Here's a very recent article from Googe Brain that uses diffus | Gradient Dude

Here's a very recent article from Googe Brain that uses diffusion models for super-resolution.

The results are shocking! Their model beats the GAN-based SOTA method. The video shows an example of how a 64x64 picture is upscaled to 1024x1024. But no source code yet.

Project page
Paper

I also wrote about OpneAI paper on diffusion models earlier.