> ## 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.

# PublicServiceTier

The service tier this endpoint sells, or null for a standard endpoint. The same value whether the provider selects the tier with a request parameter or with a dedicated model id. Always the canonical tier: priority covers the fast request alias and the turbo, highspeed, and prime provider model-id spellings, none of which this field reports.

## Example Usage

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

value := components.PublicServiceTierFlex

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

## Values

| Name | Value |
| - | - |
| `PublicServiceTierFlex` | flex |
| `PublicServiceTierPriority` | priority |
| `PublicServiceTierUltrafast` | ultrafast |