We tested the paid versions of ChatGPT 5, Gemini 2.5, Grok 4, and DeepSeek across nine real-world categories, including problem-solving, image and video generation, fact-checking, analysis, creativity, and deep research.
We paid for every tool tested, no free tiers, no shortcuts. This is an independent comparison based purely on real performance, not hype.
Which AI is truly the smartest?
https://aistudio.google.com/live
00:00 - Intro
00:30 - Problem solving
02:47 - Image generation
05:08 - Fact checking
07:36 - Analysis
11:00 - Video generation
14:20 - Generation
16:03 - Voice mode
19:34 - Deep research
21:56 - Conclusion