If you're looking for a full-featured AI image creation and editing system, getimg.ai is a top contender. It includes tools for generating new imagery, editing existing imagery and training your own AI models. Among its tools are AI Canvas for image expansion, Image Editor for fine tuning, and DreamBooth for training your own AI models. It also offers API integration and access to 80+ community-trained AI models.
Another option is ExtendImageAI, which focuses on expanding and amplifying images. It includes tools like Magic Expand, an easy-to-use image expander that preserves color and style, and freeform selection for more precise expansion. The tool is geared for pros who need to create large images for things like ads, posters and social media graphics.