7 articles tagged
Sentence Transformers 6.0 published 18 August 2026 adds ColBERT-style late interaction. The gain is about one NDCG point on NanoBEIR. The cost is 311.5 MB where a dense index used 7.5 MB.
AWS said no VPC changes were required. The OpenSearch guide says every semantic enrichment index call on a VPC domain returns AccessDeniedException until you run AuthorizeVpcEndpointAccess first.
Vector search in DynamoDB went generally available on 5 August 2026. Three billing meters, a 1 KB minimum, on-demand only, and a zero idle floor that reframes the pgvector and OpenSearch comparison.
Four Postgres-native vector search options, one decision: compare pgvector, pgvectorscale, ParadeDB and Lantern on recall, latency, hybrid search and cost, plus the scale ceiling where a dedicated engine wins.
A senior-engineer comparison of RAG embedding models in 2026: NVIDIA Nemotron 3 Embed, OpenAI text-embedding-3, Cohere Embed v4 and open-weight Qwen3, with RTEB benchmarks, pricing and self-host break-even math.
Stanford found RAG-backed legal tools still hallucinate 17-34% of the time. Here is what an enterprise RAG knowledge assistant costs in 2026, which retrieval setup actually works, and how eCorpIT builds one.
Most pgvector-versus-vector-database comparisons quote one vendor benchmark from April 2025 that ran no filtered queries and tested an extension most teams do not install. Here is what the primary sources actually
