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H3 Max Recast

Integrate

Model id minimax/h3-max/recast
# 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/minimax/h3-max/recast?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",
    "images": [
      "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
    ]
  }'

# 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: $4.50 4,500 API credits your files are measured before the run Run it on this page

Get API key
MiniMax Video to Video Reference inputsup to 1080P #video-to-video#video-editing#character-replacement

Replaces the people in a video with people from reference photos while keeping motion, camera and audio

Made on Doitong

Public works made with Hailuo 03 New Turbo by the Doitong community. Reuse a prompt in one click.

Public works shown: 16
Close-up shot of a striking model with piercing eyes and flawless skin, a white snake elegantly c... Video

Close-up shot of a striking model with piercing eyes and flawless skin, a white snake elegantly coiled around her head and neck, its scales glistening in soft, diffused light. The camera gently zooms in, emphasizing the intricate texture of the snake’s scales and the model’s striking facial...

Animate the stickman drawings into a smooth dance animation. The simple black stick figure perfor... Video

Animate the stickman drawings into a smooth dance animation. The simple black stick figure performs fun rhythmic dance moves — waving its arms, bending knees, jumping lightly, spinning, and swaying side to side in time with upbeat music. Keep the white background clean and minimal. The motion...

A hyper-realistic, cinematic transformation sequence of the man in the uploaded image, sitting in... Video

A hyper-realistic, cinematic transformation sequence of the man in the uploaded image, sitting in meditation inside a traditional Japanese room. The atmosphere begins to tremble slightly as soft blue light flows around him. From the ground, thousands of magnetic nano-particles rise, shimmering...

A cinematic transformation video of the man. The scene begins with him standing naturally, then l... Video

A cinematic transformation video of the man. The scene begins with him standing naturally, then looking down at his hands as glowing holographic projections appear around his body. Mechanical parts of the Iron Man armor start assembling piece by piece with smooth animation: chest plate forming,...

An ultra-epic anime cinematic of Luffy’s greatest enemy unleashing a terrifying blind rage, rampa... Video

An ultra-epic anime cinematic of Luffy’s greatest enemy unleashing a terrifying blind rage, rampaging uncontrollably against nature itself. His gigantic body is surrounded by a storm of black and crimson energy, crackling with lightning that scorches the ground. His roar shakes the heavens,...

A fair-skinned red-haired woman with freckles tightly embraces a majestic white tiger with faint ... Video

A fair-skinned red-haired woman with freckles tightly embraces a majestic white tiger with faint reddish stripes. They remain close, perfectly synchronized in stillness. The woman blinks slowly, slightly tilting her head with a serious and intense expression. The tiger breathes gently — its...

The snowboarder is riding across massive, fluffy white clouds as if they were snow-covered mounta... Video

The snowboarder is riding across massive, fluffy white clouds as if they were snow-covered mountains, with dramatic lighting and deep shadows adding volume and realism. The background shows a stunning blue sky with scattered soft clouds and subtle light rays. crisp cinematic quality, vivid...

Мрачная комната для допросов, тесная и давящая. Одна резкая лампа под потолком бросает конус холо... Video

Мрачная комната для допросов, тесная и давящая. Одна резкая лампа под потолком бросает конус холодного света на металлический стол, вокруг густые тени. Виновный подозреваемый сидит в наручниках по одну сторону стола: потеет, нервно бегает глазами, тяжело дышит, избегает взгляда. Напротив —...

Build a request

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

0 / 2000

Optional instructions specifying person replacements and any other elements to preserve or modify.

•required video_url
Drop a file, or

Source video with each shot capped at 15 seconds and an overall duration between 5 and 30 seconds.

•required reference_image_urls
Drop a file, or · up to 4

Person-replacement photos: the default left-to-right assignment to main video subjects applies across all shots containing each subject. Provide one photo for each new person.

resolution default 1080P
Advanced seed · enhance_realism · enable_safety_checker

Seed for random generation; leaving it empty selects one randomly.

POST /run/minimax/h3-max/recast?wait=20 quote → $4.50
# 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/minimax/h3-max/recast?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",
    "images": [
      "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
    ]
  }'

# 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 H3 Max Recast

Recasts a 5 to 30 second source video (no shot longer than 15 seconds) using 1 to 4 reference photos, one per new person. By default they replace the main people from left to right. An optional `prompt` (up to 2000 characters) says who becomes whom, `resolution` is 768P or 1080P, and `enhance_realism` improves skin texture and blending.

Parameters

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

NameType DefaultAllowed Description
video_urlrequired video
Typeurl · video
Source video with each shot capped at 15 seconds and an overall duration between 5 and 30 seconds.
reference_image_urlsrequired images
Typeurl[] · image
≤ 4 items
Person-replacement photos: the default left-to-right assignment to main video subjects applies across all shots containing each subject. Provide one photo for each new person.
promptoptional
Typestring | null
≤ 2,000 characters
Optional instructions specifying person replacements and any other elements to preserve or modify.
resolutionoptional
Typeenum
Default1080P
768P1080P
seedoptional
Typeinteger | null
≥ 0
Seed for random generation; leaving it empty selects one randomly.
enhance_realismoptional
Typeboolean
Defaultfalse
Realism enhancement, disabled unless explicitly enabled, that makes skin textures more natural and helps replacement people blend into the scene.
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": "minimax/h3-max/recast",
  "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": 4500,
    "usd": "4.50",
    "charged": 4500,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "reference_image_urls": [
      "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
    ]
  },
  "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 featuring the replacement cast and retaining the original audio.
seed
integerSeed applied during generation.

More models: Video to Video

For AI agents: this page as Markdown is at https://doitong.com/developers/models/minimax/h3-max/recast.md. All models and guides: https://doitong.com/developers/llms.txt