And then there are traditional databases and search products that are integrating vector search capabilities as well: Postgres, Elasticsearch, Opensearch, Solr.
They each have their limitations of course but the 28M round suggests a moat that I'm not seeing that clearly in terms of tech. What's so special about qdrant relative to their competition?
At least they are Apache licensed for now. So, that's nice. But that also means e.g. Apache Lucene could borrow some code from them to beef up their vector search capabilities. Which would benefit Elasticsearch, Opensearch, and Solr which all depend on Lucene.
Which raises the question what the point is of QDrant long term and why investors are betting on this as opposed to other things.
It seems to me that the main challenge with vector search is inference cost (at index and query time), not storing the vectors. A secondary concern is the vector comparisons at query time. A good way to cut down on that is to reduce the overall result set using traditional search or query mechanisms. In other words, you need