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Infinitalk · Video to Video

Integrate

Model id infinitalk/video-to-video
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/infinitalk/video-to-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",
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

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

Files like the example: $2.175 2,175 API credits your files are measured before the run Run it on this page

Get API key
Meituan Lipsync & Avatars Lipsyncup to 720p #video-to-video

Lip-sync that makes a face in an input video speak a supplied audio track

Meituan · 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

Text instructions that guide video generation.

•required video_url
Drop a file, or

Input video's URL.

•required audio_url
Drop a file, or

URL pointing to the audio file.

resolution default 480p

Output video resolution; only 480p and 720p are supported.

default 145

Frame count for generation, ranging from 81 through 129, inclusive.

Advanced acceleration · seed · enable_safety_checker
acceleration default regular

Acceleration level applied during generation.

default 42

Seed that makes generation reproducible. Setting it to None selects a seed randomly.

POST /run/infinitalk/video-to-video?wait=20 quote → $2.175
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/infinitalk/video-to-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",
    "audio": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/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 Infinitalk · Video to Video

Takes `video_url`, `audio_url` and a text prompt, and produces a talking video with the face synced to the audio. `resolution` is 480p or 720p and `num_frames` ranges from 41 to 241, default 145. `acceleration` can be none, regular or high, and a seed can be set.

Parameters

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

NameType DefaultAllowed Description
video_urlrequired video
Typeurl · video
Input video's URL.
audio_urlrequired audio
Typeurl · audio
URL pointing to the audio file.
promptrequired
Typestring
Text instructions that guide video generation.
num_framesoptional
Typeinteger
Default145
41 – 241
Frame count for generation, ranging from 81 through 129, inclusive.
resolutionoptional
Typeenum
Default480p
480p720p
Output video resolution; only 480p and 720p are supported.
seedoptional
Typeinteger
Default42
0 – 4,294,967,295
Seed that makes generation reproducible. Setting it to None selects a seed randomly.
accelerationoptional
Typeenum
Defaultregular
noneregularhigh
Acceleration level applied during generation.
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": "infinitalk/video-to-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": 2175,
    "usd": "2.175",
    "charged": 2175,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "audio_url": "https://content.doitong.com/audio/showcase/v3/tools/dub_es.mp3",
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "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.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/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 generation.
seed
integerSeed value applied during generation.

More models: Lipsync & Avatars

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