Verified90% confidenceFactTime unknown
The RLHF pipeline consists of three steps: training a reward model to predict human preference scores, adjusting language model parameters using the PPO reinforcement learning algorithm, and using KL divergence constraints to prevent the model from deviating from its original language capabilities.
52
Sources
90%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
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Related Claims
VerifiedRLHF was formally systematized by the InstructGPT paper in 2022, with a basic three-step process: collecting human preference data to train a reward model, optimizing the language model using reinforcement learning algorithms such as PPO, and continuous iteration.84% similarVerifiedRLHF trains a reward model by collecting human preference ratings, then fine-tunes the language model using reinforcement learning algorithms such as PPO; however, the reward model can be deceived by adversarial inputs and cannot enumerate all variants of harmful request expressions.83% similar
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