One engine that does retrieval, ranking and inference in the same place.
One engine that does retrieval, ranking and inference in the same place. Most stacks bolt a vector database to a search index to a model server and pay for the hops; Vespa keeps the vectors, the text index, the structured fields and the ranking models — including ONNX models evaluated per document — inside the same nodes, so a query can score millions of candidates with a real model rather than re-ranking a shortlist. It is the engine spun out of Yahoo in 2023, where it had been running web-scale serving for years, and it is what Perplexity moved its search onto.
| Industry | AI & Machine Learning |
| Funding | |
| Stage | Series A |
| Website | Visit Vespa.ai |
Where Vespa.ai sits against the other names we cover on this beat. Each line is that company’s verdict, not a summary of it.
The 2026-07-30 print settled four of the five questions the prior dossier said it could
Cash $78.2B