# PixVerse Extend

> Run PixVerse Extend by pixverse online or via API. From $0.025 per video, no setup.

**URL:** https://inference.sh/apps/pixverse/extend
**Last updated:** 2026-08-04

---

PixVerse Extend — extend an existing video with AI-generated continuation. Supports 5s or 8s extensions at up to 1080p.

- app: `pixverse/extend`
- maker: [pixverse](https://inference.sh/apps/pixverse.md)
- category: [video](https://inference.sh/apps/category/video.md)
- tasks: [video extension](https://inference.sh/apps/tag/video-extension.md)
- price: $0.025–$0.115/video (360p–1080p, no audio/audio)
- runs via: api, javascript and python sdk, belt cli, mcp

## extend API Guide

### About
pixverse extend — extend an existing video with ai-generated continuation. supports 5s or 8s extensions at up to 1080p.

### 1. Calling the API

#### Install the Client

```bash
pip install inferencesh
```

#### Setup Your API Key
Set `INFERENCE_API_KEY` as an environment variable. Get your key from settings → api keys.

```bash
export INFERENCE_API_KEY="inf_your_key"
```

#### Run and Get Result

```python
import os
from inferencesh import inference

client = inference(api_key=os.environ["INFERENCE_API_KEY"])


result = client.run({
        "app": "pixverse/extend@329p8km1",
        "input": {
            "video": "https://example.com/file.png",
            "prompt": "prompt"
        }
    })

print(result["output"])
```

#### Stream Live Updates

```python
import os
from inferencesh import inference

client = inference(api_key=os.environ["INFERENCE_API_KEY"])


## stream=True yields updates as they arrive
for update in client.run({
        "app": "pixverse/extend@329p8km1",
        "input": {
            "video": "https://example.com/file.png",
            "prompt": "prompt"
        }
    }, stream=True):
    if update.get("progress"):
        print(f"progress: {update['progress']}%")
    if update.get("output"):
        print(f"output: {update['output']}")
```

### 2. Authentication
The API uses API keys for authentication. See the authentication docs for detailed setup instructions.

### 3. Files

#### Automatic Upload

```python
## local file paths are automatically uploaded
result = client.run({
    "app": "pixverse/extend@329p8km1",
    "input": {
        "image": "/path/to/local/image.png",  # detected & uploaded
        "audio": "https://example.com/audio.mp3",  # url passed through
    }
})
```

#### Manual Upload

```python
## upload and get a hosted URL
file = client.files.upload("/path/to/file.png")
print(file.uri)  # https://cloud.inference.sh/...
```

### 4. Schema

#### Input
- **video** (string) *required*: Source video to extend. MP4/MOV, max 50MB, max 1920px, max 30s.
- **prompt** (string) *required*: Prompt describing what should happen in the extended portion (max 2048 chars)
- **quality** (string): Output resolution
- **duration** (integer): Extension duration in seconds. 1080p supports only 5s.
- **negative_prompt** (string): What to avoid (max 2048 chars)
- **seed** (integer): Seed for reproducibility
- **motion_mode** (string): Motion intensity. Fast mode only available for 5s, not at 1080p.

#### Output
- **video** (string): Extended video file

## other video apps

- [H3 Max Styles](https://inference.sh/apps/falai/minimax-h3-max-styles.md): $0.08/sec (768P)
- [H3 Max Insert Video](https://inference.sh/apps/falai/minimax-h3-max-insert-video.md): $0.05/sec 480p, $0.06/sec 768p
- [H3 Max 3D to Video](https://inference.sh/apps/falai/minimax-h3-max-3d-to-video.md): $0.50/request + $0.05/sec (480P), $0.08/sec (768P), $0.16/sec (1080P) + $0.10/generated ref; 5s min
- [H3 Max Recast](https://inference.sh/apps/falai/minimax-h3-max-recast.md): $0.30/sec at 768P, $0.45/sec at 1080P
- [H3 Max Relight](https://inference.sh/apps/falai/minimax-h3-max-relight.md): $0.05/s 480P, $0.08/s 768P, $0.16/s 1080P, $0.32/s 2K; up to 15s/video

## faq

### how much does PixVerse Extend cost?

$0.025–$0.115/video (360p–1080p, no audio/audio). you pay per run from your inference shell credits. no subscription is required.

### how do I run PixVerse Extend via api?

call pixverse/extend with the javascript or python sdk, the rest api, or `belt app run pixverse/extend` from a terminal. the api reference on this page lists every input.

### who makes PixVerse Extend?

PixVerse Extend is made by pixverse and runs on inference shell. every pixverse app is listed at https://inference.sh/apps/pixverse.

### can my agent use PixVerse Extend?

yes. agents call it as a tool through the inference shell mcp server (https://api.inference.sh/mcp), the belt cli or the sdk, and pay per run like you do.

### what are the alternatives to PixVerse Extend?

other video apps on inference shell include H3 Max Styles, H3 Max Insert Video, H3 Max 3D to Video, H3 Max Recast. they run through the same api, so switching is a one-line change.