claude-opus-4-6-thinking
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Understand this market
This market asks which AI model will be ranked number one on a specific public leaderboard called Arena.ai on August 10, 2026. The leaderboard ranks AI models based on how real users rate them in head-to-head text conversations. Right now the market believes claude-opus-4-6-thinking is most likely to hold that top spot, but a full 38% chance goes to 'Other', meaning some model not individually listed here could win instead.
On August 10, 2026 at 12:00 PM Eastern Time, someone checks the Arena.ai Text Arena Overall leaderboard with style control off and no adjustments applied. Whichever model sits at rank 1 at that exact moment wins. If two models tie on rank, the tiebreaker goes to the higher underlying score, then alphabetical order. One important edge case: if the Arena.ai site is down that day, the market waits until it comes back online. If the site shuts down permanently, the market resolves to 'Other'.
None of the provided news headlines relate to this market. They cover unrelated topics like political protests and entertainment. There is no relevant recent AI news to point to here. The kind of development that would matter is a new top-ranked model appearing on the Arena.ai leaderboard, or a major update to an existing model that shifts its ranking significantly.
The AI model landscape changes fast, and that is the core challenge. A new model from any major lab could launch before August 2026 and immediately climb to the top of the leaderboard, which is exactly what the 38% 'Other' probability reflects. Arena rankings also shift gradually as more users submit ratings, so a model leading today can slip later. Over a full year, multiple rounds of new releases and user voting make the top position genuinely hard to forecast with confidence.
Order Book
claude-opus-4-6-thinking
Resolution Criteria
This market will resolve according to the model that has the highest arena rank based on the arena.ai Text Arena (Overall) when the table under the "Leaderboard" tab is checked on the specified date, 12:00 PM ET. 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".
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claude-opus-4-6-thinking
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