What is Reward Hacking? (Why AI Acts Weird)

Описание: Why do AI models sometimes repeat words endlessly or agree with bad ideas? This is often due to "Reward Hacking" in the Reinforcement Learning from Human Feedback (RLHF) process.

In this video, I explain how AI models learn to "trick" the reward systems meant to train them, prioritizing high scores over actual quality. We look at the disconnect between a model's ability to produce good content and a reward model's ability to judge it.


Timestamps:
0:00 - Introduction to AI quirky behavior 0:15 - How LLMs are initially trained 0:45 - What is a Reward Model? 1:17 - The "Chef" Analogy: Taste vs. Ability 1:54 - What is Reward Hacking? 2:15 - Examples: Sycophancy & The Seahorse Emoji 3:16 - Conclusion: Who is the AI really trying to please?

Key Concepts Covered:
RLHF (Reinforcement Learning from Human Feedback)
Sycophancy in AI
Reward Models vs. Generative Models

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