# Alibaba Qwen Image 3.0 Pro Text-to-Image

Alibaba Qwen Image 3.0 Pro Text-to-Image creates high-resolution images from text prompts with optional negative prompts, sizing, and multi-image output.

## API Information

- **Model Slug:** alibaba-qwen-image-3-0-pro-text-to-image
- **Branded URL:** https://www.eachlabs.ai/alibaba/qwen-image-3-0/alibaba-qwen-image-3-0-pro-text-to-image
- **Provider:** Alibaba
- **Category:** Text to Image
- **Output Type:** array
- **Status:** active
- **Base Cost:** $0.075 per generation
- **Estimated Processing Time:** 60 seconds
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/alibaba-qwen-image-3-0-pro-text-to-image

## Pricing

- **Charge Type:** dynamic
- **Estimate:** $0.075 per generation
- **Pricing Details:** default: $0.075

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| prompt | string | Yes | - | - | Text instruction describing the desired image. Supports Chinese and English. Max 800 characters. |
| negative_prompt | string | No | - | - | Describes content to exclude from the image. Max 500 characters. |
| size | string | No | 2048*2048 | 2048*2048, 2688*1536, 1536*2688, 2368*1728, 1728*2368 | Output resolution as width*height. 2048*2048 (1:1), 2688*1536 (16:9), 1536*2688 (9:16), 2368*1728 (4:3), 1728*2368 (3:4). |
| n | integer | No | 1 | 1–6 | Number of images to generate. 1-6. |
| seed | integer | No | - | 0–2147483647 | Random seed for reproducible generation. Range: 0-2147483647. |
| prompt_extend | boolean | No | true | - | Enable LLM-based prompt rewriting for better results on simple prompts. Default: true. |

## 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": "alibaba-qwen-image-3-0-pro-text-to-image",
  "input": {
    "prompt": "A high-end luxury perfume campaign portrait. A striking woman with sleek, straight jet-black hair parted in the middle, bold defined eyebrows, glossy nude-brown lips, and radiant glowing skin, wearing gold hoop earrings and delicate ear cuffs and a sharp black blazer. She holds a transparent glass perfume bottle with a gold cap up near her chin, long black almond nails, gazing intensely at the camera. Soft clear blue-sky background, warm natural golden light, editorial beauty campaign aesthetic, close-up, photorealistic, ultra-detailed, 8k.  she has natural make up. she is charming so beautiful"
  }
}'
```

## Output Schema

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

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "array",
  "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 |

## 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.