Grammarly

Editorial assessment

The dividing line is whether you want corrections only or AI work on top of them. The plans table gives Free 100 AI prompts a month, Pro 2,000 per member and Enterprise an unlimited allowance, and it reserves full-sentence rewrites, tone adjustment and plagiarism and AI-text checks for Pro.

• Free fits people who mainly need spelling, grammar and tone detection and send fewer than about 100 prompts a month.
• Pro fits writers who rewrite or draft with AI most days, need plagiarism or AI-text checks, or want one shared style guide and brand tone for a team of up to 149 members.
• Enterprise fits organizations that need unlimited prompts, data loss prevention, BYOK encryption, custom roles or more than one style guide.

For long-form marketing copy rather than correction, the Jasper and Copy.ai profiles cover tools built around campaigns, and the AI writing tools category lists the rest of the field.

A prompt is any request typed into the prompt field, and clicking a ready-made suggestion such as Improve it also uses one. A single prompt can be a few words or several paragraphs long. The allowance refills monthly on the day generative AI first became available in your account, not on the first of the month, and a counter under the lightbulb icon shows what is left.

Paid users who reach zero before their refill date are told to contact support; no prompt top-up is listed.

Docs, the editor at app.grammarly.com, puts a panel of agents beside your text. Each one handles a different review job:

• AI Grader estimates a grade against a rubric you add; Free users get one document scan per day with limited suggestions.
• Citation Finder looks for public sources that support or contradict your points and formats citations in APA, MLA and other styles.
• Reader Reactions predicts the takeaways and open questions of a chosen audience.
• Plagiarism Checker compares text with web, academic and published sources and suggests MLA, APA or Chicago references.
• Authorship records how a text was written so you can show the process later.

The grader, citation, plagiarism and AI-detection agents are listed for Pro subscribers, while Enterprise, Business and Education admins decide which agents members can open. Uploaded files lose images, charts, comments, formulas and text columns when exported back to PDF or Word.

Grammarly lists suggestions in 24 languages besides English, from Spanish and German to Korean, Hindi, Japanese and Chinese, and it recognizes American, British, Canadian, Australian and Indian English. Paragraph-level rewrites are narrower and cover Spanish, French, Italian, German, Portuguese and Ukrainian.

In-line translation is a paid feature in the Windows and Mac apps and the Chrome extension, with 19 language options. It handles up to 4,000 characters at once and works only on text you are writing, so a received email or a web page cannot be translated with it.

For Free and single-user Pro accounts, the Product Improvement and Training setting is on by default, which lets Grammarly use your content to train and validate its models. You can switch it off in account settings; writing statistics such as words written and suggestions accepted may still be collected. On Pro accounts with more than one member, only an administrator can change the setting.

Team controls grow with the plan. Pro includes one style guide, one brand tone and two user groups, while Enterprise lifts those to unlimited and adds SAML single sign-on, SCIM, audit logs and data loss prevention. Enterprise is sold through Superhuman Go, whose agents and connectors to apps such as Gmail, Google Calendar and Jira can also be switched on inside Grammarly’s desktop app and extension.