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Model Overview

Sora 2 provides stable video generation models, distinguished by model name for portrait and landscape orientations.
Model Update Notice15-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.

Available Models

sora_video2

Portrait Mode - 10s
  • Resolution: 704 × 1280
  • Duration: 10 seconds
  • Price: $0.15/call
  • Stability: ⭐⭐⭐⭐⭐ Extremely High

sora_video2-landscape

Landscape Mode - 10s
  • Resolution: 1280 × 704
  • Duration: 10 seconds
  • Price: $0.15/call
  • Stability: ⭐⭐⭐⭐⭐ Extremely High

sora_video2-15s

Portrait Mode - 15s
  • Resolution: 704 × 1280
  • Duration: 15 seconds
  • Price: $0.15/call
  • Stability: ⭐⭐⭐⭐⭐ Extremely High

sora_video2-landscape-15s

Landscape Mode - 15s
  • Resolution: 1280 × 704
  • Duration: 15 seconds
  • Price: $0.15/call
  • Stability: ⭐⭐⭐⭐⭐ Extremely High

Pricing Details

Billing Method

Per-call BillingCharges only when video is successfully generated, no charge for failures.

Price Comparison

ModelDurationUnit PriceDiscounted Price with $100 Top-up
Portrait/Landscape10s$0.15/call≈ ¥1.0/call
Portrait/Landscape - 15s15s$0.15/call≈ ¥1.7/call
Official ComparisonOpenAI 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!

Cost Optimization Recommendations

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.
  • Set reasonable timeout (recommended 5 minutes)
  • Download videos promptly to avoid expiration (storage validity 1 day)
  • No charge for failures, retry with confidence

Video Specifications

Technical Parameters

ParameterValue
Video EncodingH.264
Audio EncodingAAC
Frame Rate24 fps
BitrateAdaptive
FormatMP4
WatermarkNone

Storage Information

Important Notice
  • Videos stored on domestic CDN
  • Storage validity: Only 1 day
  • Please download immediately after generation and save locally
  • Links will expire after 1 day

Model Selection Recommendations

1

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)
2

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
3

Stability Guarantee

All models have extremely high stability, no need to worry about failure retry issues, feel free to choose any combination.

Usage Examples

Choose Model Based on Scenario

# 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

Due to official OpenAI computing power limitations, -hd (high definition) versions are temporarily unavailable and will be relaunched when resources become sufficient.The four currently available models (10s and 15s, portrait and landscape) all have extremely high stability and can meet most use cases.
Single top-up of $100 can enjoy discounted prices:
  • 10-second video approximately ¥1.0/call
  • 15-second video approximately ¥1.7/call
See Top-up Page
No. Under per-call billing mode, charges only when video is successfully generated.

Next Steps

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