​From PPO to DPO to GRPO to the RL frontier—Rubrics!

​Guest Expert

​Cameron R. Wolfe, Senior Research Scientist at Netflix, Author of the Deep Learning Focus newsletter (60K+ subscribers).

​Preview

​PPO

​DPO

​GRPO

​Rubrics-based Rewards

​February Seminars

• ​2/5: Meta AI

  • ​Guest Expert: Yichen Wang (Meta)

• ​2/12: Transformer

  • ​Guest Expert: Srijanie Dey, Tsavorite Scalable Intelligence

• ​2/19: OpenClaw

  • ​Guest Expert: Val Andrei Fajardo, LlamaIndex Founding ML Engineer, Author of the Build a Multi-Agent System From Scratch

• ​2/26: PPO➝DPO➝GRPO➝Rubrics

  • ​Guest Expert: Cameron R. Wolfe, Netflix, Author of Deep Learning Focus

​January Seminars

• ​1/29/2026: 9 AI Eval Formulas

• ​1/22/2026: TPU

• ​1/15/2026: How Small Models Learn Tool Use from AWS

• ​1/8/2026: Manifold-Constrained Hyper Connection (mHC) from DeepSeek

• ​1/8:2026: Introduction to Generative AI

​About the Seminar Series

​In 2026, I’ve made a personal commitment to teach one live AI seminar every week by hand ✍️.

• ​Foundation: intuition, math, and mental models of core AI concepts, for beginners.

• ​Frontier: research papers, algorithm, and architectures used by frontier models, for advanced AI engineers and researchers.

​Live attendance is free.

​The recordings and Excel workbooks are available for members of the AI by Hand Academy.