Grammarly
Writing8.1Grammar, tone and rewriting help in every app you already write in
- Price
- $30/mo
- Free plan
- Yes
- API
- No
AI writing tools draft, rewrite and edit text from a prompt: blog posts, emails, ad copy, product descriptions, reports. The category splits into three groups. General assistants such as ChatGPT handle any writing task in a chat window.
Marketing platforms such as Jasper add brand voice, templates and team workflows on top of the same models. Editors such as grammar checkers work inside the documents you already write.
Prices range from free to $69 per seat per month, and the difference is rarely the quality of the prose; it is the workflow, the brand controls and how much of your context the tool can hold.
The listings below compare each tool on those points, with pricing checked by an editor.
Grammar, tone and rewriting help in every app you already write in
OpenAI's general-purpose assistant for writing, analysis, images and code
Machine translation for 30+ languages, with glossaries and document files
Ranked by editor score, then by listing completeness. Entry price is the cheapest paid plan.
| Tool | Best for | From | Free plan | Platforms | Score |
|---|---|---|---|---|---|
| 1 | Anyone writing English daily who wants corrections without leaving their app | $30/mo | Yes | Web app, Windows, macOS +4 | 8.1 |
| 2 | Anyone who wants one assistant for writing, research, analysis and light coding | $20/mo | Yes | Web app, Windows, macOS +2 | 8.7 |
| 3 | Teams translating documents who need consistent terminology and EU-grade privacy | $10.49/mo | Yes | Web app, Windows, macOS +3 | 8.6 |
| 4 | Writers, analysts and developers who need careful, instruction-following output | $20/mo | Yes | Web app, Windows, macOS +4 | 8.3 |
| 5 | Marketing teams and agencies that need on-brand content at volume | $49/mo | No | Web app, Chrome extension | 8.1 |
Every listing in this hub, 24 per page.
4 checks, in the order that saves the most time.
A few pieces a week: a general assistant on a $20 plan is enough and you keep full control over the prompt. Dozens of assets a month across a team: look for brand voice training, a shared knowledge base and approval workflows, which is what the $50-and-up marketing platforms sell.
A Chrome extension or a Google Docs add-on removes the copy-paste loop. An API matters only if you generate content programmatically.
Use the free plan or trial on a real piece. Read the training policy: consumer tools may train on your drafts unless you opt out, business tiers usually exclude your data.
Most vendors discount 20 to 35 percent on annual plans; the monthly headline price is rarely what you pay.
Entry price is the cheapest paid plan on monthly billing. Every listing shows the date its pricing page was checked.
Short, factual answers on pricing, free plans and how AI writing tools are ranked here.
Ask another questionFor most people, a general assistant such as ChatGPT at $20 per month covers drafting, editing and rewriting. Marketing teams that need brand voice and workflows get more from a dedicated platform such as Jasper.
Yes. ChatGPT, Perplexity and most assistants offer a free plan with usage caps. Dedicated marketing platforms usually offer a trial instead of a free tier.
Google ranks content on usefulness, not on how it was produced. Thin, unedited AI text performs poorly; well-briefed, edited and fact-checked AI drafts perform like any other content.
It depends on the plan. Consumer plans of general assistants may use your conversations for training unless you opt out; team and business plans generally exclude your data. Each listing states the policy.
Jasper is built for marketing teams: brand voice, campaign generation, a knowledge base and integrations with Google Docs and your CMS. It costs more than a general assistant but replaces a lot of prompt discipline.
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