There is no per-unit API price: price not verified.
#197 of 200 in Embeddings.
On FollowIR · Mean over task types · English, Sbert Large Nlu Ru scores 0.6 vs 0.6 — about the same.
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), Qwen 3 Embedding 4B (open weights).