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LlamaIndex LLM Cost Tracking
8 min readUpdated June 2026
Separate Retrieval and Generation Costs
RAG systems mix embeddings, retrieval, reranking, and generation. Each step needs metadata so the final cost picture is useful.
Capture Workflow Context
Attach index, collection, customer, workspace, route, session, and run metadata to understand which knowledge workflows drive spend.
Govern Model Choices
Use Cloptima to control expensive models and context-heavy requests while still allowing teams to iterate on retrieval quality.
Review Unit Economics
Measure cost per answer, document, workspace, or customer segment to keep AI features aligned with margin.