# FLUX 3 Max Keyframes to Video API

> پرامپٹ اور فریم پوزیشنز پر منسلک زیادہ سے زیادہ 10 کی فریم تصاویر سے ویڈیو تخلیق کرتا ہے، اختیاری آڈیو کے ساتھ

ایسی ویڈیو تخلیق کرتا ہے جو ان کی فریمز کے درمیان حرکت کرتی ہے جنہیں آپ وقت میں پن کرتے ہیں۔ `keyframes` منفرد `frame_index` ویلیوز کے ساتھ 1 سے 10 تصاویر لیتا ہے، اور `prompt` حرکت کی وضاحت کرتا ہے۔ `duration` 5 سے 20 سیکنڈ تک ہے، `resolution` 720p یا 1080p ہے، اور `aspect_ratio` میں 21:9 سے 9:16 یا auto شامل ہے۔ `reasoning_level` (low یا high) اور `generate_audio` بھی دستیاب ہیں۔

- Model id: `blackforestlabs/flux-3-max/keyframes-to-video`
- Made by: Black Forest Labs
- Category: Image to Video
- Output: video
- Price: from $0.0425 / second (5 s ≈ $0.213) (cheapest run $0.213 (213 API credits))
- Run: `POST https://api.doitong.ru/v1/run/blackforestlabs/flux-3-max/keyframes-to-video`
- Quote: `POST https://api.doitong.ru/v1/quote/blackforestlabs/flux-3-max/keyframes-to-video`
- Docs page: https://doitong.com/ur/developers/models/blackforestlabs/flux-3-max/keyframes-to-video

## Pricing

Price: **from $0.0425 / second (5 s ≈ $0.213)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 20).

Price rules (the first rule that matches the input wins; a parameter you leave out counts as its default):

- When `resolution` = 1080p: $0.0725 (72.5 API credits) / second

The full example input below costs $0.425 = 425 API credits (5 s × 85 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/blackforestlabs/flux-3-max/keyframes-to-video` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | ≥ 1 characters | کی فریمز کے درمیان ویڈیو کی حرکت بیان کرنے والا متن۔ |
| `keyframes` |  | array of object {image_url, frame_index} | yes |  | 1 – 10 items | آؤٹ پٹ ویڈیو میں `frame_index` کے مطابق رکھی جانے والی کی فریم تصاویر؛ زیادہ سے زیادہ 10 فراہم کریں اور کوئی انڈیکس دہرائیں نہیں۔ |
| `keyframes[].image_url` |  | string (image URL) | yes |  |  | کی فریم تصویر کا URL؛ PNG، JPEG، یا WebP قبول کرتا ہے۔ |
| `keyframes[].frame_index` |  | integer | yes |  | ≥ 0 | کی فریم کی جگہ کے لیے ہر کی فریم کا الگ فریم انڈیکس استعمال ہوتا ہے، جس کی بالائی حد `duration * 24` ہے؛ آؤٹ پٹ 24 fps پر چلتا ہے۔ |
| `duration` |  | enum (integer) | no | `5` | `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15`, `16`, `17`, `18`, `19`, `20` | آؤٹ پٹ ویڈیو کی لمبائی، سیکنڈ میں۔ |
| `resolution` |  | enum (string) | no | `720p` | `720p`, `1080p` | آؤٹ پٹ ویڈیو کا ریزولوشن۔ |
| `reasoning_level` |  | enum (string) | no | `high` | `low`, `high` | استدلال کی کوشش تخلیق کی رفتار اور پرامپٹ سمجھنے کے لیے ہارنس کے کام کے درمیان توازن کو کنٹرول کرتی ہے: زیادہ کوشش میں زیادہ وقت لگتا ہے۔ |
| `aspect_ratio` |  | enum (string) | no | `auto` | `auto`, `21:9`, `2:1`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | تیار کردہ ویڈیو کا پہلو تناسب؛ `auto` پہلی تصویر سے مطابقت رکھتا ہے، جبکہ متنی پرامپٹ کی صورت میں 16:9 منتخب کرتا ہے۔ |
| `generate_audio` |  | boolean | no | `true` |  | کنٹرول کرتا ہے کہ ویڈیو میں تیار کردہ آڈیو شامل ہو یا نہیں۔ |
| `seed` |  | integer \| null | no |  |  | تخلیق کی سیڈ؛ نہ دی جائے تو بے ترتیب ویلیو استعمال ہوتی ہے۔ |

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "keyframes": [
    {
      "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
      "frame_index": 0
    }
  ]
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "keyframes": [
    {
      "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
      "frame_index": 0
    }
  ]
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/blackforestlabs/flux-3-max/keyframes-to-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
      {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "frame_index": 0
      }
    ]
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.ru/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/blackforestlabs/flux-3-max/keyframes-to-video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
      {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "frame_index": 0
      }
    ]
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
        {
            "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
            "frame_index": 0,
        },
    ],
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/blackforestlabs/flux-3-max/keyframes-to-video", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.ru/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "blackforestlabs/flux-3-max/keyframes-to-video",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
        "keyframes": [
          {
            "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
            "frame_index": 0
          }
        ]
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "blackforestlabs/flux-3-max/keyframes-to-video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 425,
    "usd": "0.425",
    "charged": 425,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
      {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "frame_index": 0
      }
    ]
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200,
      "width": 1024,
      "height": 768,
      "fps": 1.0,
      "duration": 5,
      "num_frames": 1
    },
    "seed": 42,
    "timings": {}
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size, width, height, fps, duration, num_frames} | ماڈل کی تیار کردہ ویڈیو۔ |
| `seed` | integer | تخلیق کے دوران استعمال ہونے والی سیڈ ویلیو۔ |
| `timings` | object | ٹائمنگ ڈیٹا، جس میں پرامپٹ کی توسیع، ڈی کوڈنگ اور اپ لوڈ شامل نہیں؛ `inference` صرف ماڈل کی ویڈیو ڈینوائزنگ کو سیکنڈ میں ناپتا ہے۔ |

## Related models

- [FLUX 3 Max Text to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/text-to-video.md) (`blackforestlabs/flux-3-max/text-to-video`): from $0.0425 / second of output video
- [FLUX 3 Max Image to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/image-to-video.md) (`blackforestlabs/flux-3-max/image-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Image to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/image-to-video.md) (`xai/grok-imagine-video/v1.5/image-to-video`): from $0.082 / second
- [Kling 3.0 Pro Image to Video](https://doitong.com/developers/models/kling-video/v3/pro/image-to-video.md) (`kling-video/v3/pro/image-to-video`): from $0.112 / second
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- [MiniMax H3 Image to Video](https://doitong.com/developers/models/minimax/h3/image-to-video.md) (`minimax/h3/image-to-video`): from $0.05 / second
- [Seedance 2.0 Fast Image to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/fast/image-to-video.md) (`bytedance/seedance-2.0/fast/image-to-video`): from $0.113 / second
- [Seedance 2.0 Image to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/image-to-video.md) (`bytedance/seedance-2.0/image-to-video`): from $0.141 / second

## Links

- HTML page: https://doitong.com/developers/models/blackforestlabs/flux-3-max/keyframes-to-video
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=blackforestlabs/flux-3-max/keyframes-to-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/blackforestlabs/flux-3-max/keyframes-to-video