Blog/#evals
#evals
RAG chunking, measured: heading-aware chunks doubled hit@1 on the FastAPI docs
I tested 5 chunking strategies on 151 real docs and 773 queries. Fixed-size chunks crossed section boundaries 59% of the time. Heading-aware chunks never did.
The RAG production checklist: 25 checks before real users see it
25 checks across ingestion, retrieval, generation, evaluation and operations that catch the RAG failures demos hide. Free printable PDF included.