Introduction
Sora 2 is a next-generation media generation model capable of producing richly detailed, dynamic video clips with perfectly synced audio. Developers can provide natural language prompts – and even images – to create original, high-quality video segments that align sound and visuals seamlessly.
The API is built on a multi-modal architecture that treats audio and video as co-dependent outputs, enabling truly immersive generated content.
How Sora 2 Achieves Perfect Sync
Multi-Modal Architecture
- Parallel pipelines: Sora 2 processes audio and video streams in tandem rather than sequentially.
- Shared temporal context: The system ensures both the waveform generator and the frame synthesis engine operate from the same timing blueprint.
- Visual motion and lip analysis: During generation, it evaluates facial movements and environmental cues to keep audio in lockstep with visual action.
Temporal Alignment Model
- Predictive sync: Before audio synthesis begins, Sora 2 generates a timeline that forecasts where each spoken word, sound effect, or musical beat should land in the visual sequence.
- Feedback-adjusted correction: The engine re-evaluates output mid-generation, dynamically stretching or compressing small time windows to correct any drift.
Features Relevant to Sync
Guest Mode
You can reference publicly authorized characters from Sora.com using the @id format. For example, @sama ensures consistency between recurring appearances and voice patterns.
Aspect Ratio Control
Switch between horizontal (landscape) and vertical (portrait) outputs without disrupting timing. This ensures that, regardless of format, the sync precision remains intact.
Output Quality Levels
Sora 2 comes in three main output settings:
- Standard: 10s, 720p, watermark-free.
- Pro: 15s, 1080p, watermark-free.
Different quality levels may marginally affect processing time, but the sync precision is preserved.
API Usage
Authentication and Tier Access
To use Sora 2, you must be on Tier 2 or above. A $10 top-up unlocks this tier.
Pricing per model:
- sora-2: $0.20
- sora-2-pro: $1.00
Sending Text to Video Requests
The API uses the v1/chat/completions endpoint. Prompts go under the content field.
Example text-to-video request:
{
"model": "sora-2",
"stream": true,
"messages": [
{
"role": "user",
"content": "A girl walking on the street."
}
]
}
Image to Video Pro Workflow
Pro tier supports combining text prompts with an image URL for richer, more context-aware outputs:
{
"model": "sora-2",
"stream": true,
"messages": [
{
"role": "user",
"content": [
{ "text": "A girl walking on the street.", "type": "text" },
{ "image_url": { "url": "https://juheapi.com/cdn/20250603/k0kVgLClcJyhH3Pybb5AInvsLptmQV.png" }, "type": "image_url" }
]
}
]
}
Best Practices for Perfect Sync
Write Detailed Prompts
Specify vocal tone, background sounds, timing cues, and any pauses or accelerations.
Use Pro for Complex Scenes
Higher resolutions and longer durations give the sync algorithms more data to work with.
Limitations and Workarounds
- Tier requirements: Only Tier 2+ have access.
- Content restrictions: Ensure your content complies with platform guidelines.
If you’re budget-conscious, prototype in Standard mode, then upgrade to Pro for final production.
Conclusion
Sora 2’s parallel multi-modal architecture and temporal adjustment systems allow developers to generate videos where visuals and audio feel naturally connected. By leveraging features like Guest Mode, aspect ratio control, and high-quality outputs, you can craft immersive clips tailored to your audience’s experience.
Check out Sora 2 here: https://wisdom-gate.juheapi.com/models/sora-2