OpenAI Sora 2 | Text-To-Video With Synchronized Audio, Realistic Physics, Enhanced Steerability

Sora 2 Text-to-Video

Sora 2 Text-to-Video is OpenAI's text-to-video model purpose-built for scenes featuring multiple distinct characters simultaneously. Describe the scene in natural language, reference your pre-defined character IDs, and the model renders a cohesive, temporally consistent video where every character looks and moves exactly as intended — no manual compositing required.

Why Choose This?

True multi-character consistency Reference two or more character IDs in a single generation. Each character retains its unique appearance, proportions, and style throughout every frame.
Natural-language scene control Describe interactions, environments, and actions in plain text. The model understands spatial relationships and character dynamics to produce believable compositions.
Flexible aspect ratio support Choose between portrait (720×1280) and landscape (1280×720) orientations to match your target platform.
Scalable duration Generate clips from 4 seconds up to 20 seconds in fixed steps, giving you full control over pacing and output cost.
Production-ready output Delivers smooth, artifact-free motion suitable for marketing content, storytelling, game cinematics, and social media video.

Parameters

Parameter	Required	Description
prompt	Yes	Text description of the scene, characters, actions, and environment.
size	No	Output resolution: 720×1280 (portrait) or 1280×720 (landscape).
duration	No	Clip length in seconds. Options: 4, 8, 12, 16, 20.
characters	No	List of character IDs to include. Add one or more char_... identifiers.

How to Use

Write your prompt — describe what the characters are doing and where the scene takes place.
Select size — portrait (720×1280) for mobile/social, landscape (1280×720) for widescreen.
Set duration — choose 4, 8, 12, 16, or 20 seconds based on your scene length.
Add character IDs — click Add Item under the characters section to include each character by their unique identifier.
Submit — generate, preview, and download your video.

Pricing

Duration	Cost per Generation
4s	$0.40
8s	$0.80
12s	$1.20
16s	$1.60
20s	$2.00

Billing Rules

Rate: $0.10 per second
Duration options: 4, 8, 12, 16, or 20 seconds
Billing is based on the selected duration, not actual playback length

Best Use Cases

Brand & Marketing Videos — Feature multiple characters or spokespeople in a single scene without manual compositing.
Social Media Content — Produce portrait-format multi-character clips optimized for Reels, TikTok, and Shorts.
Game & IP Storytelling — Render in-world scenes with established characters maintaining consistent visual identity.
Educational & Explainer Content — Animate two or more characters interacting to illustrate concepts or narratives.
Advertising & Campaigns — Generate diverse cast scenarios rapidly for A/B testing creative variations.

Pro Tips

Be specific about character positions and actions in your prompt for better spatial composition.
Use portrait mode (720×1280) for mobile-first platforms and landscape (1280×720) for cinematic or desktop use.
Start with a 4-second generation to validate composition and character rendering before committing to a longer duration.
Ensure all referenced character IDs are valid and accessible in your account before submitting.

Notes

Character IDs must be created and saved in advance — this model references existing character profiles and does not create new definitions.
Only prompt is a required field; size, duration, and characters are optional.
Complex multi-character scenes benefit from concise, clearly structured prompts.

Related Models

Sora 2 Characters — Create and save reusable character IDs for use in this model.

OpenAI Sora 2 is a state-of-the-art text-to-video model with realistic visuals, accurate physics, synchronized audio, and strong steerability. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

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