Reinforcement learning through human feedback (RLHF) has come a long way. In this episode, research scientist Nathan Lambert talks to Jon Krohn about the technique’s origins of the technique. He also walks through other ways to fine-tune LLMs, and how he believes generative AI might democratize education. This episode is brought to you by AWS Inferentia (go.aws/3zWS0au) and AWS Trainium (go.aws/3ycV6K0), and Crawlbase (crawlbase.com), the ultimate data crawling platform. Interested in sponsoring a SuperDataScience Podcast episode? Visit passionfroot.me/superdatascience for sponsorship information. In this episode you will learn: • Why it is important that AI is open [03:13] • The efficacy and scalability of direct preference optimization [07:32] • Robotics and LLMs [14:32] • The challenges to aligning reward models with human preferences [23:00] • How to make sure AI’s decision making on preferences reflect desirable behavior [28:52] • Why Nathan believes AI is closer to alchemy than science [37:38] Additional materials: www.superdatascience.com/791

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