Why are some AI writing tools free and others cost hundreds per month?

The price gap mostly comes down to three things: the AI models they use under the hood, how much you can generate, and what extra features are bundled in. Free tools are rarely truly free. They're usually a way to get you in the door. You'll hit a word limit fast, maybe 2,000 words a month, and then you'll need to pay. Paid plans starting around $20 a month, like Jasper or Copy.ai, give you more generous limits and better templates. The tools that cost hundreds per month, like enterprise versions of Writer or custom deployments, are paying for access to more powerful AI models. Running these models costs real money in computing power. Every time you ask for a blog post, servers somewhere are crunching numbers. More advanced models produce better, more nuanced writing but cost more to operate. I've also found that higher-priced tools tend to include things like plagiarism checkers, brand voice settings, and team collaboration features. A solo blogger might be fine with a free tool, but a marketing team of ten needs those extras. The real insight here is that the underlying AI is often similar. A $20 tool and a $200 tool might use comparable technology. You're paying for the wrapper around it: the interface, the integrations, the support. For most beginners, starting with a free tier or a $20 plan is the right move. You'll learn what you actually need before spending more. Just watch those word limits closely. They sneak up on you.