This market will resolve to "Yes" if any model on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) reaches an Arena Score of 1500+ by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". Results from the “Arena Score” section on the Leaderboard tab of https://lmarena.ai/ with the style control unchecked will be used to resolve this market. The resolution source is the Chatbot Arena LLM Leaderboard at https://lmarena.ai/. If this source is temporarily unavailable, the market remains open until it is accessible again; if permanently unavailable, resolution will be based on another credible source.