Claude Opus 5 Max commands 95.3% implied probability because recent capability demonstrations, benchmark leadership, and consistent scaling improvements have positioned it ahead of prior Claude versions and competing frontier models. Traders view the release timing, safety alignment progress, and developer adoption metrics as decisive factors that reinforce its edge on the resolution date. Strong consensus leaves limited room for reversal, yet credible challenges could emerge from an unexpected late benchmark update, a superior model launch by another lab, or revised evaluation criteria that shift emphasis toward specialized tasks where alternatives hold an advantage.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updatedclaude-opus-5-max 97.4%
claude-opus-5-high 1.9%
Other 1.3%
claude-opus-4-6 <1%
$35,900 Vol.
$35,900 Vol.
claude-opus-5-max
97%
claude-opus-5-high
2%
Other
1%
claude-opus-4-6
1%
claude-fable-5
<1%
claude-opus-4-6-thinking
<1%
claude-opus-5-max 97.4%
claude-opus-5-high 1.9%
Other 1.3%
claude-opus-4-6 <1%
$35,900 Vol.
$35,900 Vol.
claude-opus-5-max
97%
claude-opus-5-high
2%
Other
1%
claude-opus-4-6
1%
claude-fable-5
<1%
claude-opus-4-6-thinking
<1%
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.
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 “-thinking”) will be used as a final tiebreaker (e.g., if two models remain tied, “claude-opus-4-6” would be ranked ahead of “claude-opus-4-6-thinking”). 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: Jul 31, 2026, 6:04 PM ET
Resolution Source
https://arena.ai/leaderboard/text/overall-no-style-controlResolver
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.
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 “-thinking”) will be used as a final tiebreaker (e.g., if two models remain tied, “claude-opus-4-6” would be ranked ahead of “claude-opus-4-6-thinking”). 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".
Resolution Source
https://arena.ai/leaderboard/text/overall-no-style-controlResolver
0x69c47De9D...Claude Opus 5 Max commands 95.3% implied probability because recent capability demonstrations, benchmark leadership, and consistent scaling improvements have positioned it ahead of prior Claude versions and competing frontier models. Traders view the release timing, safety alignment progress, and developer adoption metrics as decisive factors that reinforce its edge on the resolution date. Strong consensus leaves limited room for reversal, yet credible challenges could emerge from an unexpected late benchmark update, a superior model launch by another lab, or revised evaluation criteria that shift emphasis toward specialized tasks where alternatives hold an advantage.
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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