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ThinkSound

Integrate

Model id thinksound
# 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/thinksound?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.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Up to $3.60 per run charged by actual usage, the rest is refunded Run it on this page

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Open model Video to Audio #audio-generation#video-to-audio

Generates a matching soundtrack for a video and returns the video with the new audio merged in

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.

default

Optional audio-generation guidance that replaces the prompt otherwise extracted from the video.

•required video_url
Drop a file, or

Video URL used as the source for audio generation.

Advanced num_inference_steps · cfg_scale · seed
default 24

Inference step count used to generate audio.

default 5

Classifier-free guidance strength used to generate audio.

Seed value used by the random-number generator.

POST /run/thinksound?wait=20 quote → $3.60
# 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/thinksound?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.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 ThinkSound

Creates audio for a clip given by `video_url` and returns a video that already contains the generated sound. An optional `prompt` steers the result; when omitted, a prompt is derived from the video itself. `num_inference_steps` (2 to 100) and `cfg_scale` (1 to 20) tune generation, and `seed` allows repeatable output.

Parameters

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

NameType DefaultAllowed Description
video_urlrequired video
Typeurl · video
Video URL used as the source for audio generation.
promptoptional
Typestring
Default
Optional audio-generation guidance that replaces the prompt otherwise extracted from the video.
seedoptional
Typeinteger | null
Seed value used by the random-number generator.
num_inference_stepsoptional
Typeinteger
Default24
2 – 100
Inference step count used to generate audio.
cfg_scaleoptional
Typenumber
Default5
1 – 20
Classifier-free guidance strength used to generate audio.
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": "thinksound",
  "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": 3600,
    "usd": "3.60",
    "charged": 3600,
    "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
    },
    "prompt": "An acoustic guitar being played indoors."
  },
  "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}Output video containing generated audio.
prompt
stringPrompt that guided audio generation.

More models: Video to Audio

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