What belongs inside the cost?
Agree whether the question is direct AI spend or a broader operating cost. Licences, usage, infrastructure and review effort should not drift in and out of the calculation between months.
Bring contracts, usage bills, and model charges together, then compare the cost of the work they support.
AI costs can sit in a seat contract, a provider invoice.
$9,100 of the month is shared or unowned, twelve percent of the total, and no record supports assigning it to a team. Marketing has no agreed completed unit, so its month stops at the team total.
Shared credentials, missing ownership and unfinished work can each prevent a supported allocation.
Cost per assigned seat helps with a renewal.
Agree whether the question is direct AI spend or a broader operating cost. Licences, usage, infrastructure and review effort should not drift in and out of the calculation between months.
Cost per seat helps a renewal, cost per team sets a budget line, and cost per completed unit compares the work. None of the three is a substitute for the others.
Show it. Agree an allocation rule where the evidence supports one, and keep the unsupported remainder separate rather than spreading it across teams to make a neat total.