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

# Topaz Starlight Fast

> Topaz's fastest generative upscaler at half the price of Starlight.

Topaz's fastest generative upscaler at half the price of Starlight. Good for drafts.

| | |
| - | - |
| Model id | `topaz-starlight-fast-fal` |
| Media | video |
| Submit to | `POST /v1/videos` |
| Price | 3.3 credits per\_second before discounts |
| Typical time | about 1200.0 s |

## Original frame rate

Keeps your clip's own frame rate, up to 30 fps. For 60 fps footage, choose 60 fps.

Select it with `"mode": "original"`, or leave `mode` out and the inputs decide.

**Required:** `source_video`\
**Optional:** none

Resolution tiers: `1080p`, `4k` (send as `tier`).

```json theme={null}
{
  "model": "topaz-starlight-fast-fal",
  "mode": "original",
  "source_video": "asset_…",
  "tier": "1080p"
}
```

| Field | Allowed | Default |
| - | - | - |
| `source_video` | asset id (up to 1) | |

## 60 fps

Outputs 60 fps, adding in-between frames for smoother motion. Twice the cost per second.

Select it with `"mode": "smooth_60"`, or leave `mode` out and the inputs decide.

**Required:** `source_video`\
**Optional:** none

Resolution tiers: `1080p`, `4k` (send as `tier`).

```json theme={null}
{
  "model": "topaz-starlight-fast-fal",
  "mode": "smooth_60",
  "source_video": "asset_…",
  "tier": "1080p"
}
```

| Field | Allowed | Default |
| - | - | - |
| `source_video` | asset id (up to 1) | |

Reference inputs take asset ids from [`POST /v1/uploads`](/uploads) or an earlier output's `asset_id`.
Prices and allowed values come from the live catalog; `GET /v1/models/topaz-starlight-fast-fal` is always current.


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