I would use it exclusively if Google released a native Mac app.
I spend 75% of my time in Codex CLI and 25% in the Mac ChatGPT app. The latter is important enough for me to not ditch GPT and I'm honestly very pleased with Codex.
My API usage for software I build is about 90% Gemini though. Again their API is lacking compared to OpenAI's (productization, etc.) but the model wins hands down.
I spend 75% of my time in Codex CLI and 25% in the Mac ChatGPT app. The latter is important enough for me to not ditch GPT and I'm honestly very pleased with Codex.
My API usage for software I build is about 90% Gemini though. Again their API is lacking compared to OpenAI's (productization, etc.) but the model wins hands down.