Steve.ai is an AI-powered video creation tool that allows users to quickly create videos by inputting text scripts. The tool offers various use cases, including video maker for corporate, product, promotions, and social media, and includes features such as text-to-video conversion, audio file conversion, access to a library of assets, and AI assistance for selecting relevant media assets. The tool is beginner-friendly with an intuitive and easy-to-use interface, and it offers a free option with no credit card required.