This site lets you use GPT Image 2.5 to generate a new picture from a description or change an existing photo. You can swap backgrounds, replace objects, adjust lighting or restyle the whole image.
It accepts JPEG, PNG and WEBP uploads up to 24MB, offers 1K to 4K quality and several aspect ratios, and can produce up to four outputs at once. Generation is credit-based, with a free option to try.