Costs
Users open the arrow for a user's whole history, item by item · projections and margins are on Margins
By step and model last 30 days
By conversion type last 30 days
Running charges cost of goods sold: providers, hosting and payment fees, outside the per-call log above
Provider bills against the cost log this month
What Anthropic and OpenAI say they've billed, next to what our cost log recorded. A gap over 5% means a call isn't logged or a price in the price list is wrong (spec section 11).
Add a running charge
Recent changes
Running charges are what it costs to deliver Earmark: AI providers, hosting, and the fees taken from each payment. They grow with use and sales. VAT is listed here too because it comes off every payment, but it is collected for HMRC, not a cost of ours. Live rows are read from the provider every day and whenever this page opens; the rest you confirm by hand, and each turns amber when it is due a check. Margins uses these numbers. Prices marked "public price list" were checked on the providers' websites on 1 Nov 2026.
Conversions
Add an overhead
Recent changes
Overheads are what running the business costs whatever we sell: accounts, the domain, legal and tools. Live rows are read from the provider every day and whenever this page opens; the rest you confirm by hand, and each turns amber when it is due a check. Margins uses these numbers. Prices marked "public price list" were checked on the providers' websites on 1 Nov 2026.