Free for Humans, Forever
Grammarly-grade writing help, free for everyone. Pay only for private AI assistance — or hand us the whole paper, billed by the word.
Free
Your everyday writing assistant — for everyone.
$0/ forever
- Grammar, spelling & punctuation
- Clarity, tone & conciseness rewrites
- Full-sentence suggestions — what Grammarly charges for
- Unlimited documents & collaborators
Powered by free open models that may log and train on the text you send. Want your work kept private? Go Paper Writer.
Paper Writer
Private AI assistance — your data stays yours.
$20/ month
- Everything in Free
- Private, zero-retention models — never logged or trained on
- LLM credits for AI drafting & revisions
- Provenance receipts — and one paid contributor unlocks AI for the whole paper
Done for you
Hand us the brief — we write the whole paper.
2.5¢/ word · academic
5¢ / word for everyone else
- End-to-end: research, outline, draft, citations
- Private & unlogged — your data stays yours
- Provenance receipts for the entire paper
- Academic rate is half price — 2.5¢ vs 5¢
About the free plan: free proofreading runs on free, community-hosted models (via OpenRouter) that may log and train on the text you send them. It’s a fair trade for free, premium-grade help — but if you don’t want your data logged, don’t opt in. Paper Writer and done-for-you papers run on private, zero-retention models instead.
Or have us write the whole paper
Hand us the brief and we take it end-to-end — research, outline, draft, citations, and refinement — on private, unlogged models. Billed simply, by the word.
Academics
2.5¢/ word
Verified students & faculty (.edu or institutional email). A 6,000-word paper runs about $150.
Everyone else
5¢/ word
Professionals, businesses, and everyone outside academia. A 6,000-word paper runs about $300.
Compare Plans
| Feature | Free | Paper Writer |
|---|---|---|
| Documents | Unlimited | Unlimited |
| Collaborators | Unlimited | Unlimited |
| Manual editing | ||
| Share links | ||
| Grammar, clarity & tone fixes | ||
| Full-sentence rewrites | ||
| Private, zero-retention models (no data logging) | — | |
| AI drafting | — | |
| AI revisions | On papers with a paid contributor | |
| Provenance receipts | View on shared papers | |
| On-device proofreadingComing soon | Coming soon | Coming soon |
AI revisions on a shared paper are unlocked for everyone when any contributor has the Paper Writer plan.
Frequently Asked Questions
Is the free plan really free forever?
Yes. Grammarly-grade writing help — grammar, spelling, clarity, tone, and full-sentence rewrites — plus unlimited documents, unlimited collaborators, share links, and the full editor are free forever. No trial clock, no document caps, no credit card. We can do this because the proofreading runs on free, open language models.
Is my writing private on the free plan?
Be honest with yourself here: no. Free proofreading sends your text to free, community-hosted models (via OpenRouter) that may log it and use it to train their models. It's a fair trade for free, premium-grade help — but if you don't want your data logged, don't opt in. The Paper Writer plan and done-for-you papers run on private, zero-retention models that are never logged or trained on.
What's the difference between Paper Writer and done-for-you?
Paper Writer ($20/mo) is a subscription you drive: private AI drafting and revisions, with your data protected and credits included. Done-for-you is the whole paper written for you end-to-end — research, outline, draft, citations, and refinement — billed per word: 2.5¢/word for academics, 5¢/word for everyone else.
Why do academics pay half the per-word rate?
Students and researchers are who we're built for, so the academic rate is half price — 2.5¢/word versus 5¢/word for everyone else. The academic rate applies to verified students and faculty (institutional or .edu email).
Do all co-authors need to pay?
No — one paid contributor unlocks AI revisions for everyone on that paper. If any contributor on a shared document has the Paper Writer plan, the whole team can work with AI on that paper.
What are provenance receipts?
Every AI draft and revision in PaperWriter is recorded with a receipt: what was suggested, where it landed in the text, and what sources it cited. Your paper can always disclose exactly which passages involved AI — important for journals, advisors, and your own peace of mind.
What is on-device proofreading?
An upcoming feature: downloadable language models that run entirely on your own machine to proofread your draft. Your text never leaves your computer — free proofreading with full privacy, no logging, for everyone. It's the private alternative to today's free cloud proofreading.
Start Free — Upgrade When the Paper Demands It
Your editor, your co-authors, your documents — free today and every day after.
No credit card required · Free for humans, forever