Microsoft Just Embarrassed Browser Web Agents — 1,000 Lines Made GPT-5.4 Beat Opus 4.6 on 200 Web Tasks (opens in new tab)

Last Updated on May 27, 2026 by Editorial Team Author(s): Chew Loong Nian – AI ENGINEER Originally published on Towards AI. Microsoft Just Embarrassed Browser Web Agents — 1,000 Lines Made GPT-5.4 Beat Opus 4.6 on 200 Web Tasks A Microsoft Research lab spent the last few weeks watching every other AI lab build bigger, smarter browser agents — then on May 24 they shipped 1,000 lines of code that beat all of them with a terminal. Webwright pushes GPT-5.4 from 33.5% to 60.1% on the Odysseys long...