Wan 2.6 Image to Video Flash API Reference

Request body

Submit an async generation request. The model field selects the model; other fields are model-specific input parameters.

stringmodelrequired

Model identifier. Set to alibaba/wan/2.6/image-to-video/flash.

Default: alibaba/wan/2.6/image-to-video/flash

stringpromptrequired

The text prompt describing the desired video motion. Max 800 characters.

stringimagerequired

URL of the image to use as the first frame. Must be publicly accessible or base64 data URI. Image dimensions must be between 240 and 7680.

Optional<string>audio

URL of the audio to use as the background music. Must be publicly accessible. Limit handling: If the audio duration exceeds the duration value (5, 10, or 15 seconds), the audio is truncated to the first N seconds, and the rest is discarded. If the audio is shorter than the video, the remaining part of the video will be silent. For example, if the audio is 3 seconds long and the video duration is 5 seconds, the first 3 seconds of the output video will have sound, and the last 2 seconds will be silent. - Format: WAV, MP3. - Duration: 3 to 30 s. - File size: Up to 15 MB.

Optional<string>resolution

Video resolution. Valid values: 720p, 1080p

Allowed values: 720p, 1080p

Default: 1080p

Optional<integer>duration

Duration of the generated video in seconds. Choose between 5, 10 or 15 seconds.

Allowed values: 5, 10, 15

Default: 5

Optional<boolean>multi_shots

When true, enables intelligent multi-shot segmentation. Only active when enable_prompt_expansion is True. Set to false for single-shot generation.

Default: false

Optional<integer>seed

Random seed for reproducibility. If None, a random seed is chosen.

Response Schema

The submit endpoint returns an accepted generation task. Poll the result endpoint with the returned id for terminal outputs or errors.

Optional<string>error

Error message if the task failed. Empty on success.

stringidrequired

Unique identifier for the generation task.

Optional<string>model

Model ID used for the prediction.

Optional<array>outputs

Array of generated content. Empty when status is not completed.

stringstatusrequired

Status of the task: pending, running, completed, failed, or timeout.

Allowed values: pending, running, completed, failed, timeout

Model capabilities

array<string>capability_tagsrequired

Capabilities declared by the model registry.

Default: image-to-video

stringexecution_moderequired

Execution mode declared by the model registry.

Default: async

# 1. Submit a generation request curl -X POST https://api.sandbase.ai/v1/run \ -H "Authorization: Bearer $SANDBASE_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "alibaba/wan/2.6/image-to-video/flash", "prompt": "A comedic cinematic demo where typed prompts physically transform reality. Photoreal, strong match cuts, coherent main character, no subtitles.\n\nShot 1 [0-4s] Continue from first frame. The creator presses \"PRINT\". The machine clunks like a spaceship. Creator whispers: \"Okay… I'm pressing enter.\"\nShot 2 [4-8s] Smash cut: the printed paper flies into the air and unfolds into a full desert canyon scene around the desk, like reality is being unrolled. Creator says: \"Wait—my prompt has physics?\"\nShot 3 [8-12s] Hard cut: the paper tears and reveals a tropical jungle behind it, perfectly lit, cinematic sun. Creator laughs: \"This is exactly why we do AI.\"\nShot 4 [12-15s] Hard cut back to studio. The printer prints a final line (not shown clearly). Creator looks to camera: \"Multi-scene. Single prompt.\"", "image": "https://static.sandbase.ai/examples/bfl/flux-2/dev/edit/input_images_0.png", "audio": "https://static.sandbase.ai/examples/input.mp3", "duration": 5 }' # 2. If the response is still running, poll the returned id curl https://api.sandbase.ai/v1/run/run_abc123 \ -H "Authorization: Bearer $SANDBASE_API_KEY"