Install the belt CLI skill: npx skills add belt-sh/cli

Pruna P-Video-Avatar

Generate talking head avatar videos from a single portrait image via inference.sh CLI.

P-Video-Avatar is the fastest and most cost-effective avatar video model available. Quality on par with Veo 3.0, 18x faster and 6x cheaper than alternatives like Fabric, OmniHuman, and HeyGen.

Quick Start

Requires inference.sh CLI (belt). Install instructions

belt login

Generate avatar from portrait + text script

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"voice_script": "Hello, welcome to our product demo!",

"voice": "Zephyr (Female)"

}'

## Full Workflow: Generate Portrait + Avatar Video

Use Pruna P-Image to generate the portrait, then P-Video-Avatar to animate it:

1. Generate a portrait image with P-Image

belt app run pruna/p-image --input '{

"prompt": "professional headshot portrait of a young woman, neutral background, looking at camera, studio lighting, photorealistic",

"aspect_ratio": "9:16"

}'

2. Use the generated image URL to create the avatar video

belt app run pruna/p-video-avatar --input '{

"image": "<image-url-from-step-1>",

"voice_script": "Hi there! Let me walk you through our latest features.",

"voice": "Zephyr (Female)",

"resolution": "720p"

}'

## Examples

### Text Script with Voice Selection

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"voice_script": "Welcome to our product walkthrough. Today I will show you three key features.",

"voice": "Puck (Male)",

"voice_language": "English (US)",

"resolution": "720p"

}'

### Audio-Driven Avatar

Provide your own audio file instead of using built-in TTS:

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"audio": "https://speech.mp3"

}'

When both `audio` and `voice_script` are provided, audio takes priority.

### 1080p with Custom Style

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"voice_script": "This is exciting news for our community!",

"voice": "Aoede (Female)",

"voice_prompt": "Enthusiastic and energetic tone, slightly faster pace",

"video_prompt": "The person is presenting on stage with dramatic lighting",

"resolution": "1080p"

}'

### Multilingual Content

Spanish

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"voice_script": "Bienvenidos a nuestra demostración de producto.",

"voice": "Kore (Female)",

"voice_language": "Spanish"

}'

Japanese

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"voice_script": "こんにちは、製品デモへようこそ。",

"voice": "Leda (Female)",

"voice_language": "Japanese"

}'

### Reproducible Generation

belt app run pruna/p-video-avatar --input '{

"image": "https://portrait.jpg",

"voice_script": "Consistent results every time.",

"seed": 42

}'

## Available Voices

**Female:** Zephyr, Kore, Leda, Aoede, Callirrhoe, Autonoe, Despina, Erinome, Laomedeia, Achernar, Gacrux, Pulcherrima, Vindemiatrix, Sulafat

**Male:** Puck, Charon, Fenrir, Orus, Enceladus, Iapetus, Umbriel, Algenib, Algieba, Schedar, Achird, Zubenelgenubi, Sadachbia, Sadaltager, Alnilam, Rasalgethi

## Supported Languages

English (US), English (UK), Spanish, French, German, Italian, Portuguese (Brazil), Japanese, Korean, Hindi

## Parameters

| Parameter | Type | Default | Description |
| --- | --- | --- | --- |
| `image` | file | required | Portrait image (jpg, jpeg, png, webp) |
| `voice_script` | string | - | Text for the person to say |
| `audio` | file | - | Audio file (overrides voice_script) |
| `voice` | string | "Zephyr (Female)" | Voice selection |
| `voice_language` | string | "English (US)" | Output language |
| `resolution` | string | "720p" | 720p or 1080p |
| `video_prompt` | string | "The person is talking." | Control avatar behavior and background |
| `voice_prompt` | string | "Say the following." | Control tone, pacing, emotion |
| `seed` | int | random | Reproducible generation |
| `disable_safety_filter` | bool | true | Disable content filter |
| `disable_prompt_upsampling` | bool | false | Skip prompt enhancement |

## Pricing

| Resolution | Price |
| --- | --- |
| 720p | $0.025 per second of output video |
| 1080p | $0.045 per second of output video |

Example: 30-second 720p video = $0.75

### Free Launch Weekend

**P-Video-Avatar is completely free from Thursday May 1, 2026 4:00 PM CET through Sunday May 4, 2026 11:59 PM CET.** All costs are on us during this window — no billing, no limits on resolution.

## Competitive Advantage

| Feature | P-Video-Avatar | Fabric 1.0 | OmniHuman 1.5 | HeyGen Avatar 4 |
| --- | --- | --- | --- | --- |
| Speed (per sec of video) | ~1.83s/s | ~34s/s (18x slower) | ~28s/s (15x slower) | ~26s/s (14x slower) |
| Cost per second | $0.025 | $0.14 (5.6x more) | $0.16 (6.4x more) | $0.075 (3x more) |
| Built-in TTS | Yes | Yes | No | Yes |
| Dynamic Background | Yes | Yes | No | Yes |
| 1080p Support | Yes | No | No | Yes |

## Use Cases

- **Marketing**: Product demos, UGC-style ads with AI presenters

- **Education**: Course videos, explainers, tutoring content

- **Localization**: Dub content across 10 languages from one image

- **Social Media**: Consistent virtual influencer content

- **Corporate**: Training, onboarding, announcements

- **Gaming**: Character avatars, NPC dialogue videos

- **Customer Support**: Personalized video responses

## Tips

- Use high-quality portrait photos (front-facing, good lighting)

- The output video aspect ratio matches the input image

- Use `video_prompt` to control dynamic backgrounds and body language

- Use `voice_prompt` to control speaking style, emotion, and pacing

- Keep videos under 3 minutes for best visual consistency

- Generate portraits with `pruna/p-image` using aspect ratio `9:16` for vertical avatar videos

## Related Pruna Models

Generate portrait images

belt app run pruna/p-image --input '{"prompt": "professional headshot portrait"}'

General video generation

belt app run pruna/p-video --input '{"prompt": "cinematic scene"}'

Image editing

belt app run pruna/p-image-edit --input '{"prompt": "change background", "image": "https://photo.jpg"}'

## Related Skills

Full platform skill (all apps)

npx skills add inference-sh/skills@infsh-cli

Pruna video generation

npx skills add inference-sh/skills@p-video

Pruna image generation

npx skills add inference-sh/skills@p-image

All video generation models

npx skills add inference-sh/skills@ai-video-generation

Image generation (for creating portraits)

npx skills add inference-sh/skills@ai-image-generation