OpenAI Codex currently seems quite a lot better than Gemini 2.5 and marginally better than Claude.
I'm using all three back-to-back via the VS Code plugins (which I believe are equivalent to the CLI tools).
I can live with either OpenAI Codex or Claude. Gemini 2.5 is useful but it is consistently not quite as good as the other two.
I agree that for non-Agentic coding tasks Gemini 2.5 is really good though.