There is no per-unit API price: price not verified.
#4 of 13 in Audio.
On MAEB v1 · Audio Clustering · multilingual (6 languages), Yamnet scores 1.6 vs 1.7 — about the same.
Released 2020-10-06. It is the current version in its line.
Yes, the weights are open (Apache-2.0 licence).
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Yamnet is an open-weights embeddings & retrieval model from Google, released Oct 2020.
Vggish (better).