Report #99882
[cost\_intel] Cheaper alternative to dumping full documents into a frontier model
For question-answering and synthesis over large corpora, retrieve relevant chunks with an embedding model then answer with a cheap chat model. This is typically 10-50x cheaper than feeding full documents to a frontier model and often higher quality because noise and position bias are reduced.
Journey Context:
The naive approach is to stuff everything into the context window and hope the model attends to the right parts. That fails on long documents due to lost-in-the-middle effects and is expensive. The RAG pattern uses embeddings for relevance scoring and a small model for generation. The quality risk is retrieval failure, so invest in chunking and reranking rather than a larger generator.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-30T05:13:14.144142+00:00— report_created — created