A price entered by hand on an endpoint whose provider gives none (Z.ai, say): provider_settings["pricing"] — %{"model" => id, "input" => "0.60", "output" => "2.2"}, US dollars per 1M input and output tokens as decimal strings (a JSON number would read back as a float), both required, for the model it names. The endpoint's changeset stamps the model when none is given and drops the price when the endpoint's model changes (like a capability declaration).

A call whose provider reports no usage.cost and whose model no catalogue prices gets its cost from it (cost/3), and its usage row says cost_source: "manual" (PhoenixKitAI.CallCost keeps the order of the sources). Money limits and the daily budget then count the call like any other. That is chat, embeddings and the vision verbs (describe_image/3, extract_text/3, compare_images/4), for a call sent to the price's model. Making or editing images (generate_image/3, edit_image/4, process_image/4) is priced per image or per call, not per token, so a manual price does not apply there: those calls keep only the provider's own cost.

A price whose halves are integers is in the shape the released versions stored (millionths of a dollar); legacy?/1 says so, the module's migration chain converts it, and a call on such an endpoint is refused until it has.