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Tech·AI

Which company has the best AI Agent end of September?

icon for Which company has the best AI Agent end of September?
Tech·AI

Which company has the best AI Agent end of September?

Aug 31

Sep 30

Oct 31

Aug 31

Sep 30

Oct 31

Anthropic 84%

OpenAI 14%

Meta 2.4%

SpaceXAI 1.5%

Polymarket

$41,396 Vol.

Anthropic 84%

OpenAI 14%

Meta 2.4%

SpaceXAI 1.5%

Polymarket

$41,396 Vol.

icon for Anthropic

Anthropic

$23,617 Vol.

84%

icon for OpenAI

OpenAI

$6,314 Vol.

14%

icon for Meta

Meta

$783 Vol.

2%

icon for SpaceXAI

SpaceXAI

$1,000 Vol.

2%

icon for Z.ai

Z.ai

$684 Vol.

1%

icon for Alibaba

Alibaba

$679 Vol.

1%

icon for Google

Google

$679 Vol.

1%

icon for Moonshot

Moonshot

$742 Vol.

1%

icon for DeepSeek

DeepSeek

$679 Vol.

1%

icon for MiniMax

MiniMax

$751 Vol.

1%

icon for Nvidia

Nvidia

$706 Vol.

1%

icon for ByteDance

ByteDance

$704 Vol.

1%

icon for Baidu

Baidu

$741 Vol.

1%

icon for Mistral

Mistral

$685 Vol.

1%

icon for Microsoft

Microsoft

$681 Vol.

1%

icon for Meituan

Meituan

$736 Vol.

<1%

icon for Amazon

Amazon

$678 Vol.

<1%

icon for Xiaomi

Xiaomi

$539 Vol.

<1%

This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET. 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. 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.Anthropic’s strong 83.5% implied probability reflects its recent Claude Opus 5 and Sonnet 5 releases in July 2026, which emphasize long-running agents, multi-agent orchestration, and reliable tool use in enterprise workflows. Updates to Claude Tag for proactive Slack interactions and managed agent features like memory and sandboxed execution have reinforced leadership in agentic benchmarks for coding and autonomous task completion. OpenAI’s 14% odds stem from ongoing Agents SDK enhancements and ChatGPT Work rollout, though these trail in demonstrated multi-step reliability and conflict resolution among agents. Lower probabilities for Meta, Google, and others highlight less differentiated progress in production-grade agent harnesses ahead of the September resolution.

This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET.

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.

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.
Volume
$41,396
End Date
Sep 30, 2026
Market Opened
Jul 20, 2026, 7:06 PM ET

Resolver

0x69c47De9D...
This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET. 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. 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.
This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET. 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. 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.Anthropic’s strong 83.5% implied probability reflects its recent Claude Opus 5 and Sonnet 5 releases in July 2026, which emphasize long-running agents, multi-agent orchestration, and reliable tool use in enterprise workflows. Updates to Claude Tag for proactive Slack interactions and managed agent features like memory and sandboxed execution have reinforced leadership in agentic benchmarks for coding and autonomous task completion. OpenAI’s 14% odds stem from ongoing Agents SDK enhancements and ChatGPT Work rollout, though these trail in demonstrated multi-step reliability and conflict resolution among agents. Lower probabilities for Meta, Google, and others highlight less differentiated progress in production-grade agent harnesses ahead of the September resolution.

This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET.

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.

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.
Volume
$41,396
End Date
Sep 30, 2026
Market Opened
Jul 20, 2026, 7:06 PM ET

Resolver

0x69c47De9D...
This market will resolve according to the company that owns the model that has the highest rank based on the Agent Arena Leaderboard (https://arena.ai/leaderboard/agent) when the table under "Agent Arena" filtered for "Models" is checked on September 30, 2026, 12:00 PM ET. 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. 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.

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Frequently Asked Questions

"Which company has the best AI Agent end of September?" is a prediction market on Polymarket with 18 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Anthropic" at 84%, followed by "OpenAI" at 14%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 84¢ implies that the market collectively assigns a 84% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Which company has the best AI Agent end of September?" has generated $41.4K in total trading volume since the market launched on Jul 20, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Which company has the best AI Agent end of September?," browse the 18 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Which company has the best AI Agent end of September?" is "Anthropic" at 84%, meaning the market assigns a 84% chance to that outcome. The next closest outcome is "OpenAI" at 14%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Which company has the best AI Agent end of September?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.