We have a cloud offering at https://trypromptly.com. We do offer enterprises the ability to host their own vector database to maintain control of their data. We also support interacting with open source LLMs from the platform. Enterprises can bring up https://github.com/go-skynet/LocalAI, run Llama or others and connect to them from their Promptly LLM apps.
We also provide support and some premium processors for enterprise on-prem deployments.