Check your AI spend assumptions
Calculations stay in this tab. Inputs are not sent to Token Observe or saved in browser storage. Export creates a CSV only when you choose it. Use labels rather than confidential account details.
What evidence do you have?
Choose one month and add each distinct source once. Provider reports and invoices can describe the same usage. Their subtotals remain separate, as do gateway estimates. Rates are your assumptions per million tokens, not a live price feed. Include cache, reasoning, tool or other charges in your source records; the simple input/output estimate does not model them.
Read each subtotal on its own
Subtotals include entered values only. Unknown amounts stay unknown. A reviewed checklist is a record of your checks, not a measured percentage of the AI estate.
- USD · Provider-reported cost
- Unknown
- 0 entered rows · 1 unknown rows
Review the evidence coverage
0/5 checks reviewed
Check one difference
For the same account, currency and completed UTC period, enter the first and second source totals. The result is second minus first. It explains no cause by itself. Compare gateway to provider, then provider to invoice as two separate checks.
Difference (second minus first): Unknown
Record the difference and its explanation in the reconciliation worksheet.
Keep working with the evidence
Connect one source and inspect its evidence.
Create a cloud account and workspace. No card or server installation. Model calls and Google BigQuery scans can incur separate provider charges.