"Should I use Grammarly or an AI writer?" is a common question, but the two usually solve different problems. One improves writing you have already done. The other produces new text for you to work with. Knowing which problem you have makes the choice easy.
The short answer
- If you already write, and want it clearer and more correct, start with an editing assistant.
- If you struggle to get started or produce volume, a drafting tool may help more.
- Many writers use both: generate or outline, then rewrite and edit.
What an editing assistant does
An editing assistant such as Grammarly reviews your text and suggests changes to grammar, spelling, punctuation, clarity and tone. The ideas and structure stay yours; the tool acts as a second pair of eyes.
Strengths: immediate feedback, works where you already write, and catches errors you would otherwise miss.
Limits: it will not fix weak arguments or poor structure, and some suggestions do not suit your style.
What an AI writing assistant does
AI writing assistants, sometimes called generators, create new text from a prompt, brief or outline. Some marketing platforms include this too: WriteSonic, for example, combines AI article writing with tools for tracking how brands appear in AI search.
Strengths: fast first drafts, variations and brainstorming.
Limits: the output can be generic, and AI can state incorrect information confidently, so everything needs checking.
Key differences at a glance
- Starting point: an editing assistant needs your draft; a generator needs a prompt or brief.
- Main output: suggestions and corrections, versus new text.
- Biggest risk: accepting every suggestion blindly, versus publishing unverified claims.
- Best for: everyday writers who want polish, versus content producers who need a starting point.
The line is blurring: editing tools increasingly include generative features, and generators include rewriting tools. Check each product's current features rather than relying on labels.
Using both together
- Outline the piece yourself, so the thinking is yours.
- Use a generator to draft sections you find hard to start.
- Rewrite in your own voice and add your own examples.
- Fact-check every claim.
- Run a final pass with an editing assistant.
For a fuller version of this process, see the beginner's guide to an AI-powered writing workflow.
Which should you choose?
Choose based on your bottleneck. If mistakes and unclear sentences are the problem, start with editing. If the blank page is the problem, try a drafting tool, but budget time for editing. You can compare more options in the AI tools directory.