Anthropic leads trader sentiment for second place on the Code Arena WebDev leaderboard at end-September because OpenAI’s GPT-6 Astra claimed first with 1,797 points shortly after its September 3 launch, leaving Anthropic’s Claude Fable 5.1 in second at 1,762. The crowdsourced Elo system evaluates real-world frontend coding tasks involving multi-step reasoning and tool use, where Anthropic’s recent Fable 5.1 release had briefly topped the board before the overtake. Chinese labs such as Alibaba and Moonshot trail further back, while the 20-day window to resolution limits opportunities for major shifts absent new model drops or significant vote swings. Market-implied odds reflect this stable gap and the established competitive positioning between the two leading AI labs.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · AktualisiertAnthropic 78.8%
OpenAI 17.4%
Alibaba 2.9%
Moonshot 2.6%
$68,961 Vol.
$68,961 Vol.
30. Sep. 2026
Anthropic
79%
OpenAI
17%
Alibaba
3%
Moonshot
3%
SpaceXAI
1%
Tencent
<1%
Z.ai
<1%
Meta
<1%
<1%
ByteDance
<1%
MiniMax
<1%
Xiaomi
<1%
DeepSeek
<1%
Thinky
<1%
Poolside
<1%
Mistral
<1%
Anthropic 78.8%
OpenAI 17.4%
Alibaba 2.9%
Moonshot 2.6%
$68,961 Vol.
$68,961 Vol.
30. Sep. 2026
Anthropic
$13,764 Vol.
79%
OpenAI
$8,032 Vol.
17%
Alibaba
$16,925 Vol.
3%
Moonshot
$12,101 Vol.
3%
SpaceXAI
$2,291 Vol.
1%
Tencent
$1,731 Vol.
<1%
Z.ai
$1,852 Vol.
<1%
Meta
$1,699 Vol.
<1%
$1,642 Vol.
<1%
ByteDance
$3,054 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".Anthropic leads trader sentiment for second place on the Code Arena WebDev leaderboard at end-September because OpenAI’s GPT-6 Astra claimed first with 1,797 points shortly after its September 3 launch, leaving Anthropic’s Claude Fable 5.1 in second at 1,762. The crowdsourced Elo system evaluates real-world frontend coding tasks involving multi-step reasoning and tool use, where Anthropic’s recent Fable 5.1 release had briefly topped the board before the overtake. Chinese labs such as Alibaba and Moonshot trail further back, while the 20-day window to resolution limits opportunities for major shifts absent new model drops or significant vote swings. Market-implied odds reflect this stable gap and the established competitive positioning between the two leading AI labs.
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".
Markt eröffnet: Jul 24, 2026, 7:45 PM ET
Volumen
$68,961Enddatum
1. Okt. 2026Markt eröffnet
Jul 24, 2026, 7:45 PM ETAbwicklungsquelle
https://arena.ai/leaderboard/code/webdev?rankBy=labsAbwickler
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 leads trader sentiment for second place on the Code Arena WebDev leaderboard at end-September because OpenAI’s GPT-6 Astra claimed first with 1,797 points shortly after its September 3 launch, leaving Anthropic’s Claude Fable 5.1 in second at 1,762. The crowdsourced Elo system evaluates real-world frontend coding tasks involving multi-step reasoning and tool use, where Anthropic’s recent Fable 5.1 release had briefly topped the board before the overtake. Chinese labs such as Alibaba and Moonshot trail further back, while the 20-day window to resolution limits opportunities for major shifts absent new model drops or significant vote swings. Market-implied odds reflect this stable gap and the established competitive positioning between the two leading AI labs.
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".
Volumen
$68,961Enddatum
1. Okt. 2026Markt eröffnet
Jul 24, 2026, 7:45 PM ETAbwicklungsquelle
https://arena.ai/leaderboard/code/webdev?rankBy=labsAbwickler
0x69c47De9D...Anthropic leads trader sentiment for second place on the Code Arena WebDev leaderboard at end-September because OpenAI’s GPT-6 Astra claimed first with 1,797 points shortly after its September 3 launch, leaving Anthropic’s Claude Fable 5.1 in second at 1,762. The crowdsourced Elo system evaluates real-world frontend coding tasks involving multi-step reasoning and tool use, where Anthropic’s recent Fable 5.1 release had briefly topped the board before the overtake. Chinese labs such as Alibaba and Moonshot trail further back, while the 20-day window to resolution limits opportunities for major shifts absent new model drops or significant vote swings. Market-implied odds reflect this stable gap and the established competitive positioning between the two leading AI labs.
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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