Section
Agentic Coding
- Terminal-Bench 4.0 Explained: What Changed From 2.1 and 3.0, and Why Scores Do Not Carry Over
Terminal-Bench 4.0 removes 8 tasks, fixes 19 and sets an 8-hour timeout. Opus 5.5 scores 66.4% (lab-reported) vs 59.6% independent. Why versions don't compare.