imagestringrequired
URL of the image to be used for the video
Kling V3 4K Image to Video
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kwaivgi/kling-video/v3/4k/image-to-videoKling V3 4K Image to Video by Kuaishou animates a start image, optionally toward an end image, into a 3-15 second native 4K video with optional native audio.
Try the model
Playground
Input
Text prompt for video generation. Either prompt or multi_prompt must be provided, but not both.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
URL of the image to be used for the video
This field is required.
Additional Settings More
Customize your input with more control.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
URL of the image to be used for the end of the video
The duration of the generated video in seconds Allowed values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
Whether to generate native audio for the video. Supports Chinese and English voice output. Other languages are automatically translated to English. For English speech, use lowercase letters; for acronyms or proper nouns, use uppercase.
The type of multi-shot video generation. 'intelligent' lets the model automatically determine shot structure. Allowed values: customize, intelligent.
List of prompts for multi-shot video generation. If provided, divides the video into multiple shots.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "image": "https://static.sandbase.ai/examples/edc32b1c-48f4-4712-aaf8-521e0bea4c85/input/ffa610b5-e951-42dd-9649-fb6c1183c9c6.png", "prompt": "The craftsman slowly examines the bowl, turning it gently in his weathered hands. His eyes reflect years of wisdom. Subtle smile forms on his face. Dust particles drift in warm light. Breathing motion, blinking eyes." }
Kling V3 4K Image to Video
Kling V3 4K image-to-video: image anchors the first frame, end_image optionally the last, with native audio and multi-shot control. Output is native 4K.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Up to 2,500 characters. |
image | image URL, required | — | First frame. JPEG, PNG, or WebP URL. |
end_image | image URL | — | Optional last frame. |
duration | 3–15 | 5 | Output length in seconds. |
generate_audio | boolean | true | Generate native audio with the clip. |
shot_type | customize / intelligent | customize | customize follows your multi_prompt shot list; intelligent lets the model plan the cuts. |
multi_prompt | object[] | — | Optional list of shots, each with its own prompt and duration. |
Billing
You pay $0.42 per output second, with or without audio.
| Output | Price |
|---|---|
| 3s | $1.26 |
| 5s (default) | $2.10 |
| 10s | $4.20 |
| 15s | $6.30 |
Failed runs are not charged.
Prompting
- Describe subject, action, camera move, and light in order.
- For several shots, use
multi_promptwith one entry per shot.
Limits
- Clips are 3–15 seconds.
Also on SandBase
Other Kling V3 4K endpoints and tiers: kwaivgi/kling-video/v3/4k/text-to-video, kwaivgi/kling-video/v3/standard/image-to-video, kwaivgi/kling-video/v3/pro/image-to-video.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "kwaivgi/kling-video/v3/4k/image-to-video",
"image": "https://static.sandbase.ai/examples/kwaivgi/mirrored/example_inputs/kling-v3/pro-i2v/start_image.png",
"prompt": "The craftsman slowly examines the bowl, turning it gently in his weathered hands. His eyes reflect years of wisdom. Subtle smile forms on his face. Dust particles drift in warm light. Breathing motion, blinking eyes.",
"duration": 12,
"shot_type": "customize",
"generate_audio": true
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
status=$(printf '%s' "$result" | jq -r .status)
case "$status" in completed|failed|timeout) break ;; esac
sleep 2
result=$(curl --fail-with-body --silent \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
"https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
promptstringrequired
Text prompt for video generation. Either prompt or multi_prompt must be provided, but not both.
durationinteger
The duration of the generated video in seconds
Default: 5
Possible values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
end_imagestring
URL of the image to be used for the end of the video
shot_typestring
The type of multi-shot video generation. 'intelligent' lets the model automatically determine shot structure.
Default: "customize"
Possible values: "customize", "intelligent"
multi_promptarray
List of prompts for multi-shot video generation. If provided, divides the video into multiple shots.
generate_audioboolean
Whether to generate native audio for the video. Supports Chinese and English voice output. Other languages are automatically translated to English. For English speech, use lowercase letters; for acronyms or proper nouns, use uppercase.
Default: true
{
"model": "kwaivgi/kling-video/v3/4k/image-to-video",
"image": "https://static.sandbase.ai/examples/kwaivgi/mirrored/example_inputs/kling-v3/pro-i2v/start_image.png",
"prompt": "The craftsman slowly examines the bowl, turning it gently in his weathered hands. His eyes reflect years of wisdom. Subtle smile forms on his face. Dust particles drift in warm light. Breathing motion, blinking eyes.",
"duration": 12,
"shot_type": "customize",
"generate_audio": true
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"poster": "https://static.sandbase.ai/examples/posters/d10e897bd0cdf909b44d.jpg",
"source": "Kling AI official schema mirror",
"source_url": "https://kling.ai/document-api/guides/get-started/overview",
"url": "https://static.sandbase.ai/examples/edc32b1c-48f4-4712-aaf8-521e0bea4c85/output/91ce0d60-daf0-4df4-9752-8e2977c519c0.mp4"
}
]