# PixVerse V4 Text To Video Fast API

> نسخة أسرع من تحويل النص إلى فيديو في V4، بحد أقصى 720p ومن دون خيار للمدة

إصدار أسرع من نموذج V4 لتحويل النص إلى فيديو. يقبل `prompt` نصيًا ويوفر مخرجًا بدقة 360p أو 540p أو 720p، دون 1080p ودون إعداد `duration`. تُدعم خمس نسب عرض إلى ارتفاع من 16:9 إلى 9:16، إلى جانب `negative_prompt` و`seed` وإعداد `style` المسبق (anime, 3d_animation, clay, comic, cyberpunk). تقتصر الموجّهات على 2048 بايت UTF-8.

- Model id: `pixverse/v4/text-to-video/fast`
- Made by: PixVerse
- Category: Text to Video
- Output: video
- Price: from $0.30 / request (cheapest run $0.30 (300 API credits))
- Run: `POST https://api.doitong.ru/v1/run/pixverse/v4/text-to-video/fast`
- Quote: `POST https://api.doitong.ru/v1/quote/pixverse/v4/text-to-video/fast`
- Docs page: https://doitong.com/ar/developers/models/pixverse/v4/text-to-video/fast

## Pricing

Price: **from $0.30 / request** (the lowest tier; the quote prices your exact input). Billed once per request.

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

- When `resolution` = 720p: $0.40 (400 API credits) / request
- When `resolution` = 1080p: $0.80 (800 API credits) / request

The full example input below costs $0.40 = 400 API credits (1 request × 400 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/pixverse/v4/text-to-video/fast` 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 |  |  | موجّه لتوليد فيديو بحد لحجم النص بالبايت: قد يتجاوز النص القصير بصريًا الحد عند احتوائه على رموز تعبيرية أو أحرف ذات علامات تشكيل أو أحرف غير لاتينية تستغرق عدة بايتات لكل حرف. الحد الأقصى للطول المشفّر هو 2048 بايت باستخدام UTF-8؛ ولا يحدد عدد الأحرف ما إذا كان النص مناسبًا. |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | نسبة أبعاد فيديو المخرج. |
| `resolution` |  | enum (string) | no | `720p` | `360p`, `540p`, `720p` | دقة فيديو المخرج. |
| `negative_prompt` |  | string | no | `` |  | موجّه توليد سلبي بحد لطول النص بالبايت: قد يتجاوز النص القصير بصريًا الحد لأن الرموز التعبيرية والأحرف ذات علامات التشكيل والأحرف غير اللاتينية تشغل عدة بايتات. الحد الأقصى 2048 بايتًا محسوبًا بترميز UTF-8، وليس عدد الأحرف. |
| `style` |  | enum (string) \| null | no |  | `anime`, `3d_animation`, `clay`, `comic`, `cyberpunk` | النمط المطبّق على الفيديو المُولّد. |
| `seed` |  | integer \| null | no |  |  | بذرة لتوليد فيديو قابل للتكرار. تتطلب الإعادة الدقيقة في كل تشغيل عدم تغيير إصدار النموذج والموجّه والبذرة. |
| `enable_safety_checker` |  | boolean | no | `true` |  | يمكن تخفيف الفحص بضبط القيمة على false، شريطة أن يكون المستدعي مخولًا بذلك. |

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

## 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/pixverse/v4/text-to-video/fast?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"
  }'

# 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/pixverse/v4/text-to-video/fast?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"
  }),
});
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",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/pixverse/v4/text-to-video/fast", 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": "pixverse/v4/text-to-video/fast",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
      },
      "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": "pixverse/v4/text-to-video/fast",
  "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": 400,
    "usd": "0.40",
    "charged": 400,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "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
    }
  },
  "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} | الفيديو الذي أنشأه النموذج. |

## Related models

- [PixVerse V3.5 Text To Video](https://doitong.com/developers/models/pixverse/v3.5/text-to-video.md) (`pixverse/v3.5/text-to-video`): from $0.15 / run
- [PixVerse V3.5 Text To Video Fast](https://doitong.com/developers/models/pixverse/v3.5/text-to-video/fast.md) (`pixverse/v3.5/text-to-video/fast`): from $0.30 / request
- [PixVerse V4 Text To Video](https://doitong.com/developers/models/pixverse/v4/text-to-video.md) (`pixverse/v4/text-to-video`): from $0.15 / run
- [PixVerse Swap](https://doitong.com/developers/models/pixverse/swap.md) (`pixverse/swap`): from $0.15 / run
- [PixVerse V3.5 Effects](https://doitong.com/developers/models/pixverse/v3.5/effects.md) (`pixverse/v3.5/effects`): from $0.15 / run
- [PixVerse V3.5 Image To Video](https://doitong.com/developers/models/pixverse/v3.5/image-to-video.md) (`pixverse/v3.5/image-to-video`): from $0.15 / run
- [PixVerse V3.5 Image To Video Fast](https://doitong.com/developers/models/pixverse/v3.5/image-to-video/fast.md) (`pixverse/v3.5/image-to-video/fast`): from $0.30 / request
- [PixVerse V3.5 Transition](https://doitong.com/developers/models/pixverse/v3.5/transition.md) (`pixverse/v3.5/transition`): from $0.15 / run

## Links

- HTML page: https://doitong.com/developers/models/pixverse/v4/text-to-video/fast
- 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=pixverse/v4/text-to-video/fast
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/pixverse/v4/text-to-video/fast