LLM Validation: 0.04 per 1,000 Assessments
Using LLMs for targeted knowledge validation tasks (like ontology mapping assessment) costs approximately 0.04 per 1,000 requests.
Each validation query consumes 100-250 input tokens. At current API pricing (0.15 per million input tokens), the per-query cost is negligible.
For context: in the study’s largest task (SNOMED-NCI with ~2,500 uncertain mappings), the total LLM cost would be under $0.10, while achieving performance comparable to a human domain expert with 20% error rate.
This cost structure makes LLM oracles viable for knowledge engineering tasks where human expert time is the bottleneck, not compute cost.
Related: 05-atom—llm-oracle-20-percent-error-rate, 05-molecule—targeted-llm-intervention-pattern