Claude Opus 5 on GitLab: Reasoning built for the hard tasks

This post details the integration of Claude Opus 5 into the GitLab Duo Agent Platform, highlighting its improved reasoning capabilities for complex tasks like multi-file features and large refactors. It emphasizes the model's higher resolution rate (93.3%) and completion rate (100%) on benchmark tasks, leading to fewer partial patches and more merge-ready code. The post also touches on improved coordination between multiple agents, cost management with GitLab Credits usage caps, and faster execution times at the 95th percentile.