ChatLearn — 2 Technical Articles

Aug 8, 2025 · Artificial Intelligence

Reproducing the GSPO Reinforcement Learning Algorithm on Alibaba PAI: A Step‑by‑Step Guide

This article introduces the GSPO (Group Sequence Policy Optimization) reinforcement learning algorithm, explains its advantages over GRPO, and provides a detailed, end‑to‑end tutorial for reproducing GSPO training on Alibaba Cloud's PAI platform using the PAI‑ChatLearn framework.

ChatLearnGSPOPAI

0 likes · 8 min read

Reproducing the GSPO Reinforcement Learning Algorithm on Alibaba PAI: A Step‑by‑Step Guide

Alibaba Cloud Big Data AI Platform

Aug 29, 2024 · Artificial Intelligence

How PAI-ChatLearn Accelerates Large‑Scale LLM Alignment Training

PAI-ChatLearn is an open‑source framework that abstracts and decouples alignment training for large language models, offering flexible resource scheduling, multi‑backend support, and significant speedups—up to 208% for 70B models—while supporting RLHF, DPO, and custom training flows.

AI performanceChatLearnLLM alignment

0 likes · 11 min read

How PAI-ChatLearn Accelerates Large‑Scale LLM Alignment Training