Definition

What is chargeback vs showback?

Chargeback bills each team's AI spend back to its own budget; showback reports the same per-team cost without moving money. Chargeback drives accountability but adds friction; showback informs without enforcing. Most teams start with showback. Spendassay produces the team-level cost breakdown either model needs, with the proof level behind every number.

Every figure Spendassay publishes about chargeback vs showback carries a proof level saying how much guessing sits behind it, and opens to show the rows it was computed from. The full method is on the methodology page.