Wan 2.5 | EmpirioLabs AI Docs

Alibaba Cloud · Video Generation

POST /v1/videos/generations

Alibaba’s Wan 2.5 video model with text-to-video and image-to-video, native audio, optional custom audio tracks, and 480p to 1080p output.

At a glance

Field	Value
Model id	`wan-2-5`
Model release date	2025-09-24
Input modalities	Text, Image
Output modalities	Video
Context window	-
Weight precision	-
Region	Singapore
Features	text_to_video, image_to_video, audio
Native inference	No
New	No
Supported endpoints	`POST /v1/videos/generations`
Alternate model ids	`alibaba/wan-2.5`, `wan2.5`

Pricing

Charge	Spec	Rate
480P	per second	$0.05
720P	per second	$0.10
1080P	per second	$0.15

Example request

$ curl https://api.empiriolabs.ai/v1/videos/generations \
>   -H 'Authorization: Bearer $EMPIRIOLABS_API_KEY' \
>   -H 'Content-Type: application/json' \
>   -d '{"model": "wan-2-5", "prompt": "sunrise over the ocean", "duration": 6}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	yes	-	Scene description.
`mode`	enum	no	`"auto"`	Auto detects from attachments. t2v: text-to-video. i2v: animate one image. · Allowed: `auto`, `t2v`, `i2v`
`resolution`	enum	no	`"1080p"`	Output resolution. · Allowed: `480p`, `720p`, `1080p`
`duration`	number	no	`5`	Clip length in seconds. Only 5 or 10 are valid. · Range: 5 – 10
`aspect_ratio`	enum	no	`"16:9"`	Used for text-to-video; image-to-video follows the source image. 480p supports 16:9, 9:16, and 1:1 only. · Allowed: `16:9`, `9:16`, `1:1`, `4:3`, `3:4`
`image`	string	no	-	Source image URL for i2v.
`audio_url`	string	no	-	Optional custom audio track URL (WAV or MP3, about 3 to 30 seconds). Without it the model generates native audio.
`negative_prompt`	string	no	`""`	What to avoid.
`seed`	number	no	-	Reproducibility seed.
`prompt_extend`	boolean	no	true	Let the service rewrite the prompt for better results.
`watermark`	boolean	no	false	Add a provenance watermark to the output.

Notes

Modes: text-to-video and image-to-video with native audio, or supply audio_url for a custom track (WAV or MP3, about 3 to 30 seconds). Durations are 5 or 10 seconds. 480p output supports 16:9, 9:16, and 1:1.

Machine-readable schema: GET https://api.empiriolabs.ai/v1/models/wan-2-5.