Ask HN: Selfhosted ChatGPT and Stable-diffusion like alternatives?

I know this has been asked before, but things are moving so quickly in this realm and people here seem to have a good insight, so I am asking again.

The speed of answers and computation is not really an issue, and I know that most selfhosted solutions obviously is in no way fully on-par with services like Chatgpt or Stable-diffusion.

I do have somewhat modest resources.

16 GB RAM NVIDIA GPU with 4 GB vRAM.

Is there any options that means I can run it selfhosted?