# Starlight Fast 1

### Model Overview

**Starlight Fast 1** is the first generation diffusion video enhancement model optimized for speed. It delivers fast results and is intended for workflows where performance and turnaround time are prioritized over maximum quality.

Fast 1 provides automatic enhancement with sharper detail than traditional upscalers, making it well suited for rapid iteration or time sensitive processing that still require stunning results.

### Key Capabilities

* First generation fast diffusion model optimized for quick results
* Prioritizes speed over maximum quality and realism

### Pricing

| Frames Per Credit — 1080p | Frames Per Credit — 4k |
| ------------------------- | ---------------------- |
| \~52                      | \~24                   |

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For more accurate estimates we recommend checking out our [Credit Calculator](https://developer.topazlabs.com/credit/calculator).
{% endhint %}

### Getting Started

**Endpoint**

* <https://api.topazlabs.com/video/>
  * `model` — `"slf-1"`

**Model-Specific Parameters**

* `input_frame_count` — integer, optional; maximum 9000
* `video_profile` — string, optional
* `video_bit_depth` — integer, optional
* `video_codec` — string, optional

### Examples

<table data-card-size="large" data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center">Click to view</td><td><a href="https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2F2zPx68p0YontKmQasSVT%2FStarlight_Fast_1_(Ex_1)_slider.jpg?alt=media&#x26;token=c50e5742-7489-46b5-9a37-0572d46cb103">Starlight_Fast_1_(Ex_1)_slider.jpg</a></td><td><a href="https://compare.topazlabs.com/share/video?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FUnderwater-dreamscape-a-pearl-white-freshwater-angel-fish-g___.mp4&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FUnderwater-dreamscape-a-pearl-white-freshwater-angel-fish-g____Precise_Starlight_Speed.mp4&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/video?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FUnderwater-dreamscape-a-pearl-white-freshwater-angel-fish-g___.mp4&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FUnderwater-dreamscape-a-pearl-white-freshwater-angel-fish-g____Precise_Starlight_Speed.mp4&#x26;src2label=After&#x26;zoom=1</a></td></tr><tr><td align="center">Click to view</td><td><a href="https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2FbMTTIriMtBtOwW7VgRDZ%2FStarlight_Fast_1_(Ex_2)_slider.jpg?alt=media&#x26;token=0a0549d3-c1f1-4f03-9ecd-b43372c793bd">Starlight_Fast_1_(Ex_2)_slider.jpg</a></td><td><a href="https://compare.topazlabs.com/share/video?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FAnime%20before.mp4&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FAnime%20After.mp4&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/video?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FAnime%20before.mp4&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FAnime%20After.mp4&#x26;src2label=After&#x26;zoom=1</a></td></tr></tbody></table>