TOTAL VOLUME:
$117.2b
24H VOL:
$119,620,865
24H TRANSACTIONS:
1,380,975,298
OPEN INTEREST:
$1,195,396,953
341,524
Markets across
34,464
events
MATCHED EVENTS:
4,445
PLATFORM COVERAGE:
5
Polymarket:
42%
VS.
Kalshi:
58%
Anthropic
all
2 markets
Polymarket
99.3%
Kalshi
100%
consensus
99.7%
spread
99.3-100%
(0.7pp)
News
Positive
Negative
Neutral
Hover marker for details
Aug 21
Aug 22
Aug 23
Aug 24
Aug 25
Aug 26
Aug 28
Vol.
$1.8k
·
Resolves Aug 31, 2026
Time left: 02d:20h:26m
$
Trade on Polymarket
At 99.3¢ buys you 101 shares | Odds: 99% Total Payout: $101 | Net Profit: $1 Multiplier: 1.01x | ROI: 0.7% | APY: 134% 2 days to resolutionTrade on Kalshi
Join Kalshi and score $25 for your first trade.At 100¢ buys you 100 shares | Odds: 100% Total Payout: $100 | Net Profit: $0 Multiplier: 1.00x | ROI: 0% | APY: N/A Illiquid marketThis event group determines which company owns the AI model ranked #1 on the Arena.ai Text Arena Math leaderboard at the end of August 2026. Both Kalshi and Polymarket are betting on the same underlying outcome: the identity of the top-performing math AI model according to a shared, real-time leaderboard.
This market will resolve according to the company that owns the model that has the highest arena rank based on the arena.ai Text Arena (Math) when the table under the "Leaderboard" tab is checked on August 31, 2026, 12:00 PM ET. Results from the "Rank" column under the "Text Arena | Math" Leaderboard tab at https://arena.ai/leaderboard/text/math-no-style-control with style control off (Adjustments: None) and filtered for "Models" 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 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 (Math). 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 is determined by identifying which model holds the #1 position on the Arena AI Text Arena Leaderboard (Math) on July 31, 2026 at 10:00 AM ET. If multiple models are tied for the top rank, the publisher's official tie-breaking methodology is applied; if no official methodology exists, all tied models share the highest rank. When multiple candidates tie for the #1 position, each tied outcome's contract resolves to $1 divided by the number of tied candidates, rounded down.
Prediction markets like this one often diverge from traditional analyst reports because traders face direct financial incentive to forecast accurately, whereas published research may lag real-world developments. Market prices reflect aggregated information from participants with skin in the game, updating continuously as new model releases or benchmark results emerge. Analyst consensus tends to be slower-moving and sometimes anchored to older data. For emerging AI competitions, prediction markets can serve as a leading indicator of which companies insiders and informed traders expect to dominate, often ahead of formal third-party evaluations.
This market resolves around Aug 31, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winner will be determined by which company's model achieves the highest performance on Text Arena's standardized math benchmarks as of that date. Resolution hinges on official benchmark results and public announcements from the evaluation framework administrators. Traders should monitor Text Arena's official channels and participating companies' disclosures throughout August to track real-time performance metrics.
Major catalysts include new model releases or version updates from leading AI companies, public benchmark results, and announcements of Text Arena performance improvements. Earnings calls or investor presentations where companies discuss AI progress can shift trader sentiment. Academic papers or third-party evaluations comparing math reasoning capabilities may also trigger repricing. Regulatory announcements affecting AI development, partnership news, or talent acquisitions at competing firms could influence expectations. Real-time leaderboard updates on Text Arena itself will be the most direct price driver as resolution approaches.