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

# tune_metric

#### `tune_metric: <string>` (Optional)

## Description

Specifies a metric that you want AutoML to use for optimizing training experiments.

* The tune metric needs to be present in the list of metrics in the model plan.
* The tune metric is used for early stopping and model selection.
* For available metrics, please refer to [Kumo Evaluation Metrics](/evaluation-metrics).

**Valid values:** Any metric accepted by [`metrics`](/reference/metrics) for the task, provided it is included in the model plan's `metrics` list. `loss` is also valid for non-link-prediction tasks and does not need to be listed in `metrics`.

### Supported Task Types

* All

### Default Values

| run\_mode | Default Value |
| --------- | ------------- |
| FAST      | Inferred      |
| NORMAL    | Inferred      |
| BEST      | Inferred      |