I tried some free AI Image Denoising tools on a noisy, low-light photo. I had big hopes for a very sweet picture that’s just too noisy to put in a frame. Unfortunately, free tools didn’t get me anywhere.

ImgLarger
http://imglarger.com
Result: I can’t tell the difference between the original and the supposedly “denoised” image. 0/10 might as well not have bothered.

DeepAI Super Resolution model
https://deepai.org/machine-learning-model/torch-srgan
using Super Resolution torch-srgan
Result: The image was noticeably denoised, but the result wasn’t very impressive.
Following enhance, the quality was still poor.

BigJPG
https://bigjpg.com
The free denoising is limited to 3000×3000 px, so I had to crop the picture.
Result: Another poor quality, unimpressive result.

https://deepai.org/machine-learning-model/image-editor
After a series of unsatisfying results, I told it “do nothing”. and it closed the eyes and added some wrinkles. ooookay.
The prompt “watercolour painting, pastel colours, photorealistic, detailed image” was better but still mangled the face a bit horribly, and this algorithm seems really determined to make smiling faces squint.