videostringrequired
Video to edit (3-30s, min 700x700 px, up to 300 MB). The output keeps its length.
Kling V4 Video Edit
kwaivgi/kling-video/v4/video-editKling V4 Video Edit by Kuaishou edits a 3-30 second source video from a text instruction and optional reference images.
Try the model
Playground
Input
Edit instruction. Refer to the source video as @Video1 and reference images as @Image1, @Image2, ...
Video to edit (3-30s, min 700x700 px, up to 300 MB). The output keeps its length.
Additional Settings More
Customize your input with more control.
PNG, JPEG, WebP, or GIF · 20 MiB maximum each · up to 10
Optional reference images, referenced as @Image1, @Image2, ...
Output resolution. Allowed values: 720p, 1080p.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "prompt": "Change the time of day in @Video1 to a starry night with the boat glowing softly, keep the camera motion.", "video": "https://static.sandbase.ai/examples/c5782511-455d-4642-aed4-aee4d9a68521/input/cc801f7f-f034-4822-99db-04c72e2b9743.mp4" } - Open result ↗
Input
{ "prompt": "Restyle @Video1 as a hand-drawn watercolor animation, keep the vendor's motion and the flames.", "video": "https://static.sandbase.ai/examples/8bd56a37-82da-4689-bfeb-b3d6e6db43dd/input/0ff13888-7225-4b82-bbe3-0ddbcabe39d0.mp4" }
Kling V4 Video Edit
Kling V4 video edit changes a 3–30 second source video from a text instruction, with optional reference images. The output keeps the source length.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Edit instruction. Refer to the source as @Video1 and images as @Image1, … |
video | video URL, required | — | 3–30s, min 700×700 px, up to 300 MB. |
images | image URL[] | — | Up to 10 reference images. |
resolution | 720p / 1080p | 1080p | Output resolution. |
Billing
$0.094 (720p) or $0.141 (1080p) per second, counted on input plus output (2× the source length). Settlement uses the output length (it matches the source); the quote before submission assumes a 30 second source when the length cannot be read.
| Source | Price |
|---|---|
| 6s, 1080p | $1.692 |
| 10s, 720p | $1.88 |
| 30s, 1080p | $8.46 |
| Failed runs are not charged. |
Prompting
- State what to change and what to keep, e.g. "replace the jacket in @Video1 with the coat in @Image1".
Limits
- Source videos are 3–30 seconds.
Also on SandBase
Other Kling V4 endpoints: kwaivgi/kling-video/v4/text-to-video, kwaivgi/kling-video/v4/image-to-video, kwaivgi/kling-video/v4/reference-to-video, kwaivgi/kling-video/v4/video-edit.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "kwaivgi/kling-video/v4/video-edit",
"prompt": "Change the background to a tropical island at sunset.",
"resolution": "1080p"
}
SANDBASE_JSON
)
run_id=$(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
imagesarray
Optional reference images, referenced as @Image1, @Image2, ...
promptstringrequired
Edit instruction. Refer to the source video as @Video1 and reference images as @Image1, @Image2, ...
resolutionstring
Output resolution.
Default: "1080p"
Possible values: "720p", "1080p"
{
"model": "kwaivgi/kling-video/v4/video-edit",
"prompt": "Change the background to a tropical island at sunset.",
"resolution": "1080p"
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"url": "https://static.sandbase.ai/examples/c5782511-455d-4642-aed4-aee4d9a68521/output/e7edbd9a-0c29-4b45-8e1d-701fba8ef596.mp4"
}
]