Kling O3 4K Image to Video

Name: KwaiVGI Kling O3 4K Image to Video
Price: 1.47 USD
Availability: InStock
Author: KwaiVGI

30% OFFkwaivgi/kling-video/o3/4k/image-to-video

Kling O3 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

Open playground

Input

Prompt(string)

Text prompt for video generation. Either prompt or multi_prompt must be provided, but not both.

Image Url(string)

Upload

PNG, JPEG, WebP, or GIF · 20 MiB maximum

URL of the start frame image.

This field is required.

Additional Settings More

Customize your input with more control.

End Image Url(string)

Upload

PNG, JPEG, WebP, or GIF · 20 MiB maximum

URL of the end frame image (optional).

Duration(integer)

Video duration in seconds (3-15s). Allowed values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

Generate Audio(boolean)

Whether to generate native audio for the video.

Shot Type(string)

The type of multi-shot video generation. 'intelligent' lets the model automatically determine shot structure. Allowed values: customize, intelligent.

Multi Prompt(array)

List of prompts for multi-shot video generation.

30% OFF

Result

Example

What would you like to do next?
Open original

Examples

Select an example to load its inputs and result into the playground.

Input

{
  "image": "https://static.sandbase.ai/examples/1da1e017-a69d-43e2-bcf3-7ad0f703587d/input/45c64ba6-ca51-437c-ae18-1cb9202a0b6e.png",
  "prompt": "The character walks forward slowly, with the camera following from behind."
}

Open result ↗

Kling O3 4K Image to Video

Kling O3 4K image-to-video, native 4K output in one pass, without a separate upscale. image anchors the first frame and an optional end_image sets the last; the prompt directs action and camera over 3–15 seconds.

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	false	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 what moves, not what is already visible.
With two frames, describe the transition between them.

Limits

Clips are 3–15 seconds.

Also on SandBase

Other Kling O3 4K endpoints and tiers: kwaivgi/kling-video/o3/4k/text-to-video, kwaivgi/kling-video/o3/4k/reference-to-video, kwaivgi/kling-video/o3/4k/edit, kwaivgi/kling-video/o3/4k/video-to-video, kwaivgi/kling-video/o3/standard/image-to-video, kwaivgi/kling-video/o3/pro/image-to-video.

Start building

Send your first request

Submit this model through the SandBase Unified Run API.

Production API

Unified Run API endpoint

https://api.sandbase.ai/v1/run

Model ID

kwaivgi/kling-video/o3/4k/image-to-video

# 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 $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "kwaivgi/kling-video/o3/4k/image-to-video",
  "image": "https://static.sandbase.ai/examples/mirrored/0ff4703452ec-8ABMp4n9rh3kfD2Rq8fHd_start_frame.png",
  "prompt": "The character walks forward slowly, with the camera following from behind.",
  "duration": 10,
  "end_image": "https://static.sandbase.ai/examples/alibaba/qwen-image-edit-plus-lora-gallery/add-background/output_url_1.png",
  "shot_type": "customize",
  "generate_audio": false
}
SANDBASE_JSON
)
run_id=$(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.

API key environment variable

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.

Poll run status

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

`image`stringrequired

URL of the start frame image.

`prompt`stringrequired

Text prompt for video generation. Either prompt or multi_prompt must be provided, but not both.

`duration`integer

Video duration in seconds (3-15s).

Default: 5

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

`end_image`string

URL of the end frame image (optional).

`shot_type`string

The type of multi-shot video generation. 'intelligent' lets the model automatically determine shot structure.

Default: "customize"

Possible values: "customize", "intelligent"

`multi_prompt`array

List of prompts for multi-shot video generation.

`generate_audio`boolean

Whether to generate native audio for the video.

Default: false

Request body

{
  "model": "kwaivgi/kling-video/o3/4k/image-to-video",
  "image": "https://static.sandbase.ai/examples/mirrored/0ff4703452ec-8ABMp4n9rh3kfD2Rq8fHd_start_frame.png",
  "prompt": "The character walks forward slowly, with the camera following from behind.",
  "duration": 10,
  "end_image": "https://static.sandbase.ai/examples/alibaba/qwen-image-edit-plus-lora-gallery/add-background/output_url_1.png",
  "shot_type": "customize",
  "generate_audio": false
}

Output

A completed run exposes its result in output. The following is the model’s saved example, not a new generation.

Example output JSON

[
  {
    "poster": "https://static.sandbase.ai/examples/posters/d5c31361d3dbd34606cd.jpg",
    "source": "Kling AI official schema mirror",
    "source_url": "https://kling.ai/document-api/guides/get-started/overview",
    "url": "https://static.sandbase.ai/examples/1da1e017-a69d-43e2-bcf3-7ad0f703587d/output/87921ad4-9817-479e-82f1-82fcfda05b24.mp4"
  }
]

Kling O3 4K Image to Video

Playground

Examples

Kling O3 4K Image to Video

Fields

Billing

Prompting

Limits

Also on SandBase

Send your first request

2. Authentication

3. Queue

Submit a request

Fetch request status and result

4. Files

Hosted files

Uploading images

5. Schema

Input

imagestringrequired

promptstringrequired

durationinteger

end_imagestring

shot_typestring

multi_promptarray

generate_audioboolean

Output

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`image`stringrequired

`prompt`stringrequired

`duration`integer

`end_image`string

`shot_type`string

`multi_prompt`array

`generate_audio`boolean