Sora 2 advances over the original Sora by adding synchronized audio, more accurate physics and realism, and improved controllability. The model is now capable of generating background sound, dialogue, and sound effects aligned with the visuals, which removes the need for external audio alignment. According to OpenAI’s system card, Sora 2 also follows user direction with higher fidelity, letting creators specify motion, style, or constraints more precisely.
In addition, Sora 2 seeks to better model physical behavior. For example, instead of teleporting objects to satisfy prompt outcomes, it allows for misses, rebounds, or natural motion constraints. The model is built with the goal of “more accurate physics, sharper realism, synchronized audio, enhanced steerability, and an expanded stylistic range.” With these enhancements, transitions, continuity across shots, and realism improve. In the app context, Sora 2 is made available via a dedicated iOS app and via sora.com, with a roadmap to eventual API access.
That said, these features also bring new challenges. Audio-visual sync must remain aligned, and physical realism may expose the model’s limitations more sharply. Additionally, more fine control increases the complexity of prompt design and moderation. Users and developers will need to learn how to balance creative freedom with constraints to avoid generating implausible or unsafe content. Overall, Sora 2 is a significant step forward in bringing video + audio generation into a more usable, expressive form.