Jot is an AI-powered tool that generates infinite variations of ad copy using OpenAI's GPT-3 language model. It helps streamline the copywriting process by providing human-like ad copy based on a single product description. Jot is user-friendly and can be used on any platform, saving time and money on marketing efforts. It offers features like brand management, bookmarking, copy editing, and filtering. Jot comes in two pricing plans, Basic and Pro, with different features and benefits. It also offers a 7-day free trial for users to try out its capabilities.