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Which Company Will Have the Best AI Model by the End of May 2026?

Boosted +500 pClashShield in 294h5K vol. pClash•05/29/2026 4:59 AM UTC•Loading...

This market resolves to the company that owns the AI model with the highest Arena Score on the Chatbot Arena LLM Leaderboard at the official check time at the end of May 2026. “Best AI model” is defined strictly by the Arena Score on Chatbot Arena - no subjective judgment, media opinions, or company claims. Resolution Criteria: This market will resolve according to the company that owns the model with the highest Arena Score on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/ ) when the leaderboard is checked on: at the end of May 31 2026 CST. The following rules apply: - Results from the “Arena Score” section on the Leaderboard tab of https://lmarena.ai/leaderboard/text with style control turned off will be used for resolution. - The market resolves to the company that owns the top-scoring model at the check time. - If the top-scoring model is owned by a company not listed as a selection in this market, the market resolves to “Other.” - If two or more models are tied for the highest Arena Score, the market resolves to the company whose name comes first alphabetically, based on the company names listed in this market. - If the leaderboard is unavailable at the check time, the market will remain open and resolve based on the first moment the leaderboard becomes available again. - If the leaderboard becomes permanently unavailable, the market will resolve using an alternative widely accepted AI leaderboard or benchmark chosen by the platform. Tie-Breaker Rule: - If two or more models are tied for the highest Arena Score at the check time: - The market resolves to the company whose name comes first alphabetically, based on the company names listed in this market. Example: If Google and xAI are tied, Google resolves as the winner.