Free AI Tools You Can Use Right Now
You do not need to build AI to benefit from it. Right now, today, you have access to AI tools that were considered impossible five years ago — and most of them are completely free.
The four main AI assistants
The most well-known AI assistant. The free tier includes GPT-4o. Excellent for writing, explaining concepts, coding, and analysis.
Google's AI assistant. Connects to Google Search for up-to-date information. Integrates with Gmail, Google Docs, and Drive on Google Workspace.
Known for being thoughtful, careful, and nuanced. Excellent at analysing long documents, careful reasoning, and complex writing tasks.
Built into Microsoft Edge and Office 365. Free. Based on GPT-4. Most useful if you already use Microsoft products like Word or Excel.
Start with Gemini — it only requires a Google account (which most Kenyans already have), works well on mobile data, and is completely free. Once comfortable, try the others. You will develop your own preference.
What these tools can do for you
- Write and improve text — emails, cover letters, essays, reports, WhatsApp messages to clients
- Explain anything — any concept, any topic, adjusted to your level and your context
- Research and summarise — give it a topic, get a structured summary with key points
- Translate — English to Swahili and back, plus dozens of other language pairs
- Brainstorm — business ideas, product names, solutions to problems, content angles
- Code and spreadsheets — write Excel formulas, Python scripts, SQL queries
- Interview preparation — practice questions and answers for specific jobs
- Teach — explain something you do not understand, tutor you at your pace
What AI tools cannot do reliably — the hallucination problem
AI assistants sometimes generate information that sounds completely convincing but is factually wrong. This is called hallucination. The AI is not "lying" — it genuinely does not "know" it is wrong. It is simply completing the pattern with what seems most likely given its training data.
Always verify important information — statistics, names, dates, laws, medical facts — with a reliable source before acting on it.
- Real-time events — unless the tool has live web access, it does not know recent news
- Precise calculations — AI can make arithmetic errors; use a calculator for anything that matters
- Your specific context — AI gives general answers; a doctor, lawyer, or accountant who knows you is better for high-stakes personal decisions
- Confidential data — never paste passwords, ID numbers, salary data, or sensitive business information into a free AI chat
A quick note on privacy
When you use a free AI tool, your conversations may be used to help train future versions of the model. For everyday learning and writing, this is generally fine. For sensitive work conversations or client data, use an enterprise tool with privacy guarantees, or a local model. We will cover this in Unit 8 (AI and Your Data).
In the next lesson, you will have your first real AI conversation — step by step, guided.