DVMs are essentially (micro) services running on Nostr. There are a few LLMs running behind DVMs as well as some image generation models. If you want to run one, check out the nostrdvm library Don't ₿elieve the Hype 🦊 (npub1nxa…a6q8)
You can browse some of them here: https://noogle.lol/nip89
https://github.com/believethehype/nostrdvm