Kwaivgi Kling V1.6 Multi I2V Pro

Playground

Kling 1.6 Multi Pro boosts image-to-video generation by 195% vs Kling 1.5, with improved prompt understanding, physics and visuals. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Kling V1.6 Multi-Image-to-Video Pro

Kling V1.6 Multi-Image-to-Video Pro is Kuaishou’s advanced multi-image-to-video generation model that creates stunning videos from multiple reference images. Upload up to 4 images, describe the motion you want, and generate cinematic videos that blend and animate your source images seamlessly.

Why It Stands Out

Multi-image input: Use up to 4 reference images for richer, more complex video generation.
Pro-level quality: Premium output with exceptional detail and motion coherence.
Prompt-guided motion: Describe camera movements, actions, and transitions.
Negative prompt support: Exclude unwanted elements for cleaner outputs.
Flexible aspect ratios: Choose from 16:9, 9:16, 1:1 to fit any platform.
Commercial-grade output: Professional quality suitable for ads and branded content.

Parameters

Parameter	Required	Description
prompt	No	Text description of desired motion and style.
negative_prompt	No	Elements to avoid in the output.
images	Yes	Reference images to animate (1–4 images, upload or public URL).
duration	No	Video length: 5 or 10 seconds (default: 5).
aspect_ratio	No	Output aspect ratio: 16:9, 9:16, 1:1 (default: 16:9).

How to Use

Upload your images — add 1 to 4 reference images via drag and drop or public URL.
Write a prompt — describe the motion, camera movement, and visual style you want.
Add a negative prompt (optional) — specify elements to exclude.
Set duration — choose 5 or 10 seconds.
Select aspect ratio — choose the format that fits your platform.
Click Run and wait for your video to generate.
Preview and download the result.

Best Use Cases

Automotive & Product Ads — Create dynamic commercials from product photos.
Travel & Lifestyle — Animate destination photos into cinematic sequences.
Multi-Scene Storytelling — Blend multiple images into cohesive narratives.
Marketing & Advertising — Produce high-quality branded video content.
Creative Projects — Generate unique videos from artwork and photography.

Pricing

Duration	Price
5 seconds	$0.45
10 seconds	$0.90

Pro Tips for Best Quality

Use high-resolution, well-lit source images for optimal results.
Multiple images work best when they share visual consistency (style, lighting, subject).
Be detailed in your prompt — describe camera movement, transitions, and atmosphere.
Include cinematic keywords like “aerial drone shot,” “low-angle tracking,” “commercial film look.”
Use negative prompts to reduce artifacts like blur or distortion.
Choose 16:9 for widescreen commercials, 9:16 for social media verticals.

Notes

Maximum 4 reference images per generation.
Ensure uploaded image URLs are publicly accessible.
Processing time varies based on duration and current queue load.
Please ensure your prompts comply with content guidelines.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/kwaivgi/kling-v1.6-multi-i2v-pro" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "duration": 5,
    "aspect_ratio": "1:1"
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
prompt	string	Yes		-	The positive prompt for the generation. max length 2500
negative_prompt	string	No		-	The negative prompt for the generation.
images	array	Yes	[]	1 ~ 4 items	A list of images to use as style references.
duration	integer	No	5	5, 10	The duration of the generated media in seconds.
aspect_ratio	string	No	1:1	1:1, 16:9, 9:16	The aspect ratio of the generated media.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Array of URLs to the generated content (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.has_nsfw_contents	array	Array of boolean values indicating NSFW detection for each output
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Parameter	Type	Required	Default	Description
id	string	Yes	-	Task ID

Result Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data	object	The prediction data object containing all details
data.id	string	Unique identifier for the prediction, the ID of the prediction to get
data.model	string	Model ID used for the prediction
data.outputs	string	Array of URLs to the generated content (empty when status is not completed).
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Kwaivgi Kling V1.6 I2V Standard Kwaivgi Kling V1.6 Multi I2V Standard