Where it shows up
- Claude Sonnet, nightly-reports workspace: up to $6,015 a month
What to do
Run jobs that don't need an instant answer (nightly summaries, reports, evals, bulk tagging) through the Message Batches API.
Why we are confident
- You told us which workloads run in the background, and their spend is exact.
Method and assumptions
75% to 100% of the background work you named can move, at 50% less per token.