Vector index cost calculator
What a vector index actually costs, month 1 to month 36 — starting from how much data you have, not how many vectors you think you'll store.
Vendor calculators quote a month you will never have: they ask for a vector count nobody knows and price the steady state. The bill that surprises people is writes — how much data your index actually creates, once, and then keeps forever, times every re-index. Five inputs, 36 months, list prices, every constant shown. Queries are deliberately not modelled: they scale with traffic rather than corpus size, and they are not what surprises anyone on the invoice.
Built for a Maven Lightning Lesson with Doug Turnbull, August 2026.