How to build an AI spend ledger
A company AI spend ledger should reconcile provider bills, expense evidence, directory context, and usage telemetry without hiding how complete each signal is.
- Start with ChatGPT, Claude, Gemini, Copilot, and paid AI vendors found in expenses.
- Separate observed, inferred, enforced, and not covered spend.
- Attach owner, department, vendor, date, amount, confidence, and evidence source to every row.
- Never treat missing signals as zero spend.