Why it matters

RLHF scaling is complex ops. Frameworks help but require care.

Advertisement

The architecture

Distributed PPO or DPO.

Reward + policy models.

DeepSpeed-Chat, TRL.

RLHF scaling mathDistributedPPO/DPOReward + policyboth scaleFrameworksTRL, DeepSpeed-ChatDeepSpeed-Chat, TRL, OpenRLHF handle scaling; ops still complex
RLHF scaling math.
Advertisement

How it works end to end

DeepSpeed-Chat.

HuggingFace TRL.

OpenRLHF.