DadgogoAI Dictionary

Dictionary entry

reward model

noun \ri-ˈwȯrd ˈmä-dᵊl\
TopicTraining Senses1

Definition of reward model

  1. : a separate model trained to score how good a response is, used to guide reinforcement learning without a human rating every single answer

    • The reward model learned human preferences from a million comparisons.
    • If the reward model has blind spots, the main model will exploit them.
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Related terms

RLHF reinforcement learning from human feedback: a training method in which people rate or compare… reinforcement learning a way of training in which a model tries actions, receives rewards or penalties, and gradually… reward hacking when an AI finds a shortcut that earns a high score from its reward or test without actually… direct preference optimization a method for aligning a language model with pairs of preferred and rejected responses by… credit assignment the problem of determining which earlier actions, tokens, components, or agents contributed to…

Cite this entry

"Reward model." AI Dictionary, Dadgogo, https://dadgogo.com/dictionary/reward-model/. Accessed 13 Oct. 2026.

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