Claude Opus 5, released July 24, 2026, anchors current market-implied odds through its strong benchmark leadership on agentic coding, knowledge work, and novel problem-solving tasks. Independent evaluations place the model at or near the top of intelligence indices, with standout results on Frontier-Bench, ARC-AGI-3, OSWorld 2.0, and GDPval-AA that exceed prior Opus versions and often match or surpass pricier alternatives like Fable 5 at half the token cost. The 1M-token context window, adaptive effort settings (high and max), and efficiency gains have positioned it as the practical daily driver for developers and enterprises, while competitors such as GPT-5.6 Sol trail on several key metrics. No major new releases have altered this positioning in the past month.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updatedclaude-opus-5-high 67%
claude-opus-5-max 27%
Other 6.8%
claude-opus-4-6-high 7%
claude-opus-5-high
67%
claude-opus-5-max
27%
Other
7%
claude-opus-4-6-high
7%
claude-opus-5-high 67%
claude-opus-5-max 27%
Other 6.8%
claude-opus-4-6-high 7%
claude-opus-5-high
67%
claude-opus-5-max
27%
Other
7%
claude-opus-4-6-high
7%
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control with style control off (Adjustments: None) 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.
No new model will be added to this market after market creation. Any model not explicitly listed in this market will be encompassed under the "Other" option.
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 model names as listed in this market group (full string, including suffixes such as “-high” and “-max”) will be used as a final tiebreaker (e.g., if two models remain tied, “claude-opus-5-high” would be ranked ahead of “claude-opus-5-max”). This market will resolve to the model that comes first according to this order.
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 21, 2026, 2:42 PM ET
Resolver
0x69c47De9D...Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control with style control off (Adjustments: None) 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.
No new model will be added to this market after market creation. Any model not explicitly listed in this market will be encompassed under the "Other" option.
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 model names as listed in this market group (full string, including suffixes such as “-high” and “-max”) will be used as a final tiebreaker (e.g., if two models remain tied, “claude-opus-5-high” would be ranked ahead of “claude-opus-5-max”). This market will resolve to the model that comes first according to this order.
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".
Resolver
0x69c47De9D...Claude Opus 5, released July 24, 2026, anchors current market-implied odds through its strong benchmark leadership on agentic coding, knowledge work, and novel problem-solving tasks. Independent evaluations place the model at or near the top of intelligence indices, with standout results on Frontier-Bench, ARC-AGI-3, OSWorld 2.0, and GDPval-AA that exceed prior Opus versions and often match or surpass pricier alternatives like Fable 5 at half the token cost. The 1M-token context window, adaptive effort settings (high and max), and efficiency gains have positioned it as the practical daily driver for developers and enterprises, while competitors such as GPT-5.6 Sol trail on several key metrics. No major new releases have altered this positioning in the past month.
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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