Claude Opus 5 dazzles with smarts, yet its neurotic chatter frustrates devs
Lenny’s seven‑model How I AI benchmark puts Opus 5 atop the leaderboard, outscoring GPT‑5.6 Sol, Sonnet 5 and Gemini 3.1 Pro on most tasks. The model’s sharp reasoning feels like an intelligence overhang, but its relentless verbosity and “neurotic” personality spark friction in real coding sessions. Lenny still plans to use it for high‑impact tasks, but warns developers to brace for chatter.