Qwen 3.8 follows GPT-5.5 Pro reasoning prefills

A recent analysis of reasoning prefills across several open models, including DeepSeek V4 Flash, Inkling, Kimi K3, and Qwen3.8 A95B, shows varying degrees of alignment with GPT-5.5 Pro. Qwen3.8 A95B demonstrated a significant improvement of +18.18 pp when using reasoning prefills, increasing its overlap from 16.79% to 34.97%. Kimi K3, while having the highest overall overlap with GPT-5.5 Pro (31.11% unprefilled, 35.65% with prefill), saw a smaller gain of +4.54 points from the prefill.