MidJourney is a high-quality AI image generator that is not generally available, and to use it, you need to apply to the official waiting list of the tool. The generator uses a beta version that is hosted on a Discord server, and you can generate images by joining one of the rooms that begin with "newbies" and sending a message that starts with /imagine followed by your input. MidJourney is known for generating high-resolution and photorealistic images that are impossible to distinguish from those of real artists. The tool gives a limited trial, and you can find more information about pricing by being accepted as a demo user.