Want to get an AI assistant but don’t know which one to pick? ChatGPT, Claude, and Gemini—these three mainstream products each have their own strengths. I’ve tested them for a while, so I’ll go straight to the conclusions to save you time.
Core feature comparison at a glance
First, the most important differences:
- ChatGPT: the most complete ecosystem, strong plugin and web-browsing capabilities, ideal for users who need multifunctional integration
- Claude: outstanding long-text processing; can handle over 100,000 Chinese characters in a single run; excellent performance on writing and analysis tasks
- Gemini: deeply integrated with Google services, solid multimodal understanding, and a relatively generous free tier
Performance in real test scenarios
I tested them using the same 8,000-character product document, asking them to extract the key points and generate a summary. Claude’s output had the clearest structure and barely missed any points; ChatGPT added some of its own extended interpretations, which can be insightful but occasionally go off track; Gemini was the fastest, but its handling of details was a bit weaker.
For coding, I had them write a Python web-scraping script. ChatGPT’s code comments were the most detailed, Claude’s error handling was the most规范/standardized, and Gemini would occasionally use some outdated libraries.


