Getting the most out of Opus 5.5 in Claude and Claude Code

Opus 5.5 in Claude and Claude Code offers enhanced capabilities for multi-step tasks, outperforming Opus 5. It can work for longer periods with minimal oversight, making it suitable for extensive coding tasks that require carrying changes through large repositories until tests pass. The model clearly communicates its actions and thinks before each reply. Users should be aware of notifications indicating a switch to older models, as the chat will then continue on that model.