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.
#184 of 200 in Embeddings.
On MTEB Europe v1 · Mean over tasks · multilingual (29 languages), German Semantic STS v2 scores 41.2 vs 42 — about the same.
Released 2022-11-17. It is the current version in its line.
Yes, the weights are open.
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
German Semantic STS v2 is an open-weights embeddings & retrieval model from aari1995, released Nov 2022.
E5 Base v2 (better), Qwen 3 Embedding 8B (open weights).