[starchild3001]

1. I find Gemini 2.5 Pro's text very easy and smooth to read. Whereas GPT5 thinking is often too terse, and has a weird writing style.

2. GPT5 thinking tends to do better with i) trick questions ii) puzzles iii) queries that involve search plus citations.

3. Gemini deep research is pretty good -- somewhat long reports, but almost always quite informative with unique insights.

4. Gemini 2.5 pro is favored in side by side comparisons (LMsys) whereas trick question benchmarks slightly favor GPT5 Thinking (livebench.ai).

5. Overall, I use both, usually simulatenously in two separate tabs. Then pick and choose the better response.

If I were forced to choose one model only, that'd be GPT5 today. But the choice was Gemini 2.5 Pro when it first came out. Next week it might go back to Gemini 3.0 Pro.