Research
115d agovLLM V0 to V1: Prioritizing RL Correctness
The vLLM team shifted their reinforcement learning focus to prioritize correctness over mere corrections. By refining how models evaluate their own errors, they reduce the risk of reward hacking. This approach ensures RLHF updates improve actual reasoning rather than just mimicking preferred formatting.
The Signal
Practitioners can expect more stable model convergence.