The best AI tool for finding high-resolution free images is DreamStudio by Stability AI. It is the best AI image generator for customization, allowing users to create stunning visuals with ease. Another great option is Visme's text-to-image generation tool, which is free, easy to use, and powerful, generating visuals out of plain text input. Microsoft Designer's free AI image generator is also noteworthy, as it allows users to create vivid, high-resolution images with stunning detail by simply writing a description of the image they want. Other notable AI image generators include DALL-E 3, Midjourney, and Canva Magic Media's AI image generator powered by Stable Diffusion.