"What is the best free AI?" is one of the most searched questions right now. The good news is that for many everyday tasks, such as writing an email, summarising a text or translating, the free tier of the well-known chatbots is perfectly adequate. The short answer: none of them is best at everything, so it's worth keeping two or three side by side.
Free tiers at a glance
| Chatbot | Strength in the free tier | Good for |
|---|---|---|
| ChatGPT | All-rounder, limited image generation, good mobile app | General tasks, brainstorming, language practice |
| Gemini | Connected to Google Search and Google services | Up-to-date questions, working with Gmail and Drive |
| Claude | Natural writing, long texts and files | Letters and reports, document summaries, coding |
| Copilot | Free in Windows and Edge, Bing search | Quick questions alongside daily work |
| DeepSeek | Reasoning and maths, at no cost | Problem solving, maths, coding |
For a more detailed comparison of the paid plans and professional features, read Claude, ChatGPT, Gemini, Grok and Codex compared.
Limits of the free tiers
- Message caps: every service limits the number of messages or amount of use over a period. When you hit the cap, you wait a few hours or drop to a weaker model.
- Lighter models: each company's strongest model is usually only fully available on paid plans.
- Limited features: image and video generation, large file analysis and agents are usually paid or have low caps.
- Constant change: companies change their free-tier limits every few months; what is free today may not be tomorrow.
Five tips for getting more out of free AI
- Be specific. Instead of "write an email", say "a short formal email to a client about a delayed project delivery, polite tone, five lines at most".
- Give it a role. Starting with "You are a network engineer..." or "Explain like a teacher..." improves the answer.
- Compare answers. Ask an important question to two chatbots; where the answers differ is exactly where you need to be careful.
- Check claims. Chatbots are sometimes confidently wrong. Always verify statistics, laws, medicines and financial figures against the original source.
- Don't share confidential information. On free plans, conversations may be used to improve the model. My guide to privacy in chatbots explains what you should never share with AI.
Which one should I choose?
- For everyday, all-round use: ChatGPT or Gemini.
- For natural writing and working with files: Claude.
- For up-to-date information: Gemini or Copilot, which are connected to search.
- For maths and problem solving: try DeepSeek as well.
If your company uses AI for team work, a free personal account is not the right choice; business plans give better control over data. For choosing and setting one up, see the AI agent development service.
