There is no per-unit API price: API price not public.
There is no free API. The weights are open, so you can run it yourself.
#51 of 200 in Embeddings.
On MTEB English v2 · Pair Classification · English, UAE Large v1 scores 87.2 vs 87.3 — about the same.
Released 2023-12-04. It is the current version in its line.
Yes, the weights are open (MIT licence).
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
UAE Large v1 is an open-weights embeddings & retrieval model from WhereIsAI, released Dec 2023.
Voyage Large 2 Instruct (better), QZhou Embedding (open weights).