TOTAL VOLUME:
$97.5b
24H VOL:
$264,423,826
24H TRANSACTIONS:
951,878,243
OPEN INTEREST:
$2,171,275,957
831,219
Markets across
15,133
events
MATCHED EVENTS:
973
PLATFORM COVERAGE:
5
Polymarket:
45%
VS.
Kalshi:
55%
Time left: 15d:08h:34m
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This market will resolve according to the company which owns the model which has the highest arena rank based off the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on July 31, 2026, 12:00 PM ET. Results from the "Rank" section on the Leaderboard tab of https://lmarena.ai/leaderboard/text with the style control off 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 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 “xAI”). This market will resolve based on the company that occupies first place under this ranking system. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.
This market will resolve according to the company which owns the model which has the highest arena rank based off the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on July 31, 2026, 12:00 PM ET. Results from the "Rank" section on the Leaderboard tab of https://lmarena.ai/leaderboard/text with the style control off 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 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 “xAI”). This market will resolve based on the company that occupies first place under this ranking system. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.
Prediction market odds often diverge from traditional analyst forecasts because they reflect real-money incentives and continuous price discovery rather than periodic reports. In this market, traders are directly wagering on which company will hold the best AI model by the end date, creating dynamic odds that respond immediately to product launches, research papers, and performance benchmarks. Analyst predictions, by contrast, tend to be more static and may lag behind rapid developments in the AI space. The market mechanism rewards accurate foresight, making odds a complementary signal to expert opinion for tracking competitive positioning among leading AI firms.
On Opinion, this market is priced through continuous order-book matching, where traders buy and sell shares representing each potential outcome. On Opinion, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each company outcome has its own contract, and the price of each contract reflects the collective probability assigned by the market. As new information surfaces—such as model performance comparisons or capability announcements—traders adjust their positions, moving prices up or down. The current leading outcome reflects the highest probability assigned by active traders, with prices converging toward consensus as the resolution date draws near.
This market resolves around Aug 1, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winning company will be determined by recognized assessments of AI model performance and capability at that time, drawing on industry benchmarks, published evaluations, and expert consensus. Resolution hinges on clear, documented evidence of which organization's model is widely acknowledged as the best available. Traders should monitor major AI releases, benchmark results, and industry commentary in the weeks leading up to the end date to anticipate how the market may shift.
Major catalysts include new model releases from leading AI companies, performance on standardized benchmarks, and published research demonstrating capability breakthroughs. Announcements of significant partnerships, regulatory developments affecting AI deployment, or public comparisons by independent evaluators can shift trader sentiment rapidly. Earnings calls and investor presentations where companies discuss AI progress often trigger repricing. Media coverage highlighting one company's technical advantages or setbacks can also influence odds. Traders should watch for model releases, academic papers, industry conferences, and competitive announcements that could reshape perceptions of which organization holds the strongest AI model heading into the resolution window.
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