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In a groundbreaking announcement, OpenAI has introduced Sora, a cutting-edge text-to-video model that takes artificial intelligence to new heights. Sora, named after the Japanese word for sky, signifies its limitless creative potential. Sora represents a collaborative effort by the creators of the DALL-E 3 text-to-image model, introducing an array of possibilities.

Prompt: The camera directly faces colorful buildings in Burano Italy. An adorable dalmation looks through a window on a building on the ground floor. Many people are walking and cycling along the canal streets in front of the buildings.

Unlocking Sora’s Potential

Sora is a text-to-video model which possesses the capability to produce videos using concise descriptive prompts. Sora can generate videos with resolutions reaching up to 1920×1080 or 1080×1920, and the maximum duration of the generated videos is one minute.

Sora’s expertise lies in its ability to transform text prompts into realistic and imaginative video scenes. The model boasts a deep understanding of language, enabling it to generate complex scenes with multiple characters, specific motions, and accurate details of subjects and backgrounds. It can even extend existing videos both forward and backward in time or generate new ones based on short descriptive prompts.

Behind the Scenes: How Sora Works

Built upon the technology of the DALL-E 3 text-to-image model, Sora employs a diffusion model and a transformer neural network. Unlike traditional generative video models, Sora divides videos into chunks, allowing the transformer to process them similarly to language models handling text. This approach enables Sora to be trained on diverse video types, varying in resolution, duration, aspect ratio, and orientation.

OpenAI trained Sora using a mix of publicly available and licensed copyrighted videos. While the exact number and sources remain undisclosed, the model’s capabilities were showcased through high-definition videos during a public demonstration. 

Applications Across Industries

Sora’s applications are vast, allowing users to create photorealistic videos based on their written prompts. It excels in generating scenes with vibrant emotions, complex characters, and accurate physical interpretations of objects. Whether crafting a movie trailer or extending existing footage, Sora proves to be a versatile tool for various industries, including filmmaking, design, and real-world problem-solving scenarios. 

Navigating Limitations and Ensuring Safety

While Sora showcases impressive capabilities, OpenAI acknowledges certain limitations, particularly in simulating complex physics and maintaining long-term coherence. To address potential risks and misuse, the company has taken cautious steps, providing limited access to a small red team for assessment. Sora-generated videos are tagged with C2PA metadata, incorporating filters and fake-image detectors to prevent inappropriate or harmful content.

Pioneering the Future of AI-Driven Video Generation

Sora represents a significant leap forward in AI-driven video generation, captivating industry experts and sparking excitement within the tech community. OpenAI’s commitment to responsible innovation is evident in its cautious approach, focusing on refining Sora based on feedback and addressing unique risks associated with generative video models. As the era of text-to-video AI unfolds, Sora stands as a testament to OpenAI’s dedication to pushing the boundaries of technological innovation.