I cancelled my ChatGPT subscription because of Gemini 3, so obviously I'm having a different experience.

That said, I use Opus4.5 for coding through Cursor.

Gemini is for planning / rubber ducking / analysis / search.

I seriously find it a LOT better for these things.

ChatGPT has this issue where when it's doesn't know the explanation for something, it often won't hallucinate outright, but create some long-winded confusing word salad that sounds like it could be right but you can't quite tell.

Gemini mostly doesn't do that and just gives solid scientifically/ technically grounded explanations with sources much of the time.

That said it's a bit of a double edged sword, since it also tends to make confident statements extrapolating from the sources in ways that aren't entirely supported but tend to be plausible.