# Wan | v2.2 A14B | Text to Video | Turbo

Wan 2.2 a14b Text to Video Turbo transforms plain text descriptions into dynamic short videos. It creates realistic motion and cinematic visuals directly from text prompts.

## API Information

- **Model Slug:** wan-v2-2-a14b-text-to-video-turbo
- **Branded URL:** https://www.eachlabs.ai/alibaba/wan-v2-2/wan-v2-2-a14b-text-to-video-turbo
- **Provider:** Alibaba
- **Category:** Text to Video
- **Output Type:** video
- **Status:** active
- **Base Cost:** $0.05–$0.10 per second, depending on resolution
- **Estimated Processing Time:** 60 seconds
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/wan-v2-2-a14b-text-to-video-turbo

## Pricing

- **Charge Type:** dynamic
- **Estimate:** $0.05–$0.10 per second, depending on resolution
- **Pricing Details:** 480p: $0.05
- **Pricing Details:** 580p: $0.075
- **Pricing Details:** default: $0.1

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| prompt | string | Yes | - | - | Text prompt describing the desired video content. Supports Chinese and English. Max 800 characters. |
| aspect_ratio | string | No | 16:9 | 16:9, 9:16, 1:1 | Video aspect ratio. |
| resolution | string | No | 720p | 480p, 720p | Video output resolution. 480p: lower resolution, faster generation. 720p: higher quality output (default). |
| negative_prompt | string | No | - | - | Text describing content to avoid in the generated video. Max 500 characters. |
| enable_prompt_expansion | boolean | No | false | - | Enable LLM-based prompt rewriting for better video quality. Default: false. |
| seed | integer | No | - | 0–2147483647 | Random seed for reproducibility. Range: 0-2147483647. If not provided, a random seed is chosen. |

## Example Request

```bash
curl -X POST https://api.eachlabs.ai/v1/prediction/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "wan-v2-2-a14b-text-to-video-turbo",
  "input": {
    "prompt": "A hero bursts through a metal door, sprinting forward as a massive explosion erupts behind him, fire and debris blasting outward. The camera follows in dynamic motion, showing dust and sparks flying as the blast lights up the scene. In slow motion, the hero dives forward while the fiery glow illuminates his silhouette, creating an intense cinematic escape moment."
  }
}'
```

## Output Schema

Response returned by `GET /v1/prediction/{id}` when the job completes:

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "string (URL of generated video)",
  "metrics": {
    "predict_time": "number (seconds)"
  }
}
```

## Polling

```bash
curl https://api.eachlabs.ai/v1/prediction/{PREDICTION_ID} \
  -H "Authorization: Bearer YOUR_API_KEY"
```

| Status | Meaning |
|--------|---------|
| `processing` | Still running — poll again |
| `success` | Done — read `output` |
| `error` | Failed — read `message` / `details` |

## Webhook (alternative to polling)

Pass `"webhook_url": "https://your.host/path"` in the create request. Eachlabs POSTs this payload when the job ends:

```json
{
  "exec_id": "prediction-uuid",
  "status": "succeeded",
  "output": "https://...",
  "error": ""
}
```

`status` is `"succeeded"` or `"failed"`. `exec_id` equals the `predictionID` from create. Return 2xx within 30 seconds.

## Errors

Error body: `{ "status": "error", "message": "...", "details": "..." }`

| Code | Meaning |
|------|---------|
| `400` | Invalid input |
| `401` | Missing / invalid `Authorization` bearer token |
| `404` | Unknown model or prediction id |
| `429` | Rate limit — 100 creates / min, 10 concurrent per key |
| `5xx` | Retry with backoff |

## Overview

**wan-v2-2-a14b-text-to-video-turbo — Text to Video AI Model**

Developed by Alibaba as part of the **wan-v2.2** family, **wan-v2-2-a14b-text-to-video-turbo** transforms plain text prompts into dynamic short videos with realistic motion and cinematic visuals, enabling creators to produce high-quality clips without complex setups. This 14B parameter turbo variant stands out for its optimized speed and efficiency, delivering film-grade outputs ideal for rapid prototyping in text-to-video workflows. As a leading **Alibaba text-to-video** solution, it supports developers seeking a **text-to-video AI model** with turbo-fast inference for short-form content like social media reels or ads.

## Usage Notes

- API Base URL: `https://api.eachlabs.ai/v1`
- Authentication: send `Authorization: Bearer YOUR_API_KEY`. Generate a key from the Eachlabs dashboard at https://www.eachlabs.ai/dashboard/api-keys.
- File-typed parameters (`*_url`, `image_url`, `video_url`, `audio_url`, etc.) accept publicly-reachable HTTPS URLs only. Upload your asset first (GCS / S3 / your CDN) and pass the resulting URL. Data-URIs and localhost URLs are rejected.
- For structured parameters (arrays / objects) send real JSON values, not stringified payloads.
- Monetary values are reported in USD; per-token / per-megapixel rates may be billed in micro-cents internally.
- Prefer `webhook_url` over polling for long-running predictions — see the Webhook Callback section.