Status: IN
EEM construction cost measured for enterprise scale (6 departments, 5,366 sources, 13,511 beliefs): ~$300 at Sonnet pricing, ~$1,500 at Opus pricing. Dominant cost is the summarize step (~98M tokens). Per-query breakeven at 100-250 queries — after that, every query is cheaper than re-reading source documents.
Source: repo:beliefs-pi/entries/2026/05/27/eem-construction-cost-estimate-enterprise-scale.md