**Anthropic holds the market-implied lead for second place on the Code Arena WebDev leaderboard because its Claude Fable 5.1 Max and Claude Opus 5 models currently rank #2 and #3 behind OpenAI’s newly released GPT-6 Astra Max.** OpenAI’s model claimed the top spot shortly after its early September 2026 launch, posting the highest Elo score (~1,800) on the crowdsourced arena that evaluates agentic frontend and full-stack web development tasks through community votes. Anthropic’s recent Fable 5.1 update delivered strong multi-step reasoning and tool-use performance, keeping its lab’s best entries clustered just behind the leader with no rival labs mounting a credible challenge in the remaining weeks. Chinese models such as Alibaba’s Qwen variants sit further back on the Pareto frontier, while the short timeline to September 30 limits the scope for disruptive new releases or rapid ranking shifts. Traders view the current ordering as stable given the demonstrated capabilities and limited upcoming catalysts.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateSecond-best Code Arena WebDev AI Lab end of September?
Second-best Code Arena WebDev AI Lab end of September?
Anthropic 80.7%
OpenAI 12.0%
Alibaba 1.8%
Moonshot 1.1%
$71,734 Vol.
$71,734 Vol.
Sep 30, 2026
Anthropic
81%
OpenAI
12%
Alibaba
2%
Moonshot
1%
SpaceXAI
1%
Tencent
<1%
Z.ai
<1%
<1%
Meta
<1%
ByteDance
<1%
MiniMax
<1%
Xiaomi
<1%
DeepSeek
<1%
Thinky
<1%
Poolside
<1%
Mistral
<1%
Anthropic 80.7%
OpenAI 12.0%
Alibaba 1.8%
Moonshot 1.1%
$71,734 Vol.
$71,734 Vol.
Sep 30, 2026
Anthropic
$14,391 Vol.
81%
OpenAI
$9,553 Vol.
12%
Alibaba
$17,037 Vol.
2%
Moonshot
$12,232 Vol.
1%
SpaceXAI
$2,384 Vol.
1%
Tencent
$1,824 Vol.
<1%
Z.ai
$1,945 Vol.
<1%
$1,736 Vol.
<1%
Meta
$1,709 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 holds the market-implied lead for second place on the Code Arena WebDev leaderboard because its Claude Fable 5.1 Max and Claude Opus 5 models currently rank #2 and #3 behind OpenAI’s newly released GPT-6 Astra Max.**
OpenAI’s model claimed the top spot shortly after its early September 2026 launch, posting the highest Elo score (~1,800) on the crowdsourced arena that evaluates agentic frontend and full-stack web development tasks through community votes. Anthropic’s recent Fable 5.1 update delivered strong multi-step reasoning and tool-use performance, keeping its lab’s best entries clustered just behind the leader with no rival labs mounting a credible challenge in the remaining weeks. Chinese models such as Alibaba’s Qwen variants sit further back on the Pareto frontier, while the short timeline to September 30 limits the scope for disruptive new releases or rapid ranking shifts. Traders view the current ordering as stable given the demonstrated capabilities and limited upcoming catalysts.
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".
Binuksan ang Market: Jul 24, 2026, 7:45 PM ET
Volume
$71,734Petsa ng Pagtatapos
Oct 1, 2026Binuksan ang Market
Jul 24, 2026, 7:45 PM ETResolution Source
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".**Anthropic holds the market-implied lead for second place on the Code Arena WebDev leaderboard because its Claude Fable 5.1 Max and Claude Opus 5 models currently rank #2 and #3 behind OpenAI’s newly released GPT-6 Astra Max.**
OpenAI’s model claimed the top spot shortly after its early September 2026 launch, posting the highest Elo score (~1,800) on the crowdsourced arena that evaluates agentic frontend and full-stack web development tasks through community votes. Anthropic’s recent Fable 5.1 update delivered strong multi-step reasoning and tool-use performance, keeping its lab’s best entries clustered just behind the leader with no rival labs mounting a credible challenge in the remaining weeks. Chinese models such as Alibaba’s Qwen variants sit further back on the Pareto frontier, while the short timeline to September 30 limits the scope for disruptive new releases or rapid ranking shifts. Traders view the current ordering as stable given the demonstrated capabilities and limited upcoming catalysts.
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
$71,734Petsa ng Pagtatapos
Oct 1, 2026Binuksan ang Market
Jul 24, 2026, 7:45 PM ETResolution Source
https://arena.ai/leaderboard/code/webdev?rankBy=labsResolver
0x69c47De9D...**Anthropic holds the market-implied lead for second place on the Code Arena WebDev leaderboard because its Claude Fable 5.1 Max and Claude Opus 5 models currently rank #2 and #3 behind OpenAI’s newly released GPT-6 Astra Max.** OpenAI’s model claimed the top spot shortly after its early September 2026 launch, posting the highest Elo score (~1,800) on the crowdsourced arena that evaluates agentic frontend and full-stack web development tasks through community votes. Anthropic’s recent Fable 5.1 update delivered strong multi-step reasoning and tool-use performance, keeping its lab’s best entries clustered just behind the leader with no rival labs mounting a credible challenge in the remaining weeks. Chinese models such as Alibaba’s Qwen variants sit further back on the Pareto frontier, while the short timeline to September 30 limits the scope for disruptive new releases or rapid ranking shifts. Traders view the current ordering as stable given the demonstrated capabilities and limited upcoming catalysts.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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