> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # ImagePricingEntry One billable pricing line for an image provider. ## Fields | Field | Type | Required | Description | | ---------- | ----------------------------------------------------------- | -------------------- | ----------- | | `Billable` | [components.Billable](../../models/components/billable.mdx) | :heavy\_check\_mark: | N/A | | `CostUsd` | `float64` | :heavy\_check\_mark: | N/A | | `Unit` | [components.Unit](../../models/components/unit.mdx) | :heavy\_check\_mark: | N/A | | `Variant` | `*string` | :heavy\_minus\_sign: | N/A |