AI Frontier Lectures

Mar 14, 2025 · Artificial Intelligence

Open-Sora 2.0: How an 11B Open-Source Model Beats Closed-Source Video AI at 720p

Open‑Sora 2.0, an open‑source 11‑billion‑parameter video generation model, delivers 720p 24 fps videos with visual quality and text‑image alignment comparable to proprietary systems like HunyuanVideo and Step‑Video, while cutting training costs to $200 k using only 224 GPUs, and the release includes full code, weights, and a Gradio demo.