Will OpenAI have the second best AI model at the end of April 2026?

This market is pricing in an extremely low 5% probability that OpenAI holds the second-best model by April 2026, despite the company's current dominance in LLM rankings—suggesting the market expects significant competitive consolidation or a major shift in the AI landscape over the next 14 months. The astronomical 50,572% implied yield on "Yes" reflects the severe mispricing or tail-risk premium typical of long-shot prediction market positions, though the modest $1,188 daily volume and $8.8M open interest indicate limited liquidity for such an extreme payout. With 14 days to resolution and a realized volatility of 1,587%, this market exhibits high uncertainty, but the recent price movement from 3¢ to 5¢ suggests marginal shifts in conviction rather than a fundamental reassessment of OpenAI's competitive position.

Resolution rules

This market will resolve according to the company that owns the model that has the second-highest arena score based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on April 30, 2026, 12:00 PM ET. Results from the "Score" column under the "Text Arena | Overall" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control off will be used to resolve this market. Models will be ranked primarily by their arena score at this market’s check time, with alphabetical order of company names as listed in this market group used as a tiebreaker (e.g., if the two models are tied by arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies second place under this ranking. 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 will resolve 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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