Prompting Claude Opus 5.5

Claude Opus 5.5 delivers faster output, fewer tokens, and stronger performance on agentic coding, code review, knowledge work, visual analysis, and long-running workflows than Opus 5, which can translate into better developer productivity, improved accuracy, and lower operating cost. For IT leaders, the strategic implication is that prompts and operating assumptions from Opus 5 should not be reused blindly: effort settings, max token limits, caching behavior, and agent harnesses may need recalibration to avoid higher latency or truncated responses. Organizations that rely on AI for software delivery, document generation, analysis, or multi-step automation should re-benchmark workflows to capture the model’s gains without introducing hidden cost or reliability issues.