Wan is unusual in offering both a fully open-source line (for self-hosting or fine-tuning) and a separate closed, more capable preview model — worth checking which one a given claim about “Wan” actually refers to.
Alibaba Wan (Wanxiang)
by Alibaba (Tongyi Lab)
Alibaba's Wan model line — an open-source Apache 2.0 series plus a newer closed multimodal preview.
- Wan2.2 (July 2025): Mixture-of-Experts architecture, ~27B total / ~14B active parameters, Apache 2.0 (open, commercial use allowed)
- Wan2.5-Preview: separate closed model that natively syncs generated audio with video at 1080p/24fps
- Open-source repo: github.com/Wan-Video/Wan2.2; consumer access via the Tongyi app and wan.video