> For the complete documentation index, see [llms.txt](https://developer.topazlabs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.topazlabs.com/video-models/starlight/starlight-fast-1-deprecated.md).

# Starlight Fast 1 (Deprecated)

First generation generative upscaling for speed

### 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 |
| ------------------------- | ---------------------- |
| 52.0833                   | 23.8357                |

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

### **Endpoint**

[https://api.topazlabs.com/video/](<https://api.topazlabs.com/video/&#xA;>)

### **Parameters**

`model` <a class="button secondary medium">string</a><a class="button secondary medium">required</a>

Model name: <a class="button secondary medium">"slf-1"</a>

***

`inputFrameCount` <a class="button secondary medium">integer</a><a class="button secondary medium">optional</a><a class="button secondary medium">default="null"</a>

Input video number of frames.

***

`inputFrameRate` <a class="button secondary medium">decimal</a><a class="button secondary medium">optional</a><a class="button secondary medium">default="null"</a>

Input video frame rate in frames per second.

***

`inputHeight` <a class="button secondary medium">integer</a><a class="button secondary medium">optional</a><a class="button secondary medium">default=1080</a>

Input video height in pixels.

***

`inputWidth` <a class="button secondary medium">integer</a><a class="button secondary medium">optional</a><a class="button secondary medium">default=1920</a>

Input video width in pixels.

***

`outputHeight` <a class="button secondary medium">integer</a><a class="button secondary medium">optional</a><a class="button secondary medium">default=1080</a>

Output video height in pixels.

***

`outputWidth` <a class="button secondary medium">integer</a><a class="button secondary medium">optional</a><a class="button secondary medium">default=1920</a>

Output video width in pixels.

***

`videoBitDepth` <a class="button secondary medium">integer</a><a class="button secondary medium">optional</a><a class="button secondary medium">default="null"</a>

Output video bit depth.

***

`videoCodec` <a class="button secondary medium">string</a><a class="button secondary medium">optional</a><a class="button secondary medium">default="null"</a>

Output video codec.

Possible values: <a class="button secondary medium">"ffv1"</a>, <a class="button secondary medium">"prores"</a>, <a class="button secondary medium">"vp9"</a>

***

`videoProfile` <a class="button secondary medium">string</a><a class="button secondary medium">optional</a><a class="button secondary medium">default="null"</a>

Output video profile.

Possible values: <a class="button secondary medium">420</a>, <a class="button secondary medium">422</a>, <a class="button secondary medium">444</a>

***

`watermark` <a class="button secondary medium">boolean</a><a class="button secondary medium">optional</a><a class="button secondary medium">default="false"</a>

Whether to watermark the output.

### 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&amp;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&amp;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>


---

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