Baobao Algorithm Notes

Mar 28, 2025 · Artificial Intelligence

Can Small 7B Models Beat the State‑of‑the‑Art? A Critical Analysis of R1‑Zero Training and Unbiased GRPO

This article critically examines R1‑Zero‑style training by analyzing foundation models and reinforcement learning, uncovering pre‑training and optimization biases, proposing an unbiased Dr. GRPO method, and demonstrating a minimalist 7B‑model recipe that achieves new state‑of‑the‑art performance on AIME 2024.