SPoT paper "Self-Improving Training & Thinking" now on arXiv with blog and thread

polkirichenko · x · 2026-11-12

Final post of the SPoT thread collects all resources: the paper (arXiv 2601.21343, with Chapter 3 covering post-thinking), the official blog, and collaborator Jason Weston's thread. The 14-author team includes Ellen Xiaoqing Tan, Jack Lanchantin, Polina Kirichenko, Jason Weston, and Olga Golovneva.

The paper argues that the classic pretraining/post-training split limits safety, factuality, and reasoning behaviors to late stages; the work introduces thinking and reinforcement earlier by using a strong post-trained model to rewrite data and judge rollouts.

Related event: Meta's SPoT: self-improving post-thinking training(4 posts)→

Original post →

More from Research

Research channel →