OpenAI’s GPT-6 Astra launch in early September secured the top Code Arena WebDev spot with a 1,797 Elo rating, just 35 points ahead of Anthropic’s Claude Fable 5.1 and driving tight market-implied odds for second place. Trader sentiment reflects the narrow gap between these leaders alongside rapid gains from Chinese labs like Moonshot’s Kimi K3 and Alibaba’s Qwen variants, which have closed performance and cost differentials on the Pareto frontier for agentic frontend and fullstack tasks. Meta’s Muse Spark updates and ongoing community-voted evaluations on iterative coding workflows keep the field fluid, with new model releases from multiple labs likely to shift rankings before November resolution.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jourAnthropic 47%
SpaceXAI 22.9%
OpenAI 21%
Google 14%

Anthropic
47%

SpaceXAI
23%

OpenAI
21%

13%

Z.ai
12%

DeepSeek
11%

Alibaba
9%

Meta
8%

MiniMax
6%

ByteDance
5%

Poolside
4%

Mistral
3%

Moonshot
2%

Xiaomi
2%

Thinky
2%

Tencent
12%
Anthropic 47%
SpaceXAI 22.9%
OpenAI 21%
Google 14%

Anthropic
47%

SpaceXAI
23%

OpenAI
21%

13%

Z.ai
12%

DeepSeek
11%

Alibaba
9%

Meta
8%

MiniMax
6%

ByteDance
5%

Poolside
4%

Mistral
3%

Moonshot
2%

Xiaomi
2%

Thinky
2%

Tencent
12%
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".
Marché ouvert : Sep 17, 2026, 8:13 PM ET
Résolveur
0x69c47De9D...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".
Résolveur
0x69c47De9D...OpenAI’s GPT-6 Astra launch in early September secured the top Code Arena WebDev spot with a 1,797 Elo rating, just 35 points ahead of Anthropic’s Claude Fable 5.1 and driving tight market-implied odds for second place. Trader sentiment reflects the narrow gap between these leaders alongside rapid gains from Chinese labs like Moonshot’s Kimi K3 and Alibaba’s Qwen variants, which have closed performance and cost differentials on the Pareto frontier for agentic frontend and fullstack tasks. Meta’s Muse Spark updates and ongoing community-voted evaluations on iterative coding workflows keep the field fluid, with new model releases from multiple labs likely to shift rankings before November resolution.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jour
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