Jenni AI vs Writefull

Jenni AI

• Graduate students and PhD candidates drafting cited papers
• Writers who want AI suggestions tied to their own sources
• Research groups co-authoring a manuscript in the browser

Writefull

• Researchers and students writing papers or theses in English
• LaTeX users who want language checks inside Overleaf
• Departments that want one group license for up to 100 people

Jenni AI

• The Free plan allows 10 autocompletes a day, 10 library uploads and 5 AI Chat messages, and exports body content only.
• Monthly billing costs far more than annual: $30 against $12 a month for Plus, and $73 against $29 for Pro.
• Plus caps Reviews and workflow runs at 10 a month each; only Pro removes the limits.
• No desktop or mobile apps are listed. The web app is described as working on mobile and desktop devices.

Writefull

• The Free plan has a daily quota on language suggestions and writing features.
• Writefull Revise and Writefull Cite are not part of Premium or Group plans; they need an institutional license.
• Writefull's own language models give feedback on English text only; other languages go through GPT.
• It runs inside Word, Overleaf and a browser. The terms of use state that refunds are not issued.

Jenni AI

Source-grounded autocomplete

Suggests the next sentences as you write and can be limited to the papers in your own library. Free accounts get 10 suggestions a day.

Traceable citations

Links each AI-suggested sentence to the page and paragraph of the source PDF, and formats references in more than 10,000 styles, including APA 7th, Chicago and IEEE.

Library and paper search

Holds uploaded PDFs and collections imported from Zotero or Mendeley, and searches an index of more than 200 million papers from inside the editor.

AI Chat across the library

Answers questions about one paper or the whole library with cited replies, which can be filtered by publication year, impact factor and citation count.

Reviews

Checks each claim in a draft against its sources and flags problems such as unsupported or overstated claims, alongside proofreading suggestions.

Collaboration and export

Co-authors edit in real time with inline comments, viewer and commenter roles and version history. Documents export to .docx, LaTeX or HTML.

Writefull

Language edits for research writing

Suggests grammar and word-use corrections from Writefull's own models, which are trained on journal articles and cover English only.

GPT edits for other languages

Switching the language check to GPT revises non-English text in Overleaf. Premium adds a custom prompt to steer those edits; Word does not have the switch yet.

Rewriting tools

Paraphrase a passage, make it concise, scientific or punchy, split or join sentences, and get synonyms that fit the sentence.

Title and Abstract Generators

Suggests titles from a selected passage and drafts an abstract from the full text. Both run on Writefull's own models.

LaTeX help in Overleaf

TeXGPT writes LaTeX on request, and the Table and Equation Generators turn a prompt or an uploaded image into LaTeX code.

Ask AI in Word

An assistant inside the Word add-in answers writing questions, either asked freely or about a selected word or passage.

Jenni AI

• Free$0

  10 AI autocompletes a day, 10 PDF uploads of up to 25 MB and 150 pages, 5 AI Chat messages, 3 Reviews and unlimited citations.

• Plus$12

  per month, billed annually; $30 billed monthly

  5,000 autocompletes, 500 AI edits, 500 AI Chat messages and 10 Reviews a month, unlimited PDF uploads, full document export and live chat support.

• Pro$29

  per month, billed annually; $73 billed monthly

  Unlimited autocomplete, AI edits, AI Chat, Reviews and workflow runs, PDFs of up to 1,000 pages and priority support.

• TeamsCustom

  Single invoicing, an admin dashboard for seats, a dedicated support channel and a lower price per seat for large teams. Arranged by demo.

Writefull

• Free$0

  Limited daily use of language edits, rewriting features, TeXGPT, Ask AI and the LaTeX generators. The quota resets the next day.

• Premium$12.50

  per month, billed annually ($150); $17 quarterly; $21 monthly

  Unlimited suggestions and feature use, under a fair use policy, across Writefull for Word, Writefull for Overleaf and Writefull X.

• Group$135

  per additional user / year for seats 2 to 49; first seat $150

  Annual Premium access for 2 to 100 people with an admin portal for inviting members. Seats beyond the 49th cost less, down to $105.

• InstitutionCustom

  Priced on expected student and researcher numbers. Covers all five tools, adding Writefull Revise and Writefull Cite.

Jenni AI

• Annual discount

  Save 60% with annual billing

  The pricing page marks the Annual option as saving 60%: Plus is $12 a month instead of $30, and Pro $29 instead of $73.

• Other savings

  Volume discounts for teams

  The Teams page offers a reduced price per seat for large teams, with single invoicing and an admin dashboard. Pricing is arranged through a demo.

Writefull

• Annual discount

  About 40% less with annual billing

  Premium is $150 billed once a year, equal to $12.50 a month, against $21 billed monthly. Quarterly billing is $51, or $17 a month.

• Education

  15% student discount for recommending Writefull

  Students who email a staff member at their institution about Writefull for Institutions, copying Writefull in, get 15% off a Premium plan.

• Other savings

  Group license discounts for 2 to 100 people

  A group license lowers the yearly price per seat as the group grows, from $150 for the first seat to $135 for seats 2 to 49 and less beyond that.