Vibe Check: Claude Opus 5 Is Brilliant in Flashes, Frustrating in Practice
Anthropic’s latest Opus can do impressive work—but getting it there may require dismantling the systems you already use

TL;DR
- Claude Opus 5 argued with instructions in its first week.
- The model stopped before finishing work.
- It did not integrate well with existing skills and plugins.
- The initial reaction was disappointment and confusion.