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Skills2026-07-08 · source-backed
2026 analysis attributes 73% of RAG failures to retrieval, not the LLM, so prompt tweaks are wasted when the wrong chunks arrive. Replace fixed-size splitting with semantic chunking, and add hybrid dense-plus-BM25 retrieval merged by Reciprocal Rank Fusion so exact identifiers and rare names don't vanish into vector space. (Atlan)
Each link below shares sources, entities, or timing with this story.
Shared entities / Earlier coverage / Tension
Both cover BM25, LLM, RAG, Replace; earlier BM25 coverage from 2026-03-22; pushes against this story (vs).
Shared entities / Shared topic / Earlier coverage
Both cover BM25, LLM, RAG; overlapping topics (chunk, retrieval); earlier BM25 coverage from 2026-06-27.
Both cover LLM, RAG; overlapping topics (chunk, chunking, retrieval); earlier LLM coverage from 2026-05-08.
Both cover BM25, LLM; overlapping topics (chunk, failur, retrieval); earlier BM25 coverage from 2026-03-18.