We actually tested 5 AI writing tools. Here's the honest comparison nobody else will give you.
Most "best AI writing tools" articles have a tell: every tool is "powerful" and "versatile," and somewhere in the fine print there's an affiliate disclosure. The rankings don't reflect quality — they reflect commission rates. This is not that article.
Most “best AI writing tools” articles have a tell.
They're structured as a numbered list. Each tool gets roughly equal space. Every tool is “powerful” and “versatile.” Somewhere in the fine print there's an affiliate disclosure. The rankings don't reflect quality — they reflect commission rates.
This is not that article.
We tested five AI writing tools across the same tasks and we're telling you what we actually found, including the things that didn't work.
What we tested
We gave each tool four identical tasks:
We judged on: output quality on first attempt, how much editing was needed, ease of use for a non-technical person, and whether the free tier was genuinely useful or a bait-and-switch.
What we found
The tools that gave you a single good draft outperformed the tools that gave you three mediocre options. Having to choose between three versions of an email you don't love is not faster than writing the email yourself. The best performers understood tone — professional without being cold — without needing detailed instructions.
This is where the gap between tools is most significant. Some tools produce text that reads like text — coherent, structured, usable. Others produce text that reads like AI wrote it — grammatically correct but oddly phrased, with a tendency to repeat the same point in slightly different words. The tell is the third paragraph. If the third paragraph feels like filler, it is.
Almost every tool we tested did this well. Summarisation is where AI writing tools are most consistently reliable. If this is your primary use case, you don't need the most expensive tool — any of the main options will do the job.
Significant variation here, and it mostly came down to whether the tool understood that LinkedIn posts and Twitter posts have different conventions. The best tools adjusted tone and length automatically. The worst produced the same content in slightly different word counts.
The free tier reality check
This matters more than almost any other factor for most working professionals.
Some tools give you a genuinely useful free tier — enough to understand whether the tool solves your problem before you pay anything. Others give you a free tier designed to frustrate you into upgrading: word limits that cut off mid-sentence, features that are visible but greyed out, export functions that require payment.
The tools with honest free tiers tended to be the ones with better products. It's a signal: if a company doesn't trust you to use their free tier and want to upgrade, that tells you something about how confident they are in the product.
The bottom line by use case
The best AI writing tool for you depends entirely on what you write most often. Pick the task you do most often, find one tool that does it well, use the free tier for two weeks. If it passes that test, it's worth paying for.
See AI writing tools on Currly — with real community feedback on which ones people actually kept using after 30 days.
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