Model reference · open weights
Wan2.1-I2V-480P-Lightning is an open-weight video model from magespace. Wan2.1-I2V-14B-480P-Lightning-Diffusers (BF16) weighs 45.7 GB; the smallest configuration that runs it is L40S 48 GB.
Summary of the magespace/Wan2.1-I2V-14B-480P-Lightning-Diffusers model card, 2026-10-01
What it is
| Released by | magespace |
|---|---|
| Released | 2025-08-14 |
| Parameters | 16.4B |
| VRAM | 45.7 GB for the weights |
What it runs on
| Card | Weights | Memory |
|---|---|---|
| RTX 3060 12 GB … RTX 5090 32 GB | does not fit | |
| L40S 48 GB | fits (encoders offloaded) | 44.0 GB |
| A100 80 GB | fits | 78.2 GB |
| H100 80 GB | fits | 78.1 GB |
| RTX PRO 6000 Blackwell 96 GB | fits | 93.8 GB |
| DGX Spark (GB10) 128 GB unified | fits | 107 GB |
| H200 141 GB | fits | 138 GB |
| B200 180 GB | fits | 176 GB |
How it works
Running it yourself
Rent a machine by the hour. Runs as it is with diffusers, on the machine, in Python.
# on your rented machine: pip install diffusers transformers accelerate ftfy
import torch
from diffusers import DiffusionPipeline
from diffusers.utils import export_to_video
pipe = DiffusionPipeline.from_pretrained("magespace/Wan2.1-I2V-14B-480P-Lightning-Diffusers", torch_dtype=torch.bfloat16).to("cuda")
frames = pipe(prompt="a drone shot over a forest at sunrise").frames[0]
export_to_video(frames, "/workspace/out.mp4", fps=16)