> ## 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.

# DecisionsUsageInputTokensDetails

Of `input_tokens`, those the provider served from its prompt cache.

## Example Usage

```typescript theme={null}
import { DecisionsUsageInputTokensDetails } from "@openrouter/sdk/models";

let value: DecisionsUsageInputTokensDetails = {
  cachedTokens: 564876,
};
```

## Fields

| Field | Type | Required | Description |
| - | - | - | - |
| `cachedTokens` | *number* | ✔️ | N/A |