There is no per-unit API price: price not verified.
#197 of 200 in Embeddings.
On MTEB Russian v1.1 · Mean over task types · Russian, Sbert Large Nlu Ru scores 41.5 vs 45.8 — lower.
Released 2020-11-20. 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.
Sbert Large Nlu Ru is an open-weights embeddings & retrieval model from ai-forever, released Nov 2020.
EmbeddingGemma 300M (better), Giga Embeddings Instruct (open weights).