# Kling v2.6 (`kling_v2_6`)

> Pro tier with improved motion consistency.

- Capability: Video (tool `video`) — Text to video, Image to video
- Price: from $0.56 per run (1 credit = $0.01). Exact price for a request: POST https://api.varg.ai/v2/estimate
- Typical time: ~3 min
- JSON Schema: https://api.varg.ai/v2/tools/video?model=kling_v2_6 (public, no key)
- Try it: https://varg.ai/dashboard/tools/playground?model=kling_v2_6

## Call it

REST: `POST https://api.varg.ai/v2/tools/video/call` with `Authorization: Bearer $VARG_API_KEY` (create a key at https://varg.ai/dashboard/api).
It answers `202` with a job right away. Poll `GET /v2/jobs/{id}` until `status` is `completed`, then read `output.outputs[0].url` — or pass `options.webhook_url` and get the finished job POSTed to you.

```bash
curl -X POST https://api.varg.ai/v2/tools/video/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling_v2_6",
  "prompt": "ocean waves crashing on rocky coast, aerial drone shot",
  "duration": 10
}'
```

MCP: the varg server `https://mcp.varg.ai/mcp` (OAuth sign-in, no key) runs it with `call_tool`:

```json
{
  "tool": "video",
  "input": {
    "model": "kling_v2_6",
    "prompt": "ocean waves crashing on rocky coast, aerial drone shot",
    "duration": 10
  },
  "wait": true
}
```

## Inputs

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `model` | string | yes | — | `kling_v2_6` or a route key below | Which model runs the job. |
| `prompt` | string | no | — | — | — |
| `files` | array of { url } | no | — | — | — |
| `aspect_ratio` | string | no | — | e.g. 16:9 \| 9:16 \| 1:1 \| 4:3 \| 3:4 \| 21:9 \| auto | — |
| `resolution` | string | no | — | 480p \| 720p \| 1080p \| 4k | Quality tier. Not supported by this model — ignored if sent. |
| `audio` | boolean | no | — | — | Set true to generate the video with a native audio track. |
| `duration` | integer | no | — | 5–10 | Length in seconds. Supported by this model's routes: fal: 5, 10. A non-numeric value such as "auto" is routed to a route whose schema accepts it; when none does, the request is rejected. |

Media inputs are URLs. Upload a local file first with `POST /v2/files` and pass the returned URL.

## Provider options

Optional, per provider, under `provider_options.<provider>`. Only the options of the provider that runs the job apply — pin a route to choose it.

### provider_options.fal

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `prompt` | string | no | — | — | — |
| `negative_prompt` | string | no | — | — | — |
| `voice_ids` | array of URL strings | no | — | — | — |
| `duration` | string | no | — | 5 \| 10 | — |
| `cfg_scale` | number | no | — | 0–1 | The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt. |
| `aspect_ratio` | string | no | — | 16:9 \| 9:16 \| 1:1 | — |
| `generate_audio` | boolean | no | — | — | Whether to generate native audio for the video. |
| `end_image_url` | string (URL) | no | — | — | — |
| `start_image_url` | string (URL) | no | — | — | URL of the image to be used for the video |

## Routes

`"model": "kling_v2_6"` picks a route automatically (priority order, then the inputs you send). To pin one, pass its key as `model`.

| model key | provider | modality | price from | typical time |
|---|---|---|---|---|
| `fal:kling_v2.6/text_to_video` | fal | text-to-video | $0.56 | ~3 min |
| `fal:kling_v2.6/image_to_video` | fal | image-to-video | $0.56 | ~3 min |

## Example output

- video/mp4: https://su.varg.ai/varg/1775757847179-r0bqgrvyem.mp4

---

Catalog version 2026-11-11T12:59:09.901887+00:00. All models: https://varg.ai/models/llms.txt