Flux 3 Klein underperforms Flux 2 Klein as edit model in Comfy despite better benchmarks

Few-Intention-1526 · reddit · 2026-10-16

A user reports Flux 3 Klein's edit results in ComfyUI are worse than Flux 2 Klein, contradicting official benchmarks claiming F3K far outperforms F2K. Test images show poor consistency: asking to seat a man on a sofa produced wildly different poses, outfits and scenes across four seeds. The poster is unsure whether the issue lies in Comfy's implementation or the model itself.

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