AI Glossary
Reinforcement learning from human feedback
Also called RLHF
What does “Reinforcement learning from human feedback” mean?
Reinforcement learning from human feedback: Training method in which people compare or rate model outputs, and a reward model learns their preferences from those judgments. The language model is then optimized to produce answers that the reward model scores highly.

What is an example of “Reinforcement learning from human feedback”?
RLHF was a key part of turning raw language models into chat assistants that respond more helpfully and decline clearly harmful requests.