Simple vs detailed prompts: head-to-head image model comparison shows each model's bias

b4silio · reddit · 2026-11-13

A Redditor compared prompt adherence across recent image models—Minimax H3-Img, Minimax H3 stills, Iris Z, Moss, Qwen, and Krea2—using three prompt tiers: fully undefined, style-pinned, and fully sketched scene descriptions. The shared grid shows 3 generations per model for "Epic Fantasy Landscape" on an RTX 6000 Pro, with resolution and gen-time annotations (e.g., Minimax H3-Image 16Mp in 42s).

Findings: with detailed prompts, most models now follow instructions well; with undefined prompts, some models vary widely while others show a strong bias producing near-identical images across seeds. Iris Z small underperforms with high generation time, though its depth maps are nice.

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