> ## 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.

# Models and Pricing (Outdated Legacy Route)

> Legacy Sora 2 route models and pricing for historical troubleshooting only; use Sora Official API Forwarding for current video generation.

<Warning>
  This is legacy Sora2 route documentation and is now outdated. Use [Sora Official API Forwarding](/en/api-capabilities/sora2/official-forward) for the currently available video route.
</Warning>

## Model Overview

Sora 2 provides stable video generation models, distinguished by **model name** for portrait and landscape orientations.

<Note>
  **Model Update Notice**

  **15-second versions** are now available, offering longer video generation duration!

  Due to official OpenAI computing power limitations, -hd (high definition) versions are temporarily unavailable and will be relaunched when resources become sufficient.
</Note>

## Available Models

<CardGroup cols={2}>
  <Card title="sora_video2" icon="smartphone">
    **Portrait Mode - 10s**

    * Resolution: 704 × 1280
    * Duration: 10 seconds
    * Price: \$0.15/call
    * Stability: ⭐⭐⭐⭐⭐ Extremely High
  </Card>

  <Card title="sora_video2-landscape" icon="tv">
    **Landscape Mode - 10s**

    * Resolution: 1280 × 704
    * Duration: 10 seconds
    * Price: \$0.15/call
    * Stability: ⭐⭐⭐⭐⭐ Extremely High
  </Card>

  <Card title="sora_video2-15s" icon="smartphone">
    **Portrait Mode - 15s** ⭐

    * Resolution: 704 × 1280
    * Duration: 15 seconds
    * Price: \$0.15/call
    * Stability: ⭐⭐⭐⭐⭐ Extremely High
  </Card>

  <Card title="sora_video2-landscape-15s" icon="tv">
    **Landscape Mode - 15s** ⭐

    * Resolution: 1280 × 704
    * Duration: 15 seconds
    * Price: \$0.15/call
    * Stability: ⭐⭐⭐⭐⭐ Extremely High
  </Card>

  <Card title="sora-2-pro" icon="sparkles">
    **HD Mode - 15s** ✨

    * Resolution: 1024 × 1792 (HD)
    * Duration: 15 seconds
    * Price: \$0.8/call
    * Stability: ⭐⭐⭐ Moderate
    * Generation time: \~10 minutes
    * **Async API only**
  </Card>

  <Card title="sora-2-character" icon="user-plus">
    **Character Creation** 🆕

    * Extract characters from videos
    * Reuse via @username
    * Price: \$0.01/call
    * [View Character Documentation](/en/api-capabilities/sora2/character)
  </Card>
</CardGroup>

## Pricing Details

### Billing Method

<Info>
  **Per-call Billing**

  Charges are based on console order status and the returned generation result.
</Info>

### Price Comparison

| Model                                 | Duration | Unit Price  |
| ------------------------------------- | -------- | ----------- |
| Portrait/Landscape                    | 10s      | \$0.15/call |
| Portrait/Landscape - 15s              | 15s      | \$0.15/call |
| HD (sora-2-pro)                       | 15s      | \$0.8/call  |
| Character Creation (sora-2-character) | -        | \$0.01/call |

<Note>
  **Official Comparison**

  OpenAI official has launched `sora-2` and `sora-2-pro` models, but:

  * Expensive pricing
  * Rate limits
  * Requires invitation code
  * Generated videos have watermarks

  The advantages of choosing laozhang.ai are obvious!
</Note>

## Cost Optimization Recommendations

<AccordionGroup>
  <Accordion title="All models have extremely high stability" icon="smartphone">
    Whether 10s or 15s, portrait or landscape, all models have very good stability. You can freely choose based on your needs and display scenarios without worrying about retry issues.
  </Accordion>

  <Accordion title="Batch generation optimization" icon="list">
    * Set reasonable timeout (recommended 5 minutes)
    * Download videos promptly to avoid expiration (storage validity 1 day)
    * No charge for failures, retry with confidence
  </Accordion>
</AccordionGroup>

## Video Specifications

### Technical Parameters

| Parameter          | Value    |
| ------------------ | -------- |
| **Video Encoding** | H.264    |
| **Audio Encoding** | AAC      |
| **Frame Rate**     | 24 fps   |
| **Bitrate**        | Adaptive |
| **Format**         | MP4      |
| **Watermark**      | None     |

### Storage Information

<Warning>
  **Important Notice**

  * Videos are returned through temporary CDN links
  * Storage validity: **Only 1 day**
  * Please **download immediately** after generation and save locally
  * Links will expire after 1 day
</Warning>

## Model Selection Recommendations

<Steps>
  <Step title="Determine Duration">
    Choose based on content needs:

    * Quick previews, short content → Choose 10s version (\$0.15/call)
    * Full narratives, more details → Choose 15s version (\$0.15/call)
    * HD quality requirement → Choose sora-2-pro (\$0.8/call, [Async API only](/en/api-capabilities/sora2/async-api))
  </Step>

  <Step title="Determine Orientation">
    Choose based on video display scenario:

    * Mobile short videos, social media portrait display → Choose portrait version
    * Landscape display, widescreen content, computer playback → Choose landscape version
  </Step>

  <Step title="Stability Guarantee">
    All models have extremely high stability, no need to worry about failure retry issues, feel free to choose any combination.
  </Step>
</Steps>

## Usage Examples

### Choose Model Based on Scenario

```python theme={null}
# Portrait video - 10s - mobile short videos, social media
model = "sora_video2"

# Landscape video - 10s - widescreen display, computer playback
model = "sora_video2-landscape"

# Portrait video - 15s - longer story narratives
model = "sora_video2-15s"

# Landscape video - 15s - more complete content presentation
model = "sora_video2-landscape-15s"
```

## FAQ

<AccordionGroup>
  <Accordion title="sora-2-pro HD Model" icon="circle-question-mark">
    **sora-2-pro** is our HD model:

    **Advantages:**

    * Higher resolution: 1024 × 1792 (HD 1080P)
    * 15 seconds duration
    * Better image quality

    **Notes:**

    * Price: \$0.8/call
    * Generation time: \~10 minutes
    * **Async API only** (due to longer generation time)
    * Recommend testing with base models first

    See [Async API Documentation](/en/api-capabilities/sora2/async-api)

    **Base models (sora\_video2 series) have extremely high stability and can meet most use cases.**
  </Accordion>

  <Accordion title="How should I confirm actual charges?" icon="wallet">
    Page prices are USD references. Actual charges are based on the console bill:

    * 10s/15s videos: \$0.15/call
    * HD video: \$0.8/call

    See [Billing Console](https://api2.laozhang.ai)
  </Accordion>

  <Accordion title="How are failed generations billed?" icon="ban">
    No. Under per-call billing mode, charges are based on console order status and the returned generation result.
  </Accordion>
</AccordionGroup>

## Next Steps

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="/en/api-capabilities/sora2/quick-start">
    View example code and usage methods
  </Card>

  <Card title="More Examples" icon="code" href="/en/api-capabilities/sora2/examples">
    View application examples for various scenarios
  </Card>
</CardGroup>