Qwen Image 2.1 unnecessarily saves images with alpha channels, inflating file size by 15-20%
I just discovered that Qwen Image 2.1 saves images with an alpha channel information even when transparency isn't needed. For example, generating an image without specifying transparency or editing a non-transparent image will still output an image with an alpha channel, increasing file size by app…
Read the full story at r/StableDiffusion ↗
Timeline · 2 reports
- 2026-09-24 06:43 · r/comfyui
Qwen Image 2.1 unnecessarily saves images with alpha channels, inflating file size by 15-20% - 2026-09-24 06:41 · r/StableDiffusion
Qwen Image 2.1 unnecessarily saves images with alpha channels, inflating file size by 15-20%