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.
#151 of 200 in Embeddings.
On MTEB English v2 · Reranking · English, Speed Embedding 7B Instruct scores 50.3 vs 50.3 — about the same.
Released 2024-10-31. 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.
Speed Embedding 7B Instruct is an open-weights embeddings & retrieval model from Haon-Chen, released Oct 2024.
Yuan Embedding 2.0 En (better).