top.** The crowdsourced Elo-style rankings, based on over 650,000 human votes for agentic coding workflows on real frontend and full-stack web development tasks, reflect Anthropic’s strength in multi-step reasoning and iterative tool use. OpenAI’s September 3 release shifted the leaderboard, leaving Chinese labs like Alibaba’s Qwen variants and Moonshot’s Kimi models in the 1,600–1,685 range, well behind the top two. Traders appear to view Anthropic’s consistent positioning and recent model updates as the most stable path to second place, though further releases or benchmark volatility could still alter outcomes before resolution.
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
$18,952Enddatum
1. Nov. 2026Markt eröffnet
Aug 12, 2026, 7:56 PM ETAbwickler
0x69c47De9D...**Anthropic leads market-implied odds at 65% for second place on the Code Arena WebDev leaderboard by end of October, driven by Claude Fable 5.1 sitting 35 points behind OpenAI’s newly launched GPT-6 Astra at the top.** The crowdsourced Elo-style rankings, based on over 650,000 human votes for agentic coding workflows on real frontend and full-stack web development tasks, reflect Anthropic’s strength in multi-step reasoning and iterative tool use. OpenAI’s September 3 release shifted the leaderboard, leaving Chinese labs like Alibaba’s Qwen variants and Moonshot’s Kimi models in the 1,600–1,685 range, well behind the top two. Traders appear to view Anthropic’s consistent positioning and recent model updates as the most stable path to second place, though further releases or benchmark volatility could still alter outcomes before resolution.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert
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