# Wan 2.7 I2V

> Alibaba Wan 2.7 image-to-video model. Animates a first frame (and optional last frame or continuation clip) with audio synchronization, up to 15 seconds, at 720p or 1080p.

- **Provider**: replicate
- **Model ID**: wan-video/wan-2.7-i2v
- **Category**: video_generation
- **Credits**: 1740 per request
- **Pricing Type**: input_based

## API Endpoint

Base URL: https://api.core.today/v1

### Create Prediction
POST /predictions

### Get Status
GET /predictions/{job_id}

### Cancel
DELETE /predictions/{job_id}

## Authentication

Header: `X-API-Key: YOUR_API_KEY`

## Input Parameters

- `duration` (integer, optional): Duration of the generated video in seconds (Default: `5`; Range: min: 2, max: 15)
- `seed` (integer, optional): Random seed for reproducible generation. Range: 0-2147483647
- `negative_prompt` (string, optional): Negative prompt — describes content that should not appear in the video (Default: ``)
- `last_frame` (string, optional): Last frame image for first-and-last-frame video generation (jpg/png/bmp/webp, ≤20MB). Requires first_frame.
- `audio` (string, optional): Audio file (wav/mp3, 3-30s, ≤15MB) for voice/music synchronization. If not provided, the model auto-generates matching audio.
- `prompt` (string, optional): Text prompt for video generation (Default: ``)
- `first_clip` (string, optional): Video clip to continue from (mp4/mov, 2-10s, ≤100MB). Cannot be combined with first_frame.
- `resolution` (string, optional): Output video resolution (Default: `1080p`; Options: `720p`, `1080p`)
- `first_frame` (string, optional): First frame image to animate into video (jpg/png/bmp/webp, ≤20MB)
- `enable_prompt_expansion` (boolean, optional): Automatically expand and optimize the prompt for better results. Improves quality for short prompts but increases latency. (Default: `True`)

## Example Request

```json
{
  "model": "wan-video/wan-2.7-i2v",
  "input": {
    "prompt": "your prompt here"
  }
}
```

## Response Format

```json
{
  "job_id": "abc123",
  "status": "pending",
  "provider": "replicate",
  "model": "black-forest-labs/flux-schnell",
  "created_at": "2026-01-01T00:00:00Z",
  "result": null,
  "error": null
}
```

Status values: `pending`, `processing`, `completed`, `failed`, `cancelled`

## Usage Flow

1. POST /predictions with model and input → receive job_id
2. Poll GET /predictions/{job_id} until status is `completed` or `failed`
3. Result contains output URL(s) or data

## Output Type

url

## Tags

wan, alibaba, video-generation, image-to-video, audio-sync

## Documentation

https://replicate.com/wan-video/wan-2.7-i2v