TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 29, 10:00 AM EST
Kalshi
This market determines which specific AI language model ranks highest on the LMSYS Chatbot Arena leaderboard as of June 29, 2026 at 10:00 AM ET. The ranking reflects community-driven evaluations of model performance across diverse tasks.
Resolution is determined by identifying the top-ranked AI model on the LMSYS Chatbot Arena leaderboard on June 29, 2026 at 10:00 AM ET, with the 'Remove Style Control' toggle enabled. When checking the leaderboard, use the Rank (UB) metric as the primary ranking indicator. In the event of ties, apply a hierarchical tiebreaker sequence: first, the model with the highest Arena Score wins; second, if still tied, the model with the most votes wins; third, if still tied, the model that was released earlier wins. Each potential outcome corresponds to a specific model, and exactly one will resolve to Yes based on which model occupies the top position after applying these tiebreaker rules.
Prediction market odds often diverge from traditional analyst forecasts because they aggregate real-money bets from a diverse crowd rather than relying on a small group of expert opinions. Traders in this market incorporate breaking news, benchmark performance data, and community sentiment into their positions, sometimes moving odds faster than formal analyst reports are published. While analysts may issue quarterly or monthly assessments of AI model capabilities, this market updates continuously, reflecting the latest developments and trader conviction. Both sources offer value: markets excel at rapid repricing, while analysts provide detailed technical reasoning.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing each candidate model's likelihood of finishing as the top performer that week. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices range from near zero to near 100, with each point representing a one-percent implied probability. As new information surfaces—such as model benchmark releases or deployment announcements—traders adjust their positions, and the bid-ask spread tightens or widens based on conviction and liquidity. The market price at any moment reflects the collective assessment of all active traders.
This market resolves around Jun 29, 2026, at which point the outcome is confirmed once the event is verifiable from credible public reporting. The resolution hinges on identifying which AI model held the top position according to widely recognized benchmarks, adoption metrics, or industry consensus during the specified week. Traders should monitor official model releases, leaderboard updates, and reputable technology news sources in the days leading up to resolution to gauge how the outcome may be determined.
Major catalysts for this market include new model releases from leading AI labs, benchmark test results that rank model performance, significant deployment announcements by major tech companies, and viral breakthroughs in reasoning or multimodal capabilities. Academic papers demonstrating novel capabilities, regulatory approvals affecting model availability, and shifts in enterprise adoption can also shift trader sentiment rapidly. Additionally, comparative performance claims from industry leaders, unexpected model deprecations, or surprise open-source releases may reshape the competitive landscape and trigger sharp repricing as traders reassess which model will emerge as the week's leader.