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.
#84 of 89 in Multimodal.
On MIEB lite · Vision Centric QA · English, Blip2 Opt 2.7B scores 55.4 vs 55.4 — about the same.
Released 2024-03-22. 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.
Blip2 Opt 2.7B is an open-weights embeddings & retrieval model from Salesforce, released Mar 2024.
DNA VL STEER 2B (better).