NVFP4 Version of LTX-2.5 Text Encoder Released for ComfyUI

superPussyman · reddit · 2026-08-22

An NVFP4 quantized version of the LTX-2.5 Gemma-4 12B text encoder has been released for ComfyUI. The developer quantized the heavy decoder linear layers to native NVFP4 while maintaining original precision for embeddings, norms, and vision components. Testing indicates lower VRAM usage with no obvious quality degradation, successfully validated on Blackwell architecture.

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