> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hostlinku.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Service Mode

> Dedicated, Performance, and Economy: API key selection, model catalog, pricing, and usage limits.

**Service Mode** determines the model catalog, service paths, and pricing for an API key. Select **Dedicated**, **Performance**, or **Economy** when creating a key in the [Console](https://console.hostlinku.com).

## Available modes

| Mode | The value of `service_mode` | Notes |
| - | - | - |
| **Dedicated** | `dedicated` | Mode options for Dedicated model sets. See the [Dedicated guide](https://docs.hostlinku.com/en/dedicated.md). |
| **Performance** | `performance` | Default options on the API key creation form. |
| **Economy** | `low_cost` (accepts `economy` input alias) | Mode options with their own model catalogs and pricing. |

A model may be available in more than one mode with different pricing. Compare models and prices in the [catalog](https://hostlinku.com/models).

## Selecting a mode for the API key

1. Open **API Keys** in the Console, then create a new key.
2. Select the Service Mode based on the model and pricing plan you wish to use.
3. Use that key in the API request.

**One API key corresponds to one Service Mode.** To use multiple modes, create separate keys. The mode is determined by the key, not by additional parameters in the request; there is no automatic fallback to another mode.

## Check the catalog and pricing based on the API key

Call `GET /v1/models` using the API key you intend to use:

```bash theme={null}
curl https://api.hostlinku.com/v1/models \
  -H "Authorization: Bearer $HOSTLINKU_API_KEY"
```

The models and prices in the response are determined by the Service Mode associated with the API key used. The price for each model is available in the `pricing` object. See the [Models reference](https://docs.hostlinku.com/en/models.md) for field definitions and public catalog endpoints.

## Usage limits and compatibility

Quotas are shared within the organization for each Service Mode. Details are available at [Usage & Limits](https://docs.hostlinku.com/en/usage-and-limits.md).

Support for features, protocols, and output limits follows the model. Use the [API Reference](https://docs.hostlinku.com/en/api-reference.md) and model pages to check for support.


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