Recent model releases have fragmented trader views on the second-best AI lab heading into late November 2026. Anthropic’s Claude Fable 5.1 and Mythos variants currently top several leaderboards with strong agentic and coding performance, while OpenAI’s GPT-6 Astra delivers competitive long-context and cybersecurity results shortly after launch. Google’s Gemini 3.8 Flash updates and Meta’s Muse Spark iterations add pressure through speed and integration advantages, yet Chinese labs such as Moonshot, DeepSeek, and ByteDance continue closing capability gaps at lower cost, boosting their implied odds. With no dominant runner-up and benchmarks evolving quickly, market-implied probabilities reflect uncertainty over which lab’s next capability jump or efficiency gain will consolidate second place before year-end resolution.
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 AI Lab end of November?
Google 30%
DeepSeek 29%
Moonshot 26%
StepFun 23%

30%

DeepSeek
29%

Moonshot
26%

StepFun
23%

Meta
22%

Mistral
20%

Amazon
17%

Microsoft
16%

MiniMax
16%

Z.ai
15%

OpenAI
15%

ByteDance
14%

Anthropic
12%

Xiaomi
12%

Nvidia
9%

Alibaba
8%

SpaceXAI
8%

Thinky
7%

Tencent
6%

Baidu
5%

Meituan
4%
Google 30%
DeepSeek 29%
Moonshot 26%
StepFun 23%

30%

DeepSeek
29%

Moonshot
26%

StepFun
23%

Meta
22%

Mistral
20%

Amazon
17%

Microsoft
16%

MiniMax
16%

Z.ai
15%

OpenAI
15%

ByteDance
14%

Anthropic
12%

Xiaomi
12%

Nvidia
9%

Alibaba
8%

SpaceXAI
8%

Thinky
7%

Tencent
6%

Baidu
5%

Meituan
4%
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.
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 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".
Binuksan ang Market: Sep 17, 2026, 8:09 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.
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 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".
Resolver
0x69c47De9D...Recent model releases have fragmented trader views on the second-best AI lab heading into late November 2026. Anthropic’s Claude Fable 5.1 and Mythos variants currently top several leaderboards with strong agentic and coding performance, while OpenAI’s GPT-6 Astra delivers competitive long-context and cybersecurity results shortly after launch. Google’s Gemini 3.8 Flash updates and Meta’s Muse Spark iterations add pressure through speed and integration advantages, yet Chinese labs such as Moonshot, DeepSeek, and ByteDance continue closing capability gaps at lower cost, boosting their implied odds. With no dominant runner-up and benchmarks evolving quickly, market-implied probabilities reflect uncertainty over which lab’s next capability jump or efficiency gain will consolidate second place before year-end resolution.
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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