Are there any AI tools that are completely free and actually useful?

Yes, quite a few. But the genuinely useful free tools usually have catches — limits on how much you can use them, watermarks on output, or they're free because the company is still testing and gathering users. Google's Gemini is free with a Google account and handles text, images, and code reasonably well. Microsoft Copilot is free and integrated into Bing and Windows, and it uses GPT-4 under the hood, which is surprising given the price tag. For image generation, Leonardo.ai gives you a daily allowance of free credits that resets every day. It's enough to generate maybe 20-30 images daily. Canva's free tier includes a basic AI image generator and some writing tools. For coding, GitHub Copilot has a free tier for students and open-source maintainers. The catch with free tools is almost always the same: you're limited to a certain number of requests per day or per month. Once you hit the cap, you wait until tomorrow or pay up. Another thing: free tiers often use slightly older or less powerful models. ChatGPT's free tier uses GPT-4o mini, which is fast and capable but not as thorough as the full GPT-4o on complex reasoning tasks. The difference matters for things like legal document review or debugging tricky code. My advice: start with the free version of whatever tool interests you. Use it until you genuinely hit a wall. Don't pay just because the upgrade prompt makes you feel limited. Most casual users never actually need the paid features.