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.
#3 of 205 in Embeddings.
On FollowIR · Instruction Reranking · English, Harrier OSS v1 27B scores 5.4 vs 5.5 — about the same.
Released 2026-03-27. 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.
Harrier OSS v1 27B is an open-weights embeddings & retrieval model from Microsoft, released Mar 2026.
Qwen 3 Embedding 8B (better), Qwen 3 Embedding 4B (open weights).