I keep hearing that Codex CLI is better than Claude Code, but I've been using GPT-5-Codex with GitHub Copilot (in VSCode Chat or whatever it's called) and it's pretty ass. No comparison to Sonnet or Gemini.

Is it really that much better in Codex CLI or is it all shilling or what? Codex CLI has a free month trial but I don't even know if it's worth bothering to set it up and try it.