ChatGTP isn't even meant for coding anymore, nor Gemini. It's OpenAI Codex vs Claude Code. Gemini doesn't even have an offering.

https://antigravity.google/

On top of every version of Gemini, you also get both Claude models and GPT-OSS 120B. If you're doing webdev, it'll even launch a (self-contained) Chrome to "see" the result of its changes.

I haven't played around Codex, but it blows Claude Code's finicky terminal interface out of the water in my experience.

opencode + gemini is pretty nicely working