DataFunSummit

Jul 7, 2026 · Artificial Intelligence

Ant Group OpAgent: Online RL‑Powered Open‑Domain Browser Automation Agent

The article details Ant Group's OpAgent, an open‑domain browser automation agent that overcomes perception, timeliness, and implicit interaction challenges through a three‑stage pipeline of multi‑task supervised fine‑tuning, online reinforcement learning, and a four‑module Planner‑Grounder‑Reflector‑Summarizer architecture, achieving a 71.6% Pass@1 score on WebArena and releasing all code and models publicly.