> ## 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.

# base_lr

#### `base_lr: <list[float]>` (Optional)

## Description

A list of potential learning rates in model optimizer during model optimization.

* `base_lr` must be `> 0`.

### Supported Task Types

* All

### Default Values

| run\_mode | Default Value                          |
| --------- | -------------------------------------- |
| FAST      | `[1e-4, 5e-4, 1e-3, 5e-3, 1e-2, 5e-2]` |
| NORMAL    | `[1e-4, 5e-4, 1e-3, 5e-3, 1e-2, 5e-2]` |
| BEST      | `[1e-4, 5e-4, 1e-3, 5e-3, 1e-2, 5e-2]` |