Kling 3.0 Turbo Pro Text to Video

POST/v1/run

Kling Video 3.0 Turbo is KwaiVGI's text-to-video AI model. Turn written scripts and prompts into professional-quality video clips with realistic motion, lighting, and scene composition.

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 kwaivgi/kling-video/3.0/turbo/pro/text-to-video.

Default: kwaivgi/kling-video/3.0/turbo/pro/text-to-video

stringpromptrequired

Text prompt to generate the video with. For best results keep the prompt under 2500 characters. Mutually exclusive with `multi_prompt`.

Optional<string>aspect_ratio

The aspect ratio of the generated image.

Allowed values: 16:9, 9:16, 1:1

Optional<integer>duration

Video length in seconds.

Allowed values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15

Default: 5

Optional<array<object>>multi_prompt

Multi-shot storyboard (1-6 shots). Each shot has its own prompt and duration; the total duration must not exceed 15s. Mutually exclusive with `prompt`.

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: text-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": "kwaivgi/kling-video/3.0/turbo/pro/text-to-video",
  "prompt": "A jazz saxophonist sways gently into the note, cheeks pressing, sweat glistening, smoke drifting through the warm light. The camera eases in slowly. Photorealistic, soulful, moody.",
  "aspect_ratio": "16:9",
  "duration": 5
}'

# 2. If the response is still running, poll the returned id
curl https://api.sandbase.ai/v1/generations/run_abc123 \
  -H "Authorization: Bearer $SANDBASE_API_KEY"

Response202 Accepted

{
  "id": "run_abc123",
  "model": "kwaivgi/kling-video/3.0/turbo/pro/text-to-video",
  "status": "running",
  "outputs": []
}