Overview
Wan is an open-weight AI video generation model family developed by Alibaba’s Tongyi Lab, with Wan 2.2 as its current flagship. It supports text-to-video, image-to-video, and a combined text-and-image-to-video mode, using a Mixture-of-Experts (MoE) architecture that separates high-noise and low-noise experts to improve motion quality and prompt adherence. What sets Wan apart from Kling, Runway, or Sora is that the model weights are openly released and free to download under a permissive license — no subscription, no per-clip billing, no platform-side content filter. Since launch it has become the dominant open video model in the ComfyUI community, with extensive workflows, LoRA fine-tunes, and integrations. A smaller 5-billion-parameter TI2V variant is designed to run on a single consumer GPU while still producing usable 720p video.
Key Features
- Mixture-of-Experts architecture — dedicated high-noise and low-noise experts improve composition and detail over single-model diffusion.
- Text-to-video & image-to-video — plus a combined TI2V mode that blends a reference image with a text prompt for controllable output.
- Four specialized models — T2V, I2V, character animation (Animate), and audio-driven video (S2V) cover most creator needs.
- Consumer-grade 5B variant — the TI2V-5B model runs on ~24GB VRAM and still yields 720p@24fps clips.
- ComfyUI-native ecosystem — first-class nodes, community workflows, and LoRA fine-tunes already available.
- Commercially permissive license — released weights allow building products without per-generation fees.
Pricing
| Option | Price | For |
|---|---|---|
| Self-hosted (local GPU) | $0 | Full open-weight access, no caps or watermarks, commercial use allowed |
| Cloud GPU rental | $0.30–$2+/hr | Run on rented instances (RunPod, Vast) without buying hardware |
| Alibaba hosted API | Pay-per-use | Chinese-market billing for those who don’t want to self-host |
Comparison
vs. Kling: Kling offers a polished web app and higher resolution (up to 1080p) with simpler onboarding, but bills per generation and filters content. Wan matches much of its quality for free if you can run the weights, at 720p max.
vs. Runway: Runway is the creative studio favorite with a clean UI and broad editing toolkit, ideal for non-technical users. Wan trades that polish for open weights, unlimited local generation, and fine-tuning freedom.
vs. Sora: Sora delivers some of the most coherent long-form prompts inside ChatGPT, but is closed and gated. Wan gives researchers and developers full control to modify, self-host, and build on the model.