Machine Learning Algorithms & Natural Language Processing

Oct 16, 2026 · Artificial Intelligence

A3 Framework: 14B CLI Agent Beats 235B Model via Structured Action Credit Assignment

Fudan and SJTU researchers open-source A3, a reinforcement learning framework that uses AST-based structured credit assignment to train a 14B CLI agent achieving 24.6% exact match on ShellOps, doubling baselines, and outperforming a 235B model on out-of-distribution tasks with minimal computational overhead.