Holo3 Test driving the best computer use agent I could run on my laptop

March 2026 was a busy month for computer-use agents. On March 5, OpenAI released GPT-5.4 and reported a 75.0% score on OSWorld-Verified , a benchmark for desktop tasks completed through screenshots, mouse actions, and keyboard actions. The reported human baseline is 72.4% , so this was the first time a general computer-use agent had crossed that line on this evaluation. Then, on March 31, H…