# My lab found a way to migrate between embedding models with zero downtime. [R] > Source: > Published: 2026-09-08 05:00:04+00:00 So I've been messinga round with embedding models for a bit, and I think they are interesting enough to experiment with. They are useful for rag, especially in a localllm sense because you can ground your answers in truth. But what happens if you have a billion documents, and you decide to upgrade y