Yes, Vespa.ai can index billion scale vector datasets https://blog.vespa.ai/billion-scale-knn/ https://blog.vespa.ai/billion-scale-knn/ Vespa also allows expre

Yes, Vespa.ai can index billion scale vector datasets https://blog.vespa.ai/billion-scale-knn/ https://blog.vespa.ai/billion-scale-knn/ Vespa also allows expressing hybrid sparse and dense retrieval (WAND for sparse, ANN via HNSW for dense). It's also easy to express multi stage retrieval ranking phases, as vector search alone is not achieving state-of-the-art ranking results, see https://blog.vespa.ai/pretrained-transformer-language-models-for-search-part-4/ https://blog.vespa.ai/pretrained-transformer-language-models...