Sora 2 API
廃止予定Sora 2 by OpenAI is a next-gen text-to-video model producing realistic video with synchronized audio, high controllability, and enhanced physical accuracy.
Sora 2 API 背景
概要
Sora 2 is OpenAI's advanced text-to-video and audio generation model, designed to convert natural language prompts into synchronized, high-fidelity video and audio outputs. Released on October 1, 2025, Sora 2 represents a significant leap in generative AI, offering enhanced realism, controllability, and multi-modal synthesis. The Sora 2 API enables developers and businesses to integrate state-of-the-art video and audio generation capabilities into their applications, supporting a wide range of creative and commercial use cases.
開発履歴
OpenAI initially introduced Sora as a text-to-video model, focusing on generating short video clips from textual prompts. With the release of Sora 2 in late 2025, the model expanded its capabilities to include synchronized audio generation, improved physical realism, and greater user control. The launch was accompanied by the Sora App, a social platform for generating, sharing, and remixing AI-generated videos, further demonstrating the model's versatility and real-world applicability.
主要な革新
- Integrated video and audio generation with precise synchronization
- Enhanced physical realism and object consistency in generated content
- Advanced user controllability over style, composition, and motion
Sora 2 API 技術仕様
アーキテクチャ
Sora 2 is built on a hybrid architecture combining Transformer and Diffusion models. The system processes user prompts through a recaptioning layer to enhance semantic alignment, encodes video as spatio-temporal patches in latent space, and employs a Transformer-based diffusion process for denoising and generation. The architecture includes dedicated modules for synchronized audio synthesis, user control signals, and physical consistency, as well as robust safety and content filtering layers. The Sora 2 API exposes these capabilities for seamless integration.
パラメータ
While the exact parameter count is undisclosed, Sora 2 is presumed to be a large-scale model, leveraging billions of parameters to achieve high-fidelity video and audio generation. The model scales efficiently due to its Transformer backbone and optimized attention mechanisms.
機能
- Generates high-quality, synchronized video and audio from text prompts
- Supports advanced user control over video style, motion, and composition
- Maintains physical realism and object consistency across frames
制限事項
- Currently optimized for short video clips (typically under one minute) and may face challenges with longer or higher-resolution outputs
- Complex multi-object interactions and fine-grained facial or body details may still present occasional inaccuracies
Sora 2 API 性能
強み
- Delivers industry-leading video and audio generation quality with strong semantic alignment to prompts
- Offers robust controllability and style diversity, enabling a wide range of creative outputs
実世界での有効性
In real-world deployments, the Sora 2 API demonstrates high reliability in generating visually coherent and physically plausible videos, complete with synchronized dialogue and sound effects. User feedback highlights the model's effectiveness for rapid content prototyping, pre-visualization, and social media engagement. The API's safety and content moderation features ensure compliance with legal and ethical standards, making it suitable for commercial applications.
Sora 2 API 使用場面
シナリオ
- You have a marketing team that needs to produce engaging short-form video content for social media campaigns. The Sora 2 API enables rapid generation of high-quality, stylized videos from simple text prompts, reducing production time and costs while allowing for creative experimentation and iteration.
- You are developing an educational platform that requires visualizations of complex scientific or historical concepts. By leveraging the Sora 2 API, you can transform textual descriptions into accurate, synchronized video and audio explanations, enhancing learner engagement and comprehension through dynamic visual storytelling.
- You operate a film or animation studio seeking to accelerate the pre-visualization process. The Sora 2 API allows your team to quickly prototype scenes, camera movements, and character actions based on script inputs, streamlining the creative workflow and enabling faster decision-making during early production stages.
ベストプラクティス
- Craft detailed and specific prompts to maximize semantic alignment and output quality from the Sora 2 API.
- Leverage the API's control parameters to fine-tune style, motion, and audio synchronization for your target audience and use case.