Anthropic holds the strongest market-implied position for delivering the leading AI agent by late November 2026, driven by recent benchmark dominance and practical agent releases. Claude variants such as Fable 5.1 and Opus 5 currently top agentic leaderboards measuring tool use, long-horizon task completion, and error recovery, while the company’s August metrics showed its models leading 26% of internal R&D work and supporting roughly 30,000 concurrent agents under monitored oversight. New offerings including Claude Commerce Agents, Managed Agents with self-improvement features, and expanded Claude Code tooling have reinforced enterprise preference for reliable, safety-focused agent workflows. OpenAI’s GPT-6 Astra remains competitive on speed and ecosystem breadth but trails in several agent-specific evaluations, leaving lower probabilities for Google, Alibaba, and other labs absent major near-term breakthroughs.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 73%
OpenAI 16%
Google 6.2%
Alibaba 5.3%

Anthropic
73%

OpenAI
16%

6%

Alibaba
5%

Z.ai
4%

Meta
2%

SpaceXAI
1%

DeepSeek
1%

MiniMax
1%

Nvidia
1%

Moonshot
1%

Xiaomi
1%

ByteDance
1%

Baidu
1%

Amazon
1%

Mistral
1%

Meituan
1%

Microsoft
1%

Tencent
1%
Anthropic 73%
OpenAI 16%
Google 6.2%
Alibaba 5.3%

Anthropic
73%

OpenAI
16%

6%

Alibaba
5%

Z.ai
4%

Meta
2%

SpaceXAI
1%

DeepSeek
1%

MiniMax
1%

Nvidia
1%

Moonshot
1%

Xiaomi
1%

ByteDance
1%

Baidu
1%

Amazon
1%

Mistral
1%

Meituan
1%

Microsoft
1%

Tencent
1%
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first place under this ranking.
The resolution source for this market is the Agent Arena Leaderboard found at https://arena.ai/leaderboard/agent. 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 based on another resolution source.
Market Opened: Sep 17, 2026, 8:02 PM ET
Resolver
0x69c47De9D...Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Models" 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.
Models will be ordered primarily by their leaderboard rank at the market’s check time. 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 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 first place under this ranking.
The resolution source for this market is the Agent Arena Leaderboard found at https://arena.ai/leaderboard/agent. 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 based on another resolution source.
Resolver
0x69c47De9D...Anthropic holds the strongest market-implied position for delivering the leading AI agent by late November 2026, driven by recent benchmark dominance and practical agent releases. Claude variants such as Fable 5.1 and Opus 5 currently top agentic leaderboards measuring tool use, long-horizon task completion, and error recovery, while the company’s August metrics showed its models leading 26% of internal R&D work and supporting roughly 30,000 concurrent agents under monitored oversight. New offerings including Claude Commerce Agents, Managed Agents with self-improvement features, and expanded Claude Code tooling have reinforced enterprise preference for reliable, safety-focused agent workflows. OpenAI’s GPT-6 Astra remains competitive on speed and ecosystem breadth but trails in several agent-specific evaluations, leaving lower probabilities for Google, Alibaba, and other labs absent major near-term breakthroughs.
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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