Phase.art

Phase.art is a browser-based image generator that runs Flux Dev and Flux Schnell, returning pictures in about four seconds. It also offers Flux Fill for painting over parts of an image and Flux Redux for variations, and new users get 400 free credits.

You type a prompt, pick an aspect ratio such as 9:16 portrait, and generate. Advanced settings expose the seed, guidance scale and number of inference steps, which helps when you want to reproduce or fine-tune a result rather than roll the dice each time.

Fill lets you select an area and regenerate only that region, while Redux creates variations from an existing image. Sign-in is through a Google account. The site is small and focused, without a gallery of community models or extra editing tools.