We tested the three biggest AI chatbots side by side. Here is which one wins for writing, coding, research and everyday use.
The three contenders
ChatGPT (OpenAI), Claude (Anthropic) and Gemini (Google) all offer generous free tiers in 2025. Each has strengths the others lack. We put them through 12 real-world tasks.
- ChatGPT free: GPT-4o mini + limited GPT-4o — best for coding
- Claude free: strong long-document handling — best for writing
- Gemini free: integrated with Google — best for real-time info
Writing & editing
Claude wins for polished prose and long-form editing. ChatGPT is close behind but has more message caps. Gemini feels more transactional.
Coding
ChatGPT takes this one — clearer explanations and better multi-file reasoning on the free tier. Claude is a close second. Gemini lags for complex debugging.
Research & citations
Gemini wins because it is wired into Google Search and cites fresh sources. ChatGPT browses but with less reliable citations.
Verdict
Best free stack: use ChatGPT for code, Claude for writing, Gemini for research. Rotate and you will rarely hit a limit.