CanceledGPT is a tool for searching Twitter users' cancelled tweets. It helps users identify if there are any tweets that could potentially lead to their cancellation. The tool can search for tweets from specific Twitter users and display whether there are any cancelled tweets. It also offers trending searches, allowing users to see the most recent popular searches. Users can choose a date range to search for tweets within a specific timeframe. The tool also includes a congratulatory feature for users and encourages them to search for their friends' Twitter accounts to celebrate them not having any cancelled tweets. Users also stand a chance to win a $1,000 prize.