Recent frontier model releases in early September 2026 have intensified competition for second-best AI lab status by month-end. OpenAI’s GPT-6 Astra rollout emphasized agentic coding, computer use, and cybersecurity gains, while Anthropic’s Claude Fable 5.1 and Mythos 5.1 updates delivered benchmark jumps in terminal tasks and cost efficiencies. Google’s rapid Gemini 3.8 Flash series, including a Cyber variant, targets enterprise agentic workflows and vulnerability detection, leveraging its infrastructure scale. Meta’s Muse Spark 1.3 adds multimodal reasoning depth. These launches, alongside persistent Chinese lab progress on open-weight models, create closely matched implied probabilities around 25-39% for top contenders, with trader sentiment reflecting uncertainty over which lab’s capabilities and ecosystem traction will pull ahead by resolution.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoSecond-best AI Lab end of September?
Google 38%
OpenAI 21.6%
Anthropic 13.3%
Meta 4.7%
$79,046 Vol.
$79,046 Vol.

38%

OpenAI
22%

Anthropic
13%

Meta
5%

Alibaba
2%

Moonshot
1%

SpaceXAI
1%

Z.ai
1%

Xiaomi
<1%

DeepSeek
<1%

Baidu
<1%

Amazon
<1%

ByteDance
<1%

Nvidia
<1%

Thinky
<1%

MiniMax
<1%

Mistral
<1%

Meituan
<1%

Tencent
<1%

StepFun
<1%

Microsoft
<1%
Google 38%
OpenAI 21.6%
Anthropic 13.3%
Meta 4.7%
$79,046 Vol.
$79,046 Vol.

38%

OpenAI
22%

Anthropic
13%

Meta
5%

Alibaba
2%

Moonshot
1%

SpaceXAI
1%

Z.ai
1%

Xiaomi
<1%

DeepSeek
<1%

Baidu
<1%

Amazon
<1%

ByteDance
<1%

Nvidia
<1%

Thinky
<1%

MiniMax
<1%

Mistral
<1%

Meituan
<1%

Tencent
<1%

StepFun
<1%

Microsoft
<1%
Results from the "Lab Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control?rankBy=labs with style control off (Adjustments: None) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., if the two models are tied by exact arena score, “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 Text Arena (Overall). 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 Aberto: Jul 24, 2026, 8:03 PM ET
Fonte de resolução
https://arena.ai/leaderboard/text/overall-no-style-control?rankBy=labsResolver
0x69c47De9D...Results from the "Lab Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control?rankBy=labs with style control off (Adjustments: None) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., if the two models are tied by exact arena score, “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 Text Arena (Overall). 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".
Fonte de resolução
https://arena.ai/leaderboard/text/overall-no-style-control?rankBy=labsResolver
0x69c47De9D...Recent frontier model releases in early September 2026 have intensified competition for second-best AI lab status by month-end. OpenAI’s GPT-6 Astra rollout emphasized agentic coding, computer use, and cybersecurity gains, while Anthropic’s Claude Fable 5.1 and Mythos 5.1 updates delivered benchmark jumps in terminal tasks and cost efficiencies. Google’s rapid Gemini 3.8 Flash series, including a Cyber variant, targets enterprise agentic workflows and vulnerability detection, leveraging its infrastructure scale. Meta’s Muse Spark 1.3 adds multimodal reasoning depth. These launches, alongside persistent Chinese lab progress on open-weight models, create closely matched implied probabilities around 25-39% for top contenders, with trader sentiment reflecting uncertainty over which lab’s capabilities and ecosystem traction will pull ahead by resolution.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
Cuidado com os links externos.
Cuidado com os links externos.
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