Author here. I deliberately didn't include one because I'm waiting for the dust to settle a bit.
There is a lot of activity in the space, from things like TurboPuffer (proprietary), Postgres extensions like VectorChord and pgvector, to established players like Elastic getting in on the action. Not to mention things like Pinecone.
There is a lot of activity in the space, from things like TurboPuffer (proprietary), Postgres extensions like VectorChord and pgvector, to established players like Elastic getting in on the action. Not to mention things like Pinecone.