Wan

Wan is one of the most significant open releases in video generation, and Alibaba's decision to publish Wan2.2 under Apache 2.0 with weights on Hugging Face has made it a mainstay in the ComfyUI and open-source communities in a way few competing labs match. The Mixture-of-Experts design behind the 27B-parameter model is genuinely efficient, and the compact TI2V-5B variant generating a 5-second 720p clip in under 9 minutes on a single consumer GPU is a real accessibility win compared to the heavier compute demands of closed alternatives like Runway or Sora. Coverage extends well beyond basic text-to-video into image-to-video, speech-to-video, and character animation via Wan-Animate, giving it unusual breadth for an open model family. Output quality at 480p/720p is solid but doesn't yet match the top proprietary systems on motion coherence and fine detail, and self-hosting requires real technical setup that casual users won't want to deal with. The hosted wan.video platform and newer proprietary versions with native audio smooth that over with a simpler free-plus-credits experience. For anyone wanting open, customizable video generation without vendor lock-in, Wan is close to the best option available.