> ## 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.

# BatchListItemUsage

## Example Usage

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

let value: BatchListItemUsage = {
  completionTokens: 818865,
  promptTokens: 213947,
  totalTokens: 199138,
};
```

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `cacheCreation` | [models.AnthropicCacheCreation](../models/anthropiccachecreation.mdx) | ➖ | N/A | \{ "ephemeral\_1h\_input\_tokens": 0, "ephemeral\_5m\_input\_tokens": 100 } |
| `completionTokens` | *number* | ✔️ | The tokens generated | |
| `completionTokensDetails` | [models.BatchListItemCompletionTokensDetails](../models/batchlistitemcompletiontokensdetails.mdx) | ➖ | N/A | |
| `cost` | *number* | ➖ | Cost of the completion | |
| `costDetails` | [models.CostDetails](../models/costdetails.mdx) | ➖ | Breakdown of upstream inference costs | \{ "upstream\_inference\_completions\_cost": 0.0004, "upstream\_inference\_cost": null, "upstream\_inference\_prompt\_cost": 0.0008 } |
| `isByok` | *boolean* | ➖ | Whether a request was made using a Bring Your Own Key configuration | |
| `iterations` | *models.AnthropicUsageIteration*\[] | ➖ | N/A | |
| `promptTokens` | *number* | ✔️ | Including images, input audio, and tools if any | |
| `promptTokensDetails` | [models.BatchListItemPromptTokensDetails](../models/batchlistitemprompttokensdetails.mdx) | ➖ | Breakdown of tokens used in the prompt. | |
| `serverToolUse` | [models.BatchListItemServerToolUse](../models/batchlistitemservertooluse.mdx) | ➖ | Usage for server-side tool execution (e.g., web search) | |
| `serviceTier` | *string* | ➖ | The service tier used by the upstream provider for this request | |
| `speed` | [models.AnthropicSpeed](../models/anthropicspeed.mdx) | ➖ | N/A | standard |
| `totalTokens` | *number* | ✔️ | Sum of the above two fields | |