If you're looking for a Nero AI alternative, AVCLabs is another option worth considering. The tool includes a variety of AI-based tools to improve video and photo quality, including Video Enhancer AI for upsizing to HD, 4K or 8K resolution and Photo Editor with options to improve photo quality, increase resolution and remove parts of the scene you don't want. It's geared for both beginners and pros, and works in the browser or as a Windows and macOS download.
Another good option is Let's Enhance, which focuses on upscaling and otherwise improving blurry or low-resolution imagery to high resolution. It can handle batch jobs, HDR color grading, background removal and other tasks. It's geared for creative pros, e-commerce customers and real estate clients who need to rapidly resize and improve imagery for print-quality photos.
VideoProc is another tool worth considering, especially if you need a general-purpose video processing tool. It can enhance, convert, compress and edit video, and it can use GPU acceleration for fast 4K and 8K processing. With tools like AI video enhancement, video stabilization and frame interpolation, it's a good all-purpose tool for improving video quality.
For those who prefer an open-source option, DeepMake is an AI-based content creation system that runs on users' own PCs. It can upscale images and video, mask faces and objects, and integrate with Adobe After Effects. It's geared for creative pros who want to have full control over their projects without relying on cloud services or paying for usage.