WanGP FL2VA Video Generation Artifacts: Low VRAM Settings Suspected

Bulky-Schedule8456 · reddit · 2026-08-09

A developer encountered noticeable artifacting in WanGP while running the FL2VA Pruned 20B model with 4-step acceleration and a Speed LoRA.

The test was conducted at 480p (832x480) using a very low VRAM profile. The community suspects the visual artifacts are directly caused by the extreme low VRAM settings, though precision loss from optimizations like Sage Attention could also be a factor. This highlights the common trade-offs and tuning challenges when running large video generation models on consumer hardware with limited VRAM.

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