There is no per-unit API price: self-host only.
There is no free API. The weights are open, so you can run it yourself.
#135 of 200 in Embeddings.
On MTEB Spanish v1 · STS · multilingual (2 languages), Sentence Croissant Alpha v0.4 scores 71.8 vs 71.8 — about the same.
Released 2024-04-27. 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.
Sentence Croissant Alpha v0.4 is an open-weights embeddings & retrieval model from manu, released Apr 2024.
Multilingual E5 Large Instruct (better), Jina Embeddings v5 Text Small (open weights).