I know most devs swear by Claude , Cursor or Gemini at this point. and honestly I get it, I've been a Claude Code user for months. But I gave GPT-5.3 Codex a proper shot today and... it's actually really good?
Like the terminal stuff is noticeably faster. I threw a mid-size Node project at it (auth system, REST API, Postgres migrations) and it just went. Didn't overthink, didn't ask 15 clarifying questions, just shipped working code. That 25% speed boost they advertised feels real in practice.