AlibabaMediumHigh

Wan 2.7 T2V

Alibaba Wan 2.7 text-to-video model. Supports up to 15 seconds, audio synchronization for voice/music, multilingual prompts, and prompt expansion, at 720p or 1080p.

1740 credits

per second, tiered by resolution

Text-to-video generation up to 15 seconds

Audio synchronization for voice and music (auto-generated or user-supplied)

Multilingual prompt support

Automatic prompt expansion for short prompts

720p/1080p output with multiple aspect ratios

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Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "wan-video/wan-2.7-t2v",
  "input": {
    "prompt": "A chef in a busy kitchen explains a recipe while chopping vegetables, warm natural lighting.",
    "audio": "https://example.com/narration-ko.mp3",
    "resolution": "1080p",
    "duration": 8
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	Text prompt for video generation
`negative_prompt`	string	No	-	Negative prompt — describes content that should not appear in the video
`audio`	string	No	-	Audio file (wav/mp3, 3-30s, ≤15MB) for voice/music synchronization. If not provided, the model auto-generates matching audio.
`resolution`	string	No	1080p	Output video resolution 720p1080p
`aspect_ratio`	string	No	16:9	Aspect ratio of the generated video 16:99:161:14:33:4
`duration`	integer	No	5	Duration of the generated video in seconds
`enable_prompt_expansion`	boolean	No	true	Automatically expand and optimize the prompt for better results. Improves quality for short prompts but increases latency.
`seed`	integer	No	-	Random seed for reproducible generation. Range: 0-2147483647

How to Provide File Input

There are 3 ways to provide files for the audio parameter:

Recommended

Direct Upload (Multipart)

Attach files directly to POST /v1/predictions/upload. No separate upload step needed.

curl -X POST "https://api.core.today/v1/predictions/upload" \
  -H "X-API-Key: cdt_your_api_key" \
  -F "model=wan-video/wan-2.7-t2v" \
  -F 'input={"prompt":"your prompt here"}' \
  -F "file:audio=@your_file.png"

Image URL

Pass a publicly accessible URL directly. You can also use file_url from the Storage API.

{
  "model": "wan-video/wan-2.7-t2v",
  "input": {
    "prompt": "your prompt here",
    "audio": "https://example.com/image.jpg"
  }
}

See the File Upload docs for more upload methods including Presigned URLs.

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Multilingual voice-synced clip

Generate a video with dialogue synchronized to an uploaded audio track.

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "wan-video/wan-2.7-t2v",
  "input": {
    "prompt": "A chef in a busy kitchen explains a recipe while chopping vegetables, warm natural lighting.",
    "audio": "https://example.com/narration-ko.mp3",
    "resolution": "1080p",
    "duration": 8
  }
}'

Auto-generated audio from a short prompt

Let the model expand a short prompt and auto-generate matching audio.

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "wan-video/wan-2.7-t2v",
  "input": {
    "prompt": "A drummer performing an energetic solo on stage.",
    "enable_prompt_expansion": true,
    "resolution": "720p",
    "duration": 5
  }
}'