Recent model releases and benchmark updates from early September 2026 anchor trader sentiment for the third-best AI lab by month-end. Anthropic’s Claude Fable 5.1 and related variants lead most independent indexes, followed closely by OpenAI’s newly rolled-out GPT-6 Astra, which posted strong gains in coding, agentic tasks, and efficiency metrics. Google’s rapid Gemini 3.8 Flash iterations and Meta’s Muse Spark 1.3 keep both in contention for the next tier, while cost-competitive Chinese labs such as Alibaba and DeepSeek gain ground on price-performance frontiers. Market-implied odds reflect this tight cluster, with traders weighing demonstrated capabilities, release cadence, and enterprise adoption signals over the final weeks before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOpenAI 26%
Google 24%
Alibaba 12%
Meta 8.1%
$52,879 Vol.
$52,879 Vol.

OpenAI
26%

24%

Alibaba
12%

Meta
8%

DeepSeek
4%

Moonshot
4%

Anthropic
2%

Z.ai
2%

Baidu
2%

SpaceXAI
1%

Microsoft
1%

Xiaomi
<1%

Nvidia
<1%

Thinky
<1%

MiniMax
<1%

Tencent
<1%

Amazon
<1%

ByteDance
<1%

Mistral
<1%

Meituan
<1%

StepFun
<1%
OpenAI 26%
Google 24%
Alibaba 12%
Meta 8.1%
$52,879 Vol.
$52,879 Vol.

OpenAI
26%

24%

Alibaba
12%

Meta
8%

DeepSeek
4%

Moonshot
4%

Anthropic
2%

Z.ai
2%

Baidu
2%

SpaceXAI
1%

Microsoft
1%

Xiaomi
<1%

Nvidia
<1%

Thinky
<1%

MiniMax
<1%

Tencent
<1%

Amazon
<1%

ByteDance
<1%

Mistral
<1%

Meituan
<1%

StepFun
<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 third 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".
Market Opened: Jul 24, 2026, 8:03 PM ET
Resolver
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 third 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".
Resolver
0x69c47De9D...Recent model releases and benchmark updates from early September 2026 anchor trader sentiment for the third-best AI lab by month-end. Anthropic’s Claude Fable 5.1 and related variants lead most independent indexes, followed closely by OpenAI’s newly rolled-out GPT-6 Astra, which posted strong gains in coding, agentic tasks, and efficiency metrics. Google’s rapid Gemini 3.8 Flash iterations and Meta’s Muse Spark 1.3 keep both in contention for the next tier, while cost-competitive Chinese labs such as Alibaba and DeepSeek gain ground on price-performance frontiers. Market-implied odds reflect this tight cluster, with traders weighing demonstrated capabilities, release cadence, and enterprise adoption signals over the final weeks before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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