Anthropic leads market-implied odds at 65.5% for the best AI agent by end of October due to its recent enterprise-focused releases, including Claude Managed Agents in April and Claude 4.6 models that top SWE-bench for agentic coding workflows. The company's 2026 State of AI Agents Report highlights real-world deployments across hundreds of technical leaders, emphasizing scalable infrastructure and production-ready tools that outpace competitors in practical adoption. Recent negative developments around OpenAI's agent security incidents have contributed to its lower 8.5% odds, while other labs trail further behind. Traders appear to favor Anthropic's demonstrated progress in agent orchestration and enterprise integration over speculative timelines from rivals.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 66%
Baidu 8%
Moonshot 8%
OpenAI 7%

Anthropic
66%

Baidu
8%

Moonshot
8%

OpenAI
7%

ByteDance
5%

Alibaba
4%

Xiaomi
3%

3%

Meituan
2%

Meta
1%

MiniMax
1%

Z.ai
1%

SpaceXAI
1%

DeepSeek
1%

Nvidia
1%

Amazon
<1%

Mistral
<1%

Microsoft
<1%
Anthropic 66%
Baidu 8%
Moonshot 8%
OpenAI 7%

Anthropic
66%

Baidu
8%

Moonshot
8%

OpenAI
7%

ByteDance
5%

Alibaba
4%

Xiaomi
3%

3%

Meituan
2%

Meta
1%

MiniMax
1%

Z.ai
1%

SpaceXAI
1%

DeepSeek
1%

Nvidia
1%

Amazon
<1%

Mistral
<1%

Microsoft
<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: Aug 12, 2026, 7:52 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 leads market-implied odds at 65.5% for the best AI agent by end of October due to its recent enterprise-focused releases, including Claude Managed Agents in April and Claude 4.6 models that top SWE-bench for agentic coding workflows. The company's 2026 State of AI Agents Report highlights real-world deployments across hundreds of technical leaders, emphasizing scalable infrastructure and production-ready tools that outpace competitors in practical adoption. Recent negative developments around OpenAI's agent security incidents have contributed to its lower 8.5% odds, while other labs trail further behind. Traders appear to favor Anthropic's demonstrated progress in agent orchestration and enterprise integration over speculative timelines from rivals.
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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