---
title: "Upscale a previously generated video to twice its resolution (2x). Pass the video `url` you received from `createVideo`, `createVideoFromReferences`, or `editVideo` — it must be a video you generated within the last 7 days; arbitrary external videos are not accepted. Only videos below 960x960 pixels can be upscaled (larger sources are rejected). Synchronous: the call blocks until upscaling finishes and returns the new video URL and its duration in seconds. Billed per second of video, independent of model, charged only on success. Pass an optional `request_id` to tag the result so you can locate it later via `getVideoResults`. Related tools: `createVideo` for image-to-video, `editVideo` to modify a generated video. Requires an API key (user scope)."
method: POST
path: "/assets/video/upscale"
tags: ["Videos"]
---

# Upscale a previously generated video to twice its resolution (2x). Pass the video `url` you received from `createVideo`, `createVideoFromReferences`, or `editVideo` — it must be a video you generated within the last 7 days; arbitrary external videos are not accepted. Only videos below 960x960 pixels can be upscaled (larger sources are rejected). Synchronous: the call blocks until upscaling finishes and returns the new video URL and its duration in seconds. Billed per second of video, independent of model, charged only on success. Pass an optional `request_id` to tag the result so you can locate it later via `getVideoResults`. Related tools: `createVideo` for image-to-video, `editVideo` to modify a generated video. Requires an API key (user scope).

`POST /assets/video/upscale`

## Request body

- UpscaleVideoPayloadPublic — Payload for upscaling a previously generated video to twice its resolution.
  - `video` string, required — URL of a video you generated in the last 7 days (returned by createVideo, createVideoFromReferences, or editVideo). External URLs are not accepted. Only videos below 960x960 pixels can be upscaled.
  - `request_id` string — Optional client-provided identifier for this request. Use this to retrieve results later via the results endpoint.

## Response `200`

Success

- VideoResult
  - `url` string — URL to the generated video file
  - `duration` number, float — Duration of the video in seconds
  - `has_audio` boolean
  - `request_id` string
  - `created_at` integer

## Other responses

- `400` — Error

---

[API](https://skmtc.net/ludo/apis/ludo-ai-api.md) · [All operations](https://skmtc.net/ludo/apis/ludo-ai-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ludo/ludo-ai-api/revisions/3af866d68651/schema)