> ## Documentation Index
> Fetch the complete documentation index at: https://runcrate.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Kling Video Generation API
> Generate AI videos with Kling v3 — text-to-video, motion control, avatar generation, and lip sync through a single API.
export const RuncrateStyles = () => {
if (typeof document !== 'undefined' && !document.getElementById('runcrate-overrides')) {
const s = document.createElement('style');
s.id = 'runcrate-overrides';
s.textContent = `
/* Match Runcrate's rounding scale (--radius: 0.75rem) */
.rounded-sm { border-radius: 0.5rem !important; } /* 8px */
.rounded-md { border-radius: 0.625rem !important; } /* 10px */
.rounded-lg { border-radius: 0.75rem !important; } /* 12px */
.rounded-l-sm { border-top-left-radius: 0.5rem !important; border-bottom-left-radius: 0.5rem !important; }
.rounded-r-sm { border-top-right-radius: 0.5rem !important; border-bottom-right-radius: 0.5rem !important; }
.rounded-l-md { border-top-left-radius: 0.625rem !important; border-bottom-left-radius: 0.625rem !important; }
.rounded-r-md { border-top-right-radius: 0.625rem !important; border-bottom-right-radius: 0.625rem !important; }
.rounded-l-lg { border-top-left-radius: 0.75rem !important; border-bottom-left-radius: 0.75rem !important; }
.rounded-r-lg { border-top-right-radius: 0.75rem !important; border-bottom-right-radius: 0.75rem !important; }
/* Cards: never pure white in light mode */
.card { background-color: #fcfcfc !important; border-radius: 0.75rem !important; }
html.dark .card { background-color: #141414 !important; }
/* Docs hero box */
.rc-hero { background-color: #fcfcfc; border: 1px solid #e0e0e0; }
html.dark .rc-hero { background-color: #141414; border-color: #242424; }
html.dark .rc-hero h1 { color: #f5f5f5; }
/* Runcrate scrollbar — thin, transparent track, hide-until-hover thumb */
::-webkit-scrollbar { width: 6px; height: 6px; background-color: transparent; }
::-webkit-scrollbar-track { background-color: transparent; }
::-webkit-scrollbar-thumb { background-color: rgba(155, 155, 155, 0.5); border-radius: 10px; transition: opacity 0.3s ease; opacity: 0; }
::-webkit-scrollbar-thumb:hover { background-color: rgba(155, 155, 155, 0.7); }
*:hover::-webkit-scrollbar-thumb,
*:focus::-webkit-scrollbar-thumb,
*:active::-webkit-scrollbar-thumb { opacity: 1; }
* { scrollbar-width: thin; scrollbar-color: rgba(155, 155, 155, 0.5) transparent; }
`;
document.head.appendChild(s);
}
return null;
};
Kling covers the full video pipeline: text-to-video, motion control, avatar creation, and lip sync. All models accessible through the Runcrate video API.
## Available models
| Model | Type | Strengths |
| --------------------------- | ------------------- | ----------------------------------- |
| **Kling v3** | Text/Image-to-video | Best human motion, cinematic, 3-15s |
| **Kling v2.6** | Text/Image-to-video | Fast, cost-effective, 3-10s |
| **Kling v3 Motion Control** | Controlled video | Camera path and subject motion |
| **Kling Avatar v2** | Avatar | Talking head from a single photo |
| **Kling Lip Sync** | Audio-driven | Sync lips to any audio track |
***
## Text-to-video
```python Python theme={"theme":"github-dark"}
from runcrate import Runcrate
client = Runcrate(api_key="rc_live_YOUR_API_KEY")
job = client.models.generate_video_and_save(
"street-scene.mp4",
model="kuaishou/kling-v3-video",
prompt="Person walking through rainy Tokyo at night, neon reflections on wet pavement",
duration=8,
on_status=lambda j: print(f" {j.status}..."),
)
```
```typescript TypeScript theme={"theme":"github-dark"}
import Runcrate from '@runcrate/sdk';
const rc = new Runcrate({ apiKey: 'rc_live_YOUR_API_KEY' });
const job = await rc.models.generateVideo({
model: 'kuaishou/kling-v3-video',
prompt: 'Person walking through rainy Tokyo at night, neon reflections',
duration: 8,
});
let status = job;
while (status.status !== 'completed' && status.status !== 'failed') {
await new Promise(r => setTimeout(r, 5000));
status = await rc.models.getVideoStatus(job.id);
}
await Bun.write('street-scene.mp4', await rc.models.downloadVideo(job.id));
```
***
All examples below reuse the same `client`.
## Image-to-video
```python theme={"theme":"github-dark"}
client.models.generate_video_and_save(
"product-spin.mp4", model="kuaishou/kling-v3-video",
prompt="Slowly rotate the product 360 degrees on a turntable",
image="./product-photo.png", duration=6,
on_status=lambda j: print(f" {j.status}..."),
)
```
***
## Motion control
```python theme={"theme":"github-dark"}
client.models.generate_video_and_save(
"dolly-zoom.mp4", model="kuaishou/kling-v3-motion-control",
prompt="A castle on a hilltop at sunset, dramatic clouds",
camera_motion="dolly_zoom_in", duration=6,
on_status=lambda j: print(f" {j.status}..."),
)
```
***
## Avatar generation
Create a talking-head video from a single reference photo:
```python theme={"theme":"github-dark"}
client.models.generate_video_and_save(
"avatar-intro.mp4", model="kuaishou/kling-avatar-v2",
prompt="Person introduces themselves and waves, friendly, office background",
image="./headshot.jpg", duration=8,
on_status=lambda j: print(f" {j.status}..."),
)
```
***
## Lip sync
```python theme={"theme":"github-dark"}
client.models.generate_video_and_save(
"synced-speaker.mp4", model="kuaishou/kling-lip-sync",
prompt="Natural lip sync with subtle head movements",
image="./speaker.jpg", audio="./narration.mp3",
on_status=lambda j: print(f" {j.status}..."),
)
```
***
## Tips
* **v3 vs v2.6.** v3 has better quality and human motion. v2.6 is faster and cheaper.
* **Duration affects cost.** Start with 3-4s clips to test prompts.
* **Motion control.** `dolly_zoom_in`, `dolly_zoom_out`, `pan_left`, `pan_right`, `tilt_up`, `tilt_down`, `orbit`.