Question: I'm looking for a service that uses AI to improve the quality of blurry face photos.

Face Photo Restorer is a good place to start. The service uses heavy-duty AI technology to restore old, blurry face photos, producing results that are sharp and clear. It's easy to use, with no expertise required, so it's good for anyone. It's got a large user base, with more than 470,000 people using it, and it's free, with no premium features or subscription plans.

Remini is a more general-purpose tool that can convert low-resolution photos and videos into high-resolution images. It's got options for face enhancement, noise reduction and background detail, which can address common photo problems like blur and focus. Remini also offers an API for developers who want to build it into their own apps, and it's available on mobile devices, so it's good for a variety of situations.

Fix Blur is more specialized, focusing on just facial details in blurry photos. It can handle a variety of file formats and sizes, and offers a free image enhancement option. It's good for anyone who wants to improve memories without having to know much.

If you want more advanced options, Let's Enhance could be a better fit. The tool can upscale and enhance blurry images to high resolution and quality, and it's got some other tricks up its sleeve, like HDR filters, background removal and batch editing. It's geared for creative pros and businesses that need to deliver high-end image results.