> ## Documentation Index
> Fetch the complete documentation index at: https://docs.laozhang.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# VEO Video Generation API (Custom API - Deprecated)

> AI video generation service based on VEO3 series models - Legacy custom API, not recommended

<Warning>
  **⚠️ This API is Deprecated, Not Recommended**

  The legacy VEO3 custom API is maintained for compatibility only and will not receive new features. The newer [Veo-3.1 API](/en/api-capabilities/veo/veo-31-overview) has also been affected by a legacy-route incident since May 14, 2026. Pause new VEO production integrations until recovery is announced on this site or in the console.

  If you need a currently available Veo 3.1 video route, use [Veo 3.1 Official API Forwarding](/en/api-capabilities/veo/official-forward).
</Warning>

<Info>
  **Base URL:** `https://api2.laozhang.ai`
  **API Version:** `v1`
  **Service Status:** Maintenance mode (Not recommended for new projects)
</Info>

## VEO vs Sora 2 Quick Comparison

<Warning>
  **Important Decision:** Choosing the right tool can save you up to **90%** in costs!
</Warning>

<CardGroup cols={2}>
  <Card title="VEO - Professional Quality First" icon="crown">
    **Price:** \$2-\$10/call

    **Core Advantages:**

    * 🎨 Supports up to 5 reference images
    * 🤖 AI-powered prompt enhancement
    * 👑 Professional-grade quality (Pro version)
    * 🎬 Frame-level precise control

    **Best For:**

    * Commercial advertising
    * Film post-production effects
    * Brand promotional videos
    * Multi-image reference needs
  </Card>

  <Card title="Sora 2 - Cost-Effective" icon="zap">
    **Price:** \$0.15/call (current route pricing)

    **Core Advantages:**

    * ⚡ Fast generation (2-3 mins)
    * 💰 Extremely low cost
    * 🎵 Audio-video sync
    * 🔥 Ultra-high stability

    **Best For:**

    * Social media content
    * Rapid testing and iteration
    * Batch video generation
    * Budget-conscious projects
  </Card>
</CardGroup>

<Tip>
  **Money-Saving Tip:** Test with Sora 2 (\$0.15) for 5-10 prompts first, then use VEO (\$2-\$10) for final production. Save **70-90%** on testing costs!

  [View Sora 2 Docs →](/en/api-capabilities/sora2/overview)
</Tip>

## Overview

VEO API provides powerful AI video generation capabilities, supporting 4 different VEO3 series models. The service uses asynchronous processing mode to ensure efficient handling of video generation requests.

## Core Features

<CardGroup cols={2}>
  <Card title="Async Processing" icon="clock">
    Instant response after task submission, retrieve results via polling
  </Card>

  <Card title="Multi-Model Support" icon="layers">
    4 VEO3 models for different needs
  </Card>

  <Card title="Image Reference" icon="image">
    Supports multiple reference images for generation
  </Card>

  <Card title="Prompt Enhancement" icon="sparkles">
    AI optimizes prompts for better results
  </Card>

  <Card title="Pay on Success" icon="badge-dollar-sign">
    Only charged for successfully generated videos
  </Card>

  <Card title="High-Quality Output" icon="star">
    Supports HD video generation, 10-15 seconds duration
  </Card>
</CardGroup>

## Workflow

<Steps>
  <Step title="Submit Task">
    Call submit endpoint with text description and parameters
  </Step>

  <Step title="Get Task ID">
    System returns unique task ID
  </Step>

  <Step title="Poll Status">
    Use task ID to query processing progress
  </Step>

  <Step title="Get Result">
    Obtain video URL after task completion
  </Step>
</Steps>

## Supported Models

| Model             | Price   | Features                                        | Generation Time |
| ----------------- | ------- | ----------------------------------------------- | --------------- |
| `veo3`            | \$2.00  | Standard version, excellent overall performance | 3-8 minutes     |
| `veo3-fast`       | \$2.00  | Fast version, audio support                     | 1-3 minutes     |
| `veo3-pro`        | \$10.00 | Professional version, exceptional quality       | 5-15 minutes    |
| `veo3-pro-frames` | \$10.00 | Pro version + frame control                     | 5-15 minutes    |

## Getting Started

<Card title="Get API Key" icon="key" href="mailto:hi@laozhang.ai">
  Contact **[hi@laozhang.ai](mailto:hi@laozhang.ai)** to get API key
</Card>

## Related Links

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="/en/api-capabilities/veo/quick-start">
    Learn how to get started quickly
  </Card>

  <Card title="API Reference" icon="book" href="/en/api-capabilities/veo/api-reference">
    View detailed API documentation
  </Card>

  <Card title="Code Examples" icon="code" href="/en/api-capabilities/veo/examples">
    View examples in various programming languages
  </Card>

  <Card title="Best Practices" icon="lightbulb" href="/en/api-capabilities/veo/best-practices">
    Learn how to achieve best generation results
  </Card>
</CardGroup>