Traders see OpenAI as the clear frontrunner for second-best AI agent lab by end of August, reflected in the 90.5% market-implied probability. This consensus stems from OpenAI’s demonstrated progress with advanced reasoning models, improved tool-calling agents, and broad integration across developer platforms, which have maintained competitive edge in capability benchmarks and user adoption. Recent model updates and ecosystem momentum have reinforced this lead. Still, credible challenges remain if competitors like Anthropic or Google release superior agent systems with higher benchmark scores or if regulatory actions slow OpenAI’s deployment timelines before month-end resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOpenAI 91%
Moonshot 5.9%
Z.ai 3.0%
Anthropic <1%
$21,008 Vol.
$21,008 Vol.
Aug 31, 2026
OpenAI
91%
Moonshot
6%
Z.ai
3%
Anthropic
1%
Xiaomi
1%
SpaceXAI
<1%
Meta
<1%
Alibaba
<1%
<1%
DeepSeek
<1%
MiniMax
<1%
Nvidia
<1%
ByteDance
<1%
Baidu
<1%
Amazon
<1%
Mistral
<1%
Meituan
<1%
Microsoft
<1%
OpenAI 91%
Moonshot 5.9%
Z.ai 3.0%
Anthropic <1%
$21,008 Vol.
$21,008 Vol.
Aug 31, 2026
OpenAI
$4,926 Vol.
91%
Moonshot
$4,940 Vol.
6%
Z.ai
$1,600 Vol.
3%
Anthropic
$1,291 Vol.
1%
Xiaomi
$1,158 Vol.
1%
SpaceXAI
$438 Vol.
<1%
Meta
$378 Vol.
<1%
Alibaba
$715 Vol.
<1%
$363 Vol.
<1%
DeepSeek
$702 Vol.
<1%
MiniMax
$489 Vol.
<1%
Nvidia
$622 Vol.
<1%
ByteDance
$954 Vol.
<1%
Baidu
$592 Vol.
<1%
Amazon
$323 Vol.
<1%
Mistral
$450 Vol.
<1%
Meituan
$336 Vol.
<1%
Microsoft
$733 Vol.
<1%
This market will resolve according to the second-highest ranked Company based on the arena.ai Agent Arena Leaderboard when the table under "Agent Arena" filtered for "Labs" is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market.
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 which model is listed higher on 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., “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 Agent Arena Leaderboard. 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".Traders see OpenAI as the clear frontrunner for second-best AI agent lab by end of August, reflected in the 90.5% market-implied probability. This consensus stems from OpenAI’s demonstrated progress with advanced reasoning models, improved tool-calling agents, and broad integration across developer platforms, which have maintained competitive edge in capability benchmarks and user adoption. Recent model updates and ecosystem momentum have reinforced this lead. Still, credible challenges remain if competitors like Anthropic or Google release superior agent systems with higher benchmark scores or if regulatory actions slow OpenAI’s deployment timelines before month-end resolution.
This market will resolve according to the second-highest ranked Company based on the arena.ai Agent Arena Leaderboard when the table under "Agent Arena" filtered for "Labs" is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market.
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 which model is listed higher on 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., “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 Agent Arena Leaderboard. 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".
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market.
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 which model is listed higher on 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., “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 Agent Arena Leaderboard. 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: Aug 12, 2026, 7:39 PM ET
Volume
$21,008End Date
Aug 31, 2026Market Opened
Aug 12, 2026, 7:39 PM ETResolution Source
https://arena.ai/leaderboard/agentResolver
0x69c47De9D...This market will resolve according to the second-highest ranked Company based on the arena.ai Agent Arena Leaderboard when the table under "Agent Arena" filtered for "Labs" is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market.
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 which model is listed higher on 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., “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 Agent Arena Leaderboard. 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".Traders see OpenAI as the clear frontrunner for second-best AI agent lab by end of August, reflected in the 90.5% market-implied probability. This consensus stems from OpenAI’s demonstrated progress with advanced reasoning models, improved tool-calling agents, and broad integration across developer platforms, which have maintained competitive edge in capability benchmarks and user adoption. Recent model updates and ecosystem momentum have reinforced this lead. Still, credible challenges remain if competitors like Anthropic or Google release superior agent systems with higher benchmark scores or if regulatory actions slow OpenAI’s deployment timelines before month-end resolution.
This market will resolve according to the second-highest ranked Company based on the arena.ai Agent Arena Leaderboard when the table under "Agent Arena" filtered for "Labs" is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market.
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 which model is listed higher on 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., “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 Agent Arena Leaderboard. 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".
Results from the "Rank" column under the "Agent Arena" Leaderboard tab at https://arena.ai/leaderboard/agent filtered for "Labs" will be used to resolve this market.
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 which model is listed higher on 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., “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 Agent Arena Leaderboard. 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".
Volume
$21,008End Date
Aug 31, 2026Market Opened
Aug 12, 2026, 7:39 PM ETResolution Source
https://arena.ai/leaderboard/agentResolver
0x69c47De9D...Traders see OpenAI as the clear frontrunner for second-best AI agent lab by end of August, reflected in the 90.5% market-implied probability. This consensus stems from OpenAI’s demonstrated progress with advanced reasoning models, improved tool-calling agents, and broad integration across developer platforms, which have maintained competitive edge in capability benchmarks and user adoption. Recent model updates and ecosystem momentum have reinforced this lead. Still, credible challenges remain if competitors like Anthropic or Google release superior agent systems with higher benchmark scores or if regulatory actions slow OpenAI’s deployment timelines before month-end 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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