The top free websites for generating AI art are Nightcafe, Artguru, Craiyon, Vance AI Art Generator, and AI Art Generator by NightCafe Creator. Nightcafe is a text-to-image AI art generator that can turn simple English sentences into jaw-dropping paintings. Artguru offers a free AI art generator that can create stunning and unique art from text or photos. Craiyon is another free AI image generator tool that allows you to create AI art in various styles, such as landscape, line illustration, and more. Vance AI Art Generator offers a text-to-image art generator, although it is relatively limited compared to other options. Finally, AI Art Generator by NightCafe Creator is an AI art generator app that uses neural style transfer and text-to-image AI methods to create artwork from photos or words on a page. These websites provide a range of options for generating AI art for free.