Anthropic's Claude series, including the recently released Opus 5, Mythos 5, and Fable 5 large language models, currently dominates independent benchmarks for reasoning, coding, and overall quality as of mid-August 2026. This positions the company with the strongest market-implied odds at 67.5% for holding the top AI model by end of October. Traders appear to weigh Anthropic's consistent edge in enterprise-grade capabilities and safety-focused iterations against slower momentum from competitors like OpenAI's GPT-5.6 or Google's offerings. Key upcoming catalysts include any major model updates or new benchmark results before the resolution date, though product timelines in AI development can shift rapidly.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic 68%
Meituan 13.0%
Meta 7%
OpenAI 6%
NEW
NEW
Oct 31, 2026
Anthropic
68%
Meituan
13%
Meta
7%
OpenAI
6%
DeepSeek
6%
SpaceXAI
4%
4%
Alibaba
4%
Nvidia
4%
StepFun
3%
MiniMax
3%
Z.ai
3%
Xiaomi
3%
ByteDance
3%
Moonshot
3%
Mistral
3%
Tencent
1%
Microsoft
19%
Baidu
1%
Thinky
9%
Amazon
14%
Anthropic 68%
Meituan 13.0%
Meta 7%
OpenAI 6%
NEW
NEW
Oct 31, 2026
Anthropic
$255 Vol.
68%
Meituan
$110 Vol.
13%
Meta
$92 Vol.
7%
OpenAI
$39 Vol.
6%
DeepSeek
$44 Vol.
6%
SpaceXAI
$39 Vol.
4%
$39 Vol.
4%
Alibaba
$39 Vol.
4%
Nvidia
$106 Vol.
4%
StepFun
$77 Vol.
3%
MiniMax
$110 Vol.
3%
Z.ai
$47 Vol.
3%
Xiaomi
$152 Vol.
3%
ByteDance
$93 Vol.
3%
Moonshot
$39 Vol.
3%
Mistral
$112 Vol.
3%
Tencent
$110 Vol.
1%
Microsoft
$108 Vol.
19%
Baidu
$54 Vol.
1%
Thinky
$110 Vol.
9%
Amazon
$106 Vol.
14%
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 October 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.
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 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's Claude series, including the recently released Opus 5, Mythos 5, and Fable 5 large language models, currently dominates independent benchmarks for reasoning, coding, and overall quality as of mid-August 2026. This positions the company with the strongest market-implied odds at 67.5% for holding the top AI model by end of October. Traders appear to weigh Anthropic's consistent edge in enterprise-grade capabilities and safety-focused iterations against slower momentum from competitors like OpenAI's GPT-5.6 or Google's offerings. Key upcoming catalysts include any major model updates or new benchmark results before the resolution date, though product timelines in AI development can shift rapidly.
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 October 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.
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 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.
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 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: Aug 12, 2026, 8:03 PM ET
Volume
$1,880End Date
Oct 31, 2026Market Opened
Aug 12, 2026, 8:03 PM ETResolver
0x69c47De9D...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 October 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.
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 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's Claude series, including the recently released Opus 5, Mythos 5, and Fable 5 large language models, currently dominates independent benchmarks for reasoning, coding, and overall quality as of mid-August 2026. This positions the company with the strongest market-implied odds at 67.5% for holding the top AI model by end of October. Traders appear to weigh Anthropic's consistent edge in enterprise-grade capabilities and safety-focused iterations against slower momentum from competitors like OpenAI's GPT-5.6 or Google's offerings. Key upcoming catalysts include any major model updates or new benchmark results before the resolution date, though product timelines in AI development can shift rapidly.
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 October 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.
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 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.
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 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
$1,880End Date
Oct 31, 2026Market Opened
Aug 12, 2026, 8:03 PM ETResolver
0x69c47De9D...Anthropic's Claude series, including the recently released Opus 5, Mythos 5, and Fable 5 large language models, currently dominates independent benchmarks for reasoning, coding, and overall quality as of mid-August 2026. This positions the company with the strongest market-implied odds at 67.5% for holding the top AI model by end of October. Traders appear to weigh Anthropic's consistent edge in enterprise-grade capabilities and safety-focused iterations against slower momentum from competitors like OpenAI's GPT-5.6 or Google's offerings. Key upcoming catalysts include any major model updates or new benchmark results before the resolution date, though product timelines in AI development can shift rapidly.
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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