Clybius

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Chroma-fp8-scaled

like 114

I join the question, Flash is a reduction in steps, and what does "heun" mean?

"heun" is a specific sampling method type, like euler or dpm++2m. The Chroma Flash models are said to work best with the "heun" sampler and either the "simple" or "beta" schedule types. I can confirm heun+simple works pretty damn well with silveroxide's chroma-unlocked-v47-flash-heun-8-steps-cfg-1-Q8_0.gguf model, but generation is slow with the inference program I use (stable-diffusion.cpp running the Vulkan backend.) Unfortunately, sd.cpp doesn't have the beta scheduler available (yet), so I can't comment on that one.