Will Anthropic have the top AI model at the end of June 2026?

The market has rallied 13 cents over seven days to 60¢, reflecting growing confidence in Anthropic's competitive position, though the extreme realized volatility of 465% and vol ratio of 2.55 suggest significant uncertainty remains. The No side offers a striking 740% annualized yield versus 329% for Yes, indicating the market prices in substantial tail risk despite the 60% baseline probability—likely reflecting the rapid pace of AI model releases (3.1 info arrivals per hour) and the binary nature of "top model" determination. With only $479.87 in 24-hour volume against $14.5M open interest and 74 days to resolution, liquidity is thin relative to the stakes, creating potential for sharp repricing if major model releases occur.

Resolution rules

This market will resolve according to the company that owns the model with the highest arena score based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on June 30, 2026, 12:00 PM ET. Results from the "Arena Score" section on the Leaderboard tab of https://lmarena.ai/leaderboard/text set to default (style control on) will be used to resolve this market. If two models are tied for the best arena score at this market's check time, resolution will be based on whichever company's name, as it is described in this market group, comes first in alphabetical order (e.g., if both were tied, "Google" would resolve to "Yes", and "xAI" would resolve to "No") 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 resolves based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.

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