Which company has the #1 AI model end of May? (Style Control On)

Which company has the #1 AI model end of May? (Style Control On) is a technology prediction market tracking which AI company will hold the top spot on the Chatbot Arena LLM Leaderboard. The forecast resolves to the company whose model ranks first on the "Text Arena | Overall" leaderboard with style control on, based on the rank column checked on May 31, 2026 at 12:00 PM ET. If models are tied, the market uses Arena score and then company name as tiebreakers.

This event matters because the Chatbot Arena leaderboard is a widely watched benchmark for comparing large language models from major AI and Big Tech companies. Traders are effectively pricing the expected outcome for who will lead the leaderboard at the check time, making this an AI-focused event prediction with clear timing and a defined resolution source.

The current market probability for the leading outcome is about 25%, suggesting traders see the result as competitive rather than settled. The market is active in the TECH / AI category and reflects broader sentiment around which company currently has the strongest model performance at the end of May.