# Kandinsky 6.0 Pro (`kandinsky_6`)

> Kandinsky 6.0 Pro by Kandinsky Lab. Open-weight text- and image-to-video with a synchronized audio track; 5-second clips, upscalable to 1080p or 4x.

- Capability: Video (tool `video`) — Text to video, Image to video
- Price: from $0.24 per run (1 credit = $0.01). Exact price for a request: POST https://api.varg.ai/v2/estimate
- Typical time: ~10 min
- JSON Schema: https://api.varg.ai/v2/tools/video?model=kandinsky_6 (public, no key)
- Try it: https://varg.ai/dashboard/tools/playground?model=kandinsky_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": "kandinsky_6",
  "prompt": "A street violinist plays under a bridge at night, rain on the cobblestones, the melody echoing."
}'
```

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

```json
{
  "tool": "video",
  "input": {
    "model": "kandinsky_6",
    "prompt": "A street violinist plays under a bridge at night, rain on the cobblestones, the melody echoing."
  },
  "wait": true
}
```

## Inputs

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `model` | string | yes | — | `kandinsky_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. Supported by this model: 480p, 1080p, 4k. Unsupported tiers fall back to the nearest available. |
| `audio` | boolean | no | — | — | Set true to generate the video with a native audio track. |
| `duration` | integer | no | — | 1–120 | Length in seconds. Not mapped by this model — ignored if sent. |

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 | — | — | The text prompt describing the video and its sound. |
| `sync_mode` | boolean | no | — | — | If `True`, the media will be returned as a data URI and the output data won't be available in the request history. |
| `aspect_ratio` | string | no | — | 16:9 \| 9:16 \| 1:1 \| 4:3 \| 3:4 | — |
| `generate_audio` | boolean | no | — | — | Whether to generate a synchronized audio track. |
| `guidance_scale` | number | no | — | 1–10 | Classifier-free guidance strength. |
| `upscale_factor` | number | no | — | — | — |
| `num_inference_steps` | integer | no | — | 8–50 | The number of denoising steps. |
| `enable_safety_checker` | boolean | no | — | — | Authorized callers may set false to request relaxed screening. |
| `enable_prompt_expansion` | boolean | no | — | — | Whether to rewrite the prompt into a detailed video+audio description with the model's own Qwen2.5-VL text encoder before generating. |
| `image_url` | string (URL) | no | — | — | The image used as the first frame of the video. |

## Routes

`"model": "kandinsky_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:fal-ai/kandinsky6-pro/text-to-video` | fal | text-to-video | $0.24 | ~10 min |
| `fal:fal-ai/kandinsky6-pro/image-to-video` | fal | image-to-video | $0.24 | ~10 min |

---

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