**Anthropic holds overwhelming market-implied odds at 100% for the top AI model at the end of August because its Claude Fable 5, Opus 5, and related variants currently lead multiple live leaderboards, including LM Arena Elo rankings and composite benchmarks like BenchAlign and Humanity’s Last Exam.** These models have shown superior performance in reasoning, agentic coding, tool use, and complex problem-solving following mid-2026 releases, outpacing OpenAI’s GPT-5 series, Google’s Gemini variants, and other competitors on verified evaluations. Traders view this positioning as durable given the absence of comparable late-August breakthroughs elsewhere. The sole realistic challenge would involve an abrupt leaderboard update or precise resolution criteria—such as style-control specifics on arena.ai—favoring another lab’s model at the exact cutoff, though current data makes such an outcome highly improbable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 100.0%
Meta <1%
Google <1%
Moonshot <1%
$32,086 Vol.
$32,086 Vol.
Aug 31, 2026
Anthropic
Yes
Meta
No
No
Moonshot
No
OpenAI
No
Alibaba
No
SpaceXAI
No
Z.ai
No
Baidu
No
Xiaomi
No
DeepSeek
No
Bytedance
No
MiniMax
No
Thinky
No
Meituan
No
Mistral
No
Amazon
No
Nvidia
No
Tencent
No
StepFun
No
Microsoft
No
Anthropic 100.0%
Meta <1%
Google <1%
Moonshot <1%
$32,086 Vol.
$32,086 Vol.
Aug 31, 2026
Anthropic
$9,761 Vol.
Yes
Meta
$1,611 Vol.
No
$2,408 Vol.
No
Moonshot
$1,875 Vol.
No
OpenAI
$3,287 Vol.
No
Alibaba
$1,168 Vol.
No
SpaceXAI
$2,110 Vol.
No
Z.ai
$685 Vol.
No
Baidu
$985 Vol.
No
Xiaomi
$719 Vol.
No
DeepSeek
$1,329 Vol.
No
Bytedance
$609 Vol.
No
MiniMax
$690 Vol.
No
Thinky
$330 Vol.
No
Meituan
$939 Vol.
No
Mistral
$330 Vol.
No
Amazon
$774 Vol.
No
Nvidia
$344 Vol.
No
Tencent
$891 Vol.
No
StepFun
$738 Vol.
No
Microsoft
$505 Vol.
No
This market will resolve according to the company which owns the model which has the highest arena rank based on the arena.ai Text Arena (Overall) (Style Control On) when the table under the "Leaderboard" tab is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., 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 first 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".**Anthropic holds overwhelming market-implied odds at 100% for the top AI model at the end of August because its Claude Fable 5, Opus 5, and related variants currently lead multiple live leaderboards, including LM Arena Elo rankings and composite benchmarks like BenchAlign and Humanity’s Last Exam.** These models have shown superior performance in reasoning, agentic coding, tool use, and complex problem-solving following mid-2026 releases, outpacing OpenAI’s GPT-5 series, Google’s Gemini variants, and other competitors on verified evaluations. Traders view this positioning as durable given the absence of comparable late-August breakthroughs elsewhere. The sole realistic challenge would involve an abrupt leaderboard update or precise resolution criteria—such as style-control specifics on arena.ai—favoring another lab’s model at the exact cutoff, though current data makes such an outcome highly improbable.
This market will resolve according to the company which owns the model which has the highest arena rank based on the arena.ai Text Arena (Overall) (Style Control On) when the table under the "Leaderboard" tab is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., 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 first 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".
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., 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 first 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".
Market Opened: Jul 16, 2026, 11:09 PM ET
Volume
$32,086End Date
Sep 1, 2026Market Opened
Jul 16, 2026, 11:09 PM ETResolution Source
https://arena.ai/leaderboard/text/overallResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
This market will resolve according to the company which owns the model which has the highest arena rank based on the arena.ai Text Arena (Overall) (Style Control On) when the table under the "Leaderboard" tab is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., 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 first 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".**Anthropic holds overwhelming market-implied odds at 100% for the top AI model at the end of August because its Claude Fable 5, Opus 5, and related variants currently lead multiple live leaderboards, including LM Arena Elo rankings and composite benchmarks like BenchAlign and Humanity’s Last Exam.** These models have shown superior performance in reasoning, agentic coding, tool use, and complex problem-solving following mid-2026 releases, outpacing OpenAI’s GPT-5 series, Google’s Gemini variants, and other competitors on verified evaluations. Traders view this positioning as durable given the absence of comparable late-August breakthroughs elsewhere. The sole realistic challenge would involve an abrupt leaderboard update or precise resolution criteria—such as style-control specifics on arena.ai—favoring another lab’s model at the exact cutoff, though current data makes such an outcome highly improbable.
This market will resolve according to the company which owns the model which has the highest arena rank based on the arena.ai Text Arena (Overall) (Style Control On) when the table under the "Leaderboard" tab is checked on August 31, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., 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 first 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".
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and 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 their Arena score, including any underlying, unrounded, granular values reflected in the data below 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., 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 first 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".
Volume
$32,086End Date
Sep 1, 2026Market Opened
Jul 16, 2026, 11:09 PM ETResolution Source
https://arena.ai/leaderboard/text/overallResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
**Anthropic holds overwhelming market-implied odds at 100% for the top AI model at the end of August because its Claude Fable 5, Opus 5, and related variants currently lead multiple live leaderboards, including LM Arena Elo rankings and composite benchmarks like BenchAlign and Humanity’s Last Exam.** These models have shown superior performance in reasoning, agentic coding, tool use, and complex problem-solving following mid-2026 releases, outpacing OpenAI’s GPT-5 series, Google’s Gemini variants, and other competitors on verified evaluations. Traders view this positioning as durable given the absence of comparable late-August breakthroughs elsewhere. The sole realistic challenge would involve an abrupt leaderboard update or precise resolution criteria—such as style-control specifics on arena.ai—favoring another lab’s model at the exact cutoff, though current data makes such an outcome highly improbable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions