> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-speakeasy-sdk-regen-1790369700.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Field

## Example Usage

```go theme={null}
import (
	"github.com/OpenRouterTeam/go-sdk/models/components"
)

value := components.FieldModel

// Open enum: custom values can be created with a direct type cast
custom := components.Field("custom_value")
```

## Values

| Name | Value |
| - | - |
| `FieldModel` | model |
| `FieldProvider` | provider |
| `FieldSessionID` | session\_id |
| `FieldUserID` | user\_id |
| `FieldAPIKeyName` | api\_key\_name |
| `FieldFinishReason` | finish\_reason |
| `FieldInput` | input |
| `FieldOutput` | output |
| `FieldTotalCost` | total\_cost |
| `FieldTotalTokens` | total\_tokens |
| `FieldPromptTokens` | prompt\_tokens |
| `FieldCompletionTokens` | completion\_tokens |