I haven't used Gemini CLI, but when I'm using Claude I use Opus for planning, and Sonnet for executing things. I barely use Haiku, but I sometimes use it for brainstorming or really simple tasks.

I love Gemini for general knowledge and think it far outperforms Claude for research, but personally I cannot use Gemini for programming due to: 1. it taking so long 2. it not giving any information about its thought process / what it's doing "in its head", whereas Claude code tells you what it's thinking and allows you to interrupt.

So for now, I would personally recommend dropping Gemini for the actual implementation of programming or anything involving analysis of your codebase.

I don't doubt that Google has smart people on this, and that this may improve in a few months' time.

I think Claude is far better than Gemini, the lack of usage is a chronic problem. Even using the Max model is not enough. If I used that much, I think I worked a lot and took a rest. LOL.