opus-4-swe-bench-7-hour-continuous-coding

Summary

A single AI model demonstrated it could sustain complex software engineering work for seven hours straight without losing the thread, which is a practical capability threshold — real projects rarely fit in a few minutes, so this shows the model can handle the kind of long, multi-step work that actual development demands. It sets a benchmark for what "agentic" coding performance looks like and raises the bar for competitors to match.