AnalysisOpinion / analysisImage, Video & 3D Generation · Efficiency & Inference · Training & Scaling1 source · Oct 17, 2026

Qwen2.1 Turbo Sigmas instead of Steps

I can confirm that Qwen2.1 Turbo produces a MUCH better image when using the 12 or 14 step sigma schedule.

Proof1 community thread

Key points

  • I saw a post somewhere, I forget where, that suggested using sigmas instead of steps.
  • I dug into this a bit, found the sigma schedule used by Qwen2.1, and had Claude derive a set of sigmas that follows the same sigma curve but with 12 and 14 steps.
  • I am attaching an image with the sigmas and workflow modification you need to run this setup.
  • 8-step sigmas: 1.0, 0.978453, 0.954180, 0.926626, 0.895080, 0.845148, 0.704534, 0.414568, 0.000000

Sources (1)

  • [1]Qwen2.1 Turbo Sigmas instead of Steps
    r/StableDiffusion (top, day) · Oct 17, 05:47 AM
    I can confirm that Qwen2.1 Turbo produces a MUCH better image when using the 12 or 14 step sigma schedule.
    I saw a post somewhere, I forget where, that suggested using sigmas instead of steps.

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