A new account on the prediction market Polymarket has invested $50,000, betting that AI apps such as ChatGPT, Claude, Grok, or Google Gemini will drop from the top position on the US App Store's free chart by March 8. The investment was made at an average entry price of 50¢, reflecting a 45% probability of this outcome. According to the market's settlement rules, if any of these apps falls from the #1 spot by 11:59 PM Eastern Time on March 8, the market will settle as "Yes." Otherwise, it will settle as "No." Recently, these AI apps have dominated the top position on the US App Store free chart, with Claude overtaking ChatGPT following a controversy involving OpenAI. The top spot has been alternating among these leading AI applications, making the prediction market's outcome uncertain.