Reddit user finds popular Qwen 27B finetune underperforms stock after thinking time cut

Brief-Effect9065 · reddit · 2026-09-03

A Reddit user reports that DavidAU's Qwen3.8-27B-TURBO-Fable-Cold-Fusion-735-882-Heretic-Uncensored finetune is a disappointment, suspecting that drastically shortening the model's thinking duration effectively lobotomized it.

Testing single-file HTML tower defense game generation in the DeepSeek harness — with both simple and detailed prompts, in low and xhigh modes — the finetune performed worse than both the stock model and its predecessor (Qwen3.8-27B-Cold-Fusion-GAIN-V1.1). The poster questions where the model's published benchmark scores come from.

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