US Labs Prefer RL for Reasoning, Chinese Labs Lean Towards SFT on Traces
xuanalogue · x · 2026-07-22
An observation highlights a divergence in reasoning training between US and Chinese AI labs: US labs favor Reinforcement Learning (RL), while Chinese labs more frequently use Supervised Fine-Tuning (SFT) on successful rollouts. The SFT approach is noted to be highly competitive, with Kimi K3 serving as soft evidence.
Related event: Divergent Sino-US Training Paradigms and New SFT Alignment Ideas(5 posts)→
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