claudeanthropicllmprompt-engineeringengineering-leadershipadaptive-thinkingopus-4-7 Opus 4.7 Isn't Slower. Your Prompts Are. Since Anthropic released Claude Opus 4.7 on April 16, 2026, a consistent complaint has rippled through developer communities: it feels slower. Threads tell roughly the same story — the prompts… michael tuszynski Apr 22, 2026 9 min read