As an Yahoo internal project, Vespa actually started out very similar to Elastic in that it was meant for fast text search. The team then added ANN search capab

As an Yahoo internal project, Vespa actually started out very similar to Elastic in that it was meant for fast text search. The team then added ANN search capabilities later on. Vector search infrastructure is overall still fairly new (https://milvus.io/docs/text_search_engine.md https://milvus.io/docs/text_search_engine.md), but up and coming for sure. Disclaimer: I'm a part of the Milvus community.