Jenni AI and Grammarly both use AI to help with writing, but they do different jobs. Jenni is a research-writing workspace that helps you draft and cite from academic sources; Grammarly checks and polishes what you've already written, wherever you write. Here's how they compare for students on features, free plans and price.
| Feature | Jenni AI | Grammarly |
|---|---|---|
| Best for | Drafting research papers from sources | Polishing and proofreading your writing |
| Free plan | 10 AI autocompletes/day, 10 PDF uploads, 5 AI chat messages | Grammar and spelling, 100 AI prompts/month, Authorship, Citation Finder (5 citations/day) |
| Paid price | Plus $12/month, Pro $29/month billed monthly (up to 60% off billed annually) | Pro $12/month billed annually |
| Student discount | None listed | 50% off Pro for students (limited time) |
| AI writing | Autocomplete grounded in real papers; outlining tools | AI prompts and rewrites; agents like Reader Reactions |
| Research and sources | Search 200M+ papers, chat with PDFs, Zotero/Mendeley import | Not a research tool |
| Citations | 10,000+ citation styles | Citation Finder in APA, MLA and Chicago |
| Plagiarism checking | Not a core feature | Included in Pro |
| AI detection | Not offered | AI detector on Pro |
| Writing-process proof | No equivalent | Free Authorship reports |
| Where it works | Jenni's own web editor | Browser, Google Docs, Word, desktop and mobile apps |
Prices and features as of November 2026 — check the official site for current details
Prices and features as of November 2026 — check the official site for current details
Best for: drafting research papers with sources and citations
Jenni AI is a writing workspace for academic papers. Its AI autocomplete suggests your next sentences grounded in real papers, it includes outlining and editing tools, and you can chat with your uploaded PDFs and library to get answers with citations. You can search more than 200 million papers, import from Zotero or Mendeley, and cite in more than 10,000 styles. The free plan includes 10 AI autocompletes per day, 10 PDF uploads and 5 AI chat messages. Jenni Plus ($12/month) raises that to 5,000 autocompletes and 500 AI chats per month with unlimited PDF uploads, and Jenni Pro ($29/month) removes the limits. Jenni advertises up to 60% off with annual billing.
Why students use it:
Best for: polishing and proofreading what you've written
Grammarly (now part of the company Superhuman) checks grammar, spelling and tone as you type in Google Docs, Word, your browser and its apps. The free plan includes corrections, 100 AI prompts a month, Authorship — which records what you typed, pasted or generated so you can show your writing process — and a Citation Finder agent that can insert up to 5 APA, MLA or Chicago citations a day. Grammarly also offers AI agents such as Reader Reactions and AI Grader, though some agents require a paid plan. Pro costs $12/month billed annually and adds 2,000 AI prompts a month, full-sentence rewrites, a plagiarism checker and an AI detector.
Why students use it:
Choose Jenni AI if you're writing a research paper and want help drafting, outlining and citing from academic sources in one workspace. Choose Grammarly if you mostly need to polish and proofread writing you've done yourself, want it to work everywhere you write, and like the idea of Authorship reports to show your process. Many students use both: Jenni for research-heavy drafting and Grammarly for a final check. Either way, check your instructor's AI policy before using AI-generated text in graded work.
Fixing grammar and spelling in your own writing is usually allowed, but submitting AI-generated sentences may not be. AI detectors such as Turnitin's can flag text that appears AI-generated, though Turnitin says results shouldn't be the only basis for action. Rules vary by course, so read your syllabus and disclose AI use when required.