---
title: "Cost"
description: "a cost by kind"
section: concepts
address: /concepts/cost
contract: 0476e35e6e275db5
---

# Cost

a cost by kind

[figure: Cost is a value at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | value |
| scope | none |
| key | none |
| store | none |
| family | kernel |



## Fields


| field | type | required | note |
|---|---|---|---|
| `money_outside` | `money` | no |  |
| `model_calls` | `count` | no |  |
| `model_tokens` | `count` | no |  |
| `machine_time` | `duration` | no |  |
| `people_hours` | `duration` | no |  |



## Routes that use it
No route takes or returns Cost directly. The record holds it, and the objects that point at it reach it.