Wan 2.1 (Alibaba): 14B and 1.3B open-source video models under Apache 2.0
In one sentence On February 25, 2025 Alibaba publishes code and weights for Wan 2.1 under the Apache 2.0 license: 14B and 1.3B text-to-video models and a 14B image-to-video model, at 480p and 720p. The 1.3B needs 8.19 GB of VRAM.
On February 25, 2025 Alibaba open-sources Wan 2.1, its family of video generation models. The weights are downloadable and the license is Apache 2.0, so they can also be used commercially.
There are two sizes: a large 14-billion-parameter model for 480p and 720p video, and a small 1.3-billion one that runs on consumer graphics cards with about 8 GB of memory. Besides text-to-video there is a model that animates a starting image.
Alibaba claims Wan 2.1 beats both open and closed models in its own tests, and the family is reported at the top of the VBench leaderboard with 86.22%. Within days the model is integrated into ComfyUI and then Diffusers.
Companies
Alibaba
Tools
Wan 2.1, Wan-VAE
Tags
Sources