I disagree, based on having used it extensively over the last week. I find it to be at least as strong as Sonnet 4.5 and 5.2-Codex on the majority of tasks, often better. Note that even among the big 3, each of them has a domain where they're better than the other two. It's not better than Codex (x-)high at debugging non-UI code - but neither is Opus or Gemini. It's not better than Gemini at UI design - but neither is Opus or Codex. It's not better than Opus at tool usage and delegation - but neither is Gemini or Codex.