The best AI tool for generating images is OpenAI's DALLE 2. It is superior to other options due to its ability to generate a diverse range of images, including anthropomorphized versions of animals and objects, combining unrelated concepts in a plausible way, and rendering text. It has a 12-billion-parameter version of GPT3 trained to generate images from text descriptions using a dataset of text-image pairs. It is known for producing the best results and being one of the easiest systems to use. It has a diverse set of capabilities, making it a great tool for creatives in various industries. It can be used for a variety of purposes, including creating inspiration for creative projects, generating images for social media, and creating visual aids for presentations.