But of course, it entirely depends on the data. No solution is absolute.
This is why it is so important to be able to compare AI models before deploying a vector search.
Vertex Matching Engine (ANN similarity search) was also considered, but the lack of aggregations (faceting) was a no go, unfortunately. I hope it will be added in the future.
(Facets are the #1 feature on e-Commerce search)
WPSOLR & Cohere: https://wpsolr.com