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Flashvsr

Integrate

Model id flashvsr/upscale/video
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/flashvsr/upscale/video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Files like the example: $0.553 553 API credits · ≈ ₽58.32 your files are measured before the run Run it on this page

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Open model Upscale #upscale#video-to-video

Video upscaler that enlarges footage by a factor of 1 to 4, with optional audio passthrough

Open model · Video

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

Build a request

Controls are generated from the model schema. The code and the price update as you change them.

•required video_url
Drop a file, or

Source video for upscaling.

default 2

Scaling multiplier for upscaling.

Advanced acceleration · output_format · output_quality · output_write_mode · quality · seed · color_fix · preserve_audio · enable_safety_checker
acceleration default regular

Choose how much to accelerate VAE decoding, with greater acceleration also supporting longer videos. The modes trade off quality and speed: regular gives the best quality, full is the fastest, and high offers a balance.

output_format default X264 (.mp4)

Format for the resulting video.

output_quality default high

Quality setting for the resulting video.

output_write_mode default balanced

Mode used to write the resulting video.

default 70

Tile overlap setting for blending, ranging from 0 to 100 to prevent grid artifacts. For high-resolution videos, 70–85 is recommended; for faster processing, use 50–70. Increasing the setting improves quality by adding overlap.

Random seed used during generation.

POST /run/flashvsr/upscale/video?wait=20 quote → $0.553
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/flashvsr/upscale/video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Run this request

Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key

About Flashvsr

Upscales a video from `video_url` using `upscale_factor` between 1 and 4 (default 2). Options include `color_fix`, `preserve_audio` to copy the original audio tracks, and `acceleration` of regular, high or full. Output can be X264 mp4, VP9 webm, ProRes 4444 mov or GIF, with `output_quality` from low to maximum.

Parameters

Send either the canonical name or the native name, not both. Canonical names

NameType DefaultAllowed Description
upscale_factoroptional
Typenumber
Default2
1 – 4
Scaling multiplier for upscaling.
seedoptional
Typeinteger | null
Random seed used during generation.
video_urlrequired video
Typeurl · video
Source video for upscaling.
accelerationoptional
Typeenum
Defaultregular
regularhighfull
Choose how much to accelerate VAE decoding, with greater acceleration also supporting longer videos. The modes trade off quality and speed: regular gives the best quality, full is the fastest, and high offers a balance.
color_fixoptional
Typeboolean
Defaulttrue
Enables correction of colors.
qualityoptional
Typeinteger
Default70
0 – 100
Tile overlap setting for blending, ranging from 0 to 100 to prevent grid artifacts. For high-resolution videos, 70–85 is recommended; for faster processing, use 50–70. Increasing the setting improves quality by adding overlap.
preserve_audiooptional
Typeboolean
Defaultfalse
Audio retention option that uses FFmpeg, where possible, to include the source audio tracks in the upscaled video.
output_formatoptional
Typeenum
DefaultX264 (.mp4)
X264 (.mp4)VP9 (.webm)PRORES4444 (.mov)GIF (.gif)
Format for the resulting video.
output_qualityoptional
Typeenum
Defaulthigh
lowmediumhighmaximum
Quality setting for the resulting video.
output_write_modeoptional
Typeenum
Defaultbalanced
fastbalancedsmall
Mode used to write the resulting video.
enable_safety_checkeroptional
Typeboolean
Defaulttrue
Screening can be relaxed by setting false, provided the caller is authorized.
required Canonical name, also accepted

File parameters take a public https:// URL, a data: URI up to 10 MB, or the file_url of an upload. Files

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "flashvsr/upscale/video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 553,
    "usd": "0.553",
    "charged": 553,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "seed": 42
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
video
object {url, content_type, file_name, file_size}Video file produced by upscaling.
seed
integerRandom seed used during generation.

For AI agents: this page as Markdown is at https://doitong.com/en-US/developers/models/flashvsr/upscale/video.md. All models and guides: https://doitong.com/developers/llms.txt