# KwaiVGI Kling O3 Standard Video Reference API

> Kling O3 Standard Video Reference by Kuaishou generates a new 720p shot that follows the style and camera motion of a reference video, optionally guided by reference images.

Source: https://www.sandbase.ai/models/kwaivgi/kling-video/o3/standard/video-to-video
API reference: https://www.sandbase.ai/models/kwaivgi/kling-video/o3/standard/video-to-video/docs

## Facts

- Provider: KwaiVGI
- Type: Video model
- Model ID: `kwaivgi/kling-video/o3/standard/video-to-video`
- Price: From $0.44 per run (30% off list price)
- Capabilities: video to video
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Unified Run API: `POST https://api.sandbase.ai/v1/run`

```bash
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/o3/standard/video-to-video",
  "video": "https://static.sandbase.ai/examples/kwaivgi/mirrored/example_inputs/kling-o3/standard-v2v-reference/video_reference.mp4",
  "images": [
    null
  ],
  "prompt": "Replace both character with @Element1 and @Element2",
  "duration": "5",
  "shot_type": "customize",
  "keep_audio": false,
  "aspect_ratio": "16:9"
}'
```

The response returns a run id; poll `GET https://api.sandbase.ai/v1/run/{id}` until the status is `completed` or `failed`.

## FAQ

### How do I call KwaiVGI Kling O3 Standard Video Reference through SandBase?

Create a SandBase API key, then send requests with the model ID "kwaivgi/kling-video/o3/standard/video-to-video" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### Do I need a separate KwaiVGI account?

No. One SandBase API key and balance gives you access to KwaiVGI Kling O3 Standard Video Reference and the other models in the catalog; you do not need to sign up with KwaiVGI separately.

## README

### Kling O3 Standard Video Reference

Kling O3 Standard video reference: generate new shots that follow the motion and camera language of a reference video, while the prompt and optional reference images set the new scene and look.

#### Fields

| Field | Type | Default | Notes |
|---|---|---|---|
| `prompt` | string, required | — | Up to 2,500 characters. |
| `images` | image URL[] | — | Reference images, referred to as @Image1, @Image2, … in the prompt. |
| `video` | video URL, required | — | Reference video, @Video1 in the prompt. |
| `duration` | 3–15 | — | Output length; omit to match the reference. |
| `shot_type` | string | `customize` | `customize` follows your `multi_prompt` shot list; `intelligent` lets the model plan the cuts. |
| `keep_audio` | boolean | true | Keep the source video's audio track. |
| `aspect_ratio` | `16:9` / `9:16` / `1:1` | `16:9` | Output frame shape. |

#### Billing

You pay $0.126 per output second. Without `duration` the output matches the reference length; the quote assumes 5 seconds.

| Output | Price |
|---|---|
| 3s | $0.378 |
| 5s | $0.63 |
| 10s | $1.26 |
| 15s | $1.89 |

Failed runs are not charged.

#### Prompting

- Describe the new scene; the reference video supplies motion and camera.

#### Limits

- Clips are 3–15 seconds.

#### Also on SandBase

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