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.
#89 of 89 in Multimodal.
On MIEB lite · Compositionality · English, Blip Image Captioning Base scores 23.7 vs 24 — about the same.
Released 2023-08-01. It is the current version in its line.
Yes, the weights are open (bsd-3-clause licence).
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Blip Image Captioning Base is an open-weights embeddings & retrieval model from Salesforce, released Aug 2023.
EmbeddingGemma 2 (better), LCO Embedding Omni 7B (open weights).