Pixai is an AI art generator tool that can generate anime-style or realistic-style art for various use cases. It offers a character engine for generating original characters, and users can also generate chat bots for Discord or visual chat applications. The tool includes various ranking models to help users discover trending and popular artwork, with daily updates for the latest creations. Pixai supports NSFW features and allows users to create artwork related to popular anime and games such as Fate, Genshin Impact, and Konosuba. The tool offers a beta generation feature for testing and provides guides for creating characters related to furry, hololive, and other content.