# Jenni AI Alternatives 2027: 10 Paid, Free & Open-Source

Source: https://zekaiwork.com/alternatives/jenni-ai/
Prices checked: 2026-11-12 (Zekai Price Ledger)

The best Jenni AI alternatives in 2027 are Paperpal (best overall, $12/mo billed yearly), Textero AI (best free plan) and STORM (best open source, MIT). Jenni AI itself starts at $12/mo billed yearly. Zekai checked these prices on vendor pages on 12 Nov 2026; 7 more are compared below, including 1 with a free plan and 2 open source.

| Tool | Type | Starting price | Free plan limit | Licence | Best for | Price checked | Links |
|---|---|---|---|---|---|---|---|
| Jenni AI (the tool being replaced) | — | $12/mo billed yearly | 10 autocompletes a day, 10 PDF uploads, 5 chat messages | — | — | 2026-11-12 | [pricing](https://jenni.ai/pricing) |
| Paperpal | Free plan + paid | $12/mo billed yearly | 200 grammar edits a month, 5 paraphrases a day, 5 paper-chat files a month | — | Manuscript polishing and submission checks | 2026-11-12 | [site](https://paperpal.com) [pricing](https://paperpal.com/pricing) [Zekai page](https://zekaiwork.com/ai-tools/paperpal/) |
| Textero AI | Free plan + paid | $8.25/mo billed yearly | 5 AI credits and 5 AI commands a day, unlimited PDF uploads | — | Low-cost essay drafting and references | 2026-11-12 | [site](https://textero.ai) [pricing](https://textero.io/pricing) [Zekai page](https://zekaiwork.com/ai-tools/textero-ai/) |
| Yomu AI | Paid | $10/mo billed yearly | No free plan | — | Academic writing with model choice | 2026-11-12 | [site](https://www.yomu.ai) [pricing](https://www.yomu.ai/pricing) [Zekai page](https://zekaiwork.com/ai-tools/yomu-ai/) |
| Thesis AI | Paid | $12/mo billed yearly | No free plan | — | Fully cited long-form drafts | 2026-11-12 | [site](https://www.thesisai.io) [pricing](https://www.thesisai.io/#pricing) [Zekai page](https://zekaiwork.com/ai-tools/thesis-ai/) |
| Smodin | Paid | $10/mo billed yearly | No free plan | — | Writer, detector and humanizer bundle | 2026-11-12 | [site](https://smodin.io) [pricing](https://smodin.io/pricing) [Zekai page](https://zekaiwork.com/ai-tools/smodin/) |
| Caktus AI | Paid | $15/mo billed yearly | No free plan | — | Essay writing with study help | 2026-11-12 | [site](https://caktus.ai) [pricing](https://caktus.ai/pricing) [Zekai page](https://zekaiwork.com/ai-tools/caktus-ai/) |
| Writefull | Free | Free plan; paid price not published | limited quota of language edits, rewrites and summaries | — | Language editing inside Word and Overleaf | 2026-11-12 | [site](https://www.writefull.com) [pricing](https://my.writefull.com/plans) [Zekai page](https://zekaiwork.com/ai-tools/writefull/) |
| STORM | Open source | Free (self-hosted) | No limit (self-hosted) | MIT | Open-source cited report generator | 2026-11-12 | [code](https://github.com/stanford-oval/storm) [Zekai page](https://zekaiwork.com/ai-tools/storm/) |
| Writing Tools | Open source | Free (self-hosted) | No limit (self-hosted) | GPL-3.0 | System-wide AI grammar and rewriting | 2026-11-12 | [code](https://github.com/theJayTea/WritingTools) [Zekai page](https://zekaiwork.com/ai-tools/writing-tools/) |
| GemType | Open source | Free (self-hosted) | No limit (self-hosted) | Apache-2.0 | Open-source grammar checker and rewriter | 2026-11-12 | [code](https://github.com/riponcm/GemType) [Zekai page](https://zekaiwork.com/ai-tools/gemtype/) |

## How each alternative compares with Jenni AI

- **Paperpal** (Free plan + paid, $12/mo billed yearly, checked 2026-11-12): Prime includes 20k grammar edits and 10k words of plagiarism checks a month, plus reference checks and a journal-fit report, and works in Word, Chrome, Google Docs and Overleaf. Switch if you need plagiarism, AI-detection and journal-fit checks before submitting a manuscript. Stay with Jenni AI if you draft from scratch with citations in one editor and want unlimited PDF uploads.
- **Textero AI** (Free plan + paid, $8.25/mo billed yearly, checked 2026-11-12): Premium has unlimited AI credits, commands and PDF uploads for $99 a year, and offers a quarterly option at $44.99 plus subscription-freeze months. Switch if you want unlimited AI use for under $9 a month and can pay $99 upfront. Stay with Jenni AI if you need 10,000+ citation styles, a document editor and live chat support.
- **Yomu AI** (Paid, $10/mo billed yearly, checked 2026-11-12): Pro gives 1,000 AI actions a month on efficient models; Ultra gives unlimited actions with frontier models such as Claude 5.5 Sonnet and Opus, and chat model usage can draw on credits. Switch if you want to choose among named frontier models and pay $10 a month on yearly billing. Stay with Jenni AI if you want a free tier and fixed unlimited chat on Pro-level pricing.
- **Thesis AI** (Paid, $12/mo billed yearly, checked 2026-11-12): Sells 48 documents a year rather than metered chat: Basic writes up to 50 pages per document, Pro up to 80, citing from 190 million papers with LaTeX, BibTeX and Overleaf export. Switch if you want a fully cited 8 to 80 page draft from one prompt, exported as LaTeX or Word. Stay with Jenni AI if you write sentence by sentence with autocomplete and chat inside the editor.
- **Smodin** (Paid, $10/mo billed yearly, checked 2026-11-12): Bundles an AI detector, humanizer, plagiarism checker, AI writer and career toolkit in one plan, and Premium adds unlimited writing output and a Chrome extension. Switch if you want plagiarism checking, AI-detection and humanizing tools in the same subscription. Stay with Jenni AI if you want a dedicated academic editor with 10,000+ citation styles and a PDF library.
- **Caktus AI** (Paid, $15/mo billed yearly, checked 2026-11-12): One plan with full access at $180 a year or $30 a month and a 1-day free trial, covering essays with academic citations, note taking and document analysis. Switch if you want tutor-style chat, note taking and essay drafting on a single plan. Stay with Jenni AI if you want a permanent free tier to try the editor.
- **Writefull** (Free, Free plan; paid price not published): Works as Writefull for Word and Writefull for Overleaf, with LaTeX tools such as Table Generator, Equation Generator and Error Assist, plus Revise and Cite. Switch if you write in Word or Overleaf and want language edits plus LaTeX table and equation help. Stay with Jenni AI if you want AI drafting and a built-in PDF library instead of editing only.
- **STORM** (Open source, Free (self-hosted)): Researches a topic and drafts a full-length cited report from web search, per its repo, rather than helping you write sentence by sentence in an editor. Switch if you want to generate a researched, cited first draft from your own API keys. Stay with Jenni AI if you want a browser editor with autocomplete, PDF library and citation formatting.
- **Writing Tools** (Open source, Free (self-hosted)): Works in any app through a hotkey on Windows, Linux and macOS with the free Gemini API or local Ollama models, with no account or subscription. Switch if you want free grammar and rewrite help in every app using your own model key. Stay with Jenni AI if you want citation management and a research-paper editor.
- **GemType** (Open source, Free (self-hosted)): Sends text only to Google's Gemini API with your key and covers browser, Word, desktop and Android, where Jenni works inside its own editor. Switch if you want a bring-your-own-key grammar checker across browser, Word and desktop. Stay with Jenni AI if you want AI autocomplete and citations built into one document editor.

## Open-source options in detail

- **STORM** (https://github.com/stanford-oval/storm): Licence: MIT; Last release: 2025-01-23
- **Writing Tools** (https://github.com/theJayTea/WritingTools): Licence: GPL-3.0; Last release: 2026-05-10
- **GemType** (https://github.com/riponcm/GemType): Licence: Apache-2.0; Last release: 2026-07-30

## Questions

### What is the best alternative to Jenni AI in 2027?
Paperpal is the best overall Jenni AI alternative on this page ($12/mo billed yearly). For no cost, Textero AI has a free plan (5 AI credits and 5 AI commands a day, unlimited PDF uploads). To self-host, STORM is open source (MIT).

### Is there a free version of Jenni AI?
Yes. Jenni AI has a free plan: 10 autocompletes a day, 10 PDF uploads, 5 chat messages. Paid plans start at $12/mo billed yearly, checked on 12 Nov 2026.

### Is there a 100% free alternative to Jenni AI?
Yes. STORM, Writing Tools, GemType are open source and free to self-host. Paperpal, Textero AI, Writefull have a free plan with limits, shown in the table.

### What is cheaper than Jenni AI?
Textero AI starts at $8.25/mo billed yearly, against $12/mo billed yearly for Jenni AI, as listed on each vendor's pricing page on 12 Nov 2026.

### How much do Jenni AI alternatives cost for a team of 5?
If each of 5 people buys the entry paid plan, at the prices Zekai checked on 12 Nov 2026, the monthly cost is Textero AI $41.25/mo, Yomu AI $50/mo, Smodin $50/mo, against Jenni AI $60/mo for Jenni AI. Team and business plans can cost more per seat. The Zekai Cost Finder on this page recalculates for any team size.

### Which is better, Paperpal or Jenni AI?
Prime includes 20k grammar edits and 10k words of plagiarism checks a month, plus reference checks and a journal-fit report, and works in Word, Chrome, Google Docs and Overleaf. Choose Paperpal if you need plagiarism, AI-detection and journal-fit checks before submitting a manuscript. Stay with Jenni AI if you draft from scratch with citations in one editor and want unlimited PDF uploads.

### Why are people leaving Jenni AI?
The documented reasons are: Jenni's pricing page shows the two billing options differ by 60 percent: Plus is $12 a month billed yearly but $30 billed monthly, and Pro is $29 yearly but $73 monthly. Free plan allows only 5 AI chat messages and 3 reviews. Date shown is the day the page was read (12 Nov 2026); Jenni's changelog lists Code Execution in Chat (10/21/26) and Figure and Table Cross-References (10/7/26), so recent releases add writing-workflow features rather than changing plan terms (21 Oct 2026). Each is sourced in the section above.

### How much is Jenni AI?
Jenni lists Plus and Pro tiers with a large discount for yearly billing. Monthly billing costs considerably more per month than the yearly rate.

## Related on Zekai

- [Paperpal alternatives](https://zekaiwork.com/alternatives/paperpal/)
- [Smodin alternatives](https://zekaiwork.com/alternatives/smodin/)
- [Writefull alternatives](https://zekaiwork.com/alternatives/writefull/)
- [AI for Writing, Translation & Localization](https://zekaiwork.com/professions/ai-writing-translation-localization-tools/)

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