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Image ©OpenAI
OpenAI has introduced a new artificial intelligence model, designed to comprehend and replicate dynamic aspects of the physical world. Introducing Sora, the text-to-video model from OpenAI. Sora can generate videos up to a minute long while maintaining visual quality and adherence to the user’s prompt. Check out some of the demos available on their website, they are amazing and will only get better.
In this post, we discuss the expanded availability of the Sora AI model, now accessible to red teamers for assessing potential harms or risks in critical areas. Additionally, visual artists, designers, and filmmakers will be granted access to provide feedback and contribute to the model’s improvement for creative professional applications.
The primary objective is to train models that assist individuals in solving problems necessitating real-world interaction. Specifically, Sora is highlighted as a text-to-video model capable of creating videos lasting up to a minute.
Noteworthy features of Sora include its ability to maintain high visual quality and align with user prompts during the video generation process. This innovation represents a step forward in AI technology, aiming to enhance the understanding and simulation of real-world scenarios.
Sora’s capabilities are highlighted, emphasizing its proficiency in generating complex scenes with multiple characters, specific types of motion, and accurate details. The model exhibits a deep understanding of language, accurately interpreting prompts to create compelling characters expressing vibrant emotions. It can generate multiple shots within a single video, maintaining consistency in characters and visual style.
Acknowledging its current limitations, Sora may face challenges in accurately simulating the physics of complex scenes and understanding specific cause-and-effect instances. Spatial details and precise descriptions of events over time can pose difficulties for the model. Despite these weaknesses, Sora’s diffusion model, which gradually transforms static noise into a video over multiple steps, allows it to maintain subject consistency even when temporarily out of view.
OpenAI mentions Sora’s use of a transformer architecture similar to GPT models, enabling superior scaling performance. Data representation involves smaller units called patches, akin to tokens in GPT, facilitating training on a wider range of visual data with different durations, resolutions, and aspect ratios.
Building on previous research in DALL·E and GPT models, Sora incorporates the recaptioning technique from DALL·E 3, generating highly descriptive captions for visual training data. This enhances the model’s ability to faithfully follow user instructions in generated videos.
Sora’s versatility extends to generating videos solely from text instructions, animating existing still images with precision, and extending or filling in missing frames in existing videos. The model is positioned as a foundation for advancing AI capabilities in understanding and simulating the real world, marking a significant milestone in the journey towards achieving Artificial General Intelligence (AGI).