Wan 2.2
Open-weight video diffusion from Alibaba.
Open Source 12–48 GB VRAM
- Min VRAM
- 12 GB
- GPU class
- Workstation GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free
LTX-Video
Real-time-ish open video diffusion from Lightricks.
Open Source 12–16 GB VRAMRuns locally
Actually FreeNo SignupOpen SourceWatermark-FreeHobbyist-FriendlyPlugin
Requires: ComfyUI
Visit LTX-VideoUpdated 2026-04-28 · Direct link
Hardware requirements
Runs locally · High-end GPU (16–24 GB)
Min VRAM
12 GB
Rec. VRAM
16 GB
Min RAM
32 GB
Rec. RAM
64 GB
Disk
40 GB
GPU class
High-end GPU
CUDA 12No Apple SiliconGPU RequiredQuant: FP16, FP8
Practical floor: RTX 3060 12GB; comfortable on 4080/4090.
Screenshot placeholder · LTX-Video
What is LTX-Video?
LTX-Video targets fast generation: a few seconds of 768x512 video per minute on a 4090. Lower fidelity than Wan/Hunyuan but practical for iteration on consumer hardware.
Pros & cons
Pros
- Fast for a video diffusion model
- Fits 12–16 GB
- Good iteration loop
Cons
- Lower fidelity than Wan/Hunyuan
- Motion can be janky
What's actually free?
Open weights. Free.
✓ Actually FreeNo SignupOpen SourceWatermark-Free
Alternatives
HunyuanVideo
13B open-weight cinematic text-to-video.
Open Source 24–48 GB VRAM
- Min VRAM
- 24 GB
- GPU class
- Workstation GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free
CogVideoX 5B
Open-source text-to-video diffusion from THUDM.
Open Source 12–24 GB VRAM
- Min VRAM
- 12 GB
- GPU class
- High-end GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free