Contextual Embeddings That Retrieve the Evidence, Not Just the Answer: Perplexity's Late-Chunking Architecture, pplx-embed-v2-context-9b-preview, and Multi-Evidence Synthesis
1. The Fatal Flaw of Naive RAG: The Isolated "Gold Chunk" Fallacy Enterprise engineering teams across the globe have spent the…
25 min · Sep 30, 2026 Read this piece →