Let's Enhance is an AI image enhancement and generation tool that can upscale to 4K and beyond, remove backgrounds and offer a host of other options geared for creative pros and businesses. It can handle batch jobs, HDR filters and integration with APIs for print-on-demand and other uses, so it's a good choice for power and flexibility.
Another good option is VanceAI, which offers a collection of tools for upscaling, sharpening, denoising and removing backgrounds. It also offers an AI Background Generator for creating new backgrounds and supports batch jobs, so it's good for high-volume image processing. VanceAI is geared for pros and businesspeople who need to streamline photo editing and retouching.
Clipdrop offers a variety of features including background removal, image upscaling and text-to-image generation. It's got an interface that's easy to use for pros and amateurs alike and offers tools for generative fill, universal resizing and sketch-to-image transformation. Clipdrop is good for marketing, content creation, art and branding, and offers a free version and a Pro version.