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

# Model Naming Changes

> Guide to migrating model names from legacy SDK enums to standalone model file IDs.

## Sparrow -> Rook

Our perceptual speech enhancement models are now called Rook.

### Perceptual Speech Enhancement Models

**Sparrow models have been renamed to Rook**.

| Old name    | New name | Old model ID      | New model ID   |
| ----------- | -------- | ----------------- | -------------- |
| Sparrow L   | Rook L   | `sparrow-l-48khz` | `rook-l-48khz` |
| Sparrow L16 | Rook L16 | `sparrow-l-16khz` | `rook-l-16khz` |
| Sparrow L8  | Rook L8  | `sparrow-l-8khz`  | `rook-l-8khz`  |
| Sparrow S48 | Rook S48 | `sparrow-s-48khz` | `rook-s-48khz` |
| Sparrow S16 | Rook S16 | `sparrow-s-16khz` | `rook-s-16khz` |
| Sparrow S8  | Rook S8  | `sparrow-s-8khz`  | `rook-s-8khz`  |