Last updated: 2026-08-19
Wordtune is an AI sentence rewriter, rated 4.6/5 on G2 from 196 reviews. Unlike full-document generators, it works inline on text you have already written, offering Casual, Formal, Shorten, and Expand rewrites for any highlighted sentence. A Chrome extension and Word add-in bring it into your existing writing tools.
About Wordtune
Wordtune is an AI writing assistant developed by AI21 Labs, founded in 2017 in Tel Aviv by Yoav Shoham, Ori Goshen, and Amnon Shashua. Launched in October 2020, the tool has grown to serve millions of writers globally. AI21 Labs has raised $636M in total funding, including a $300M Series D in May 2025 at a $1.4B+ valuation, making Wordtune one of the best-resourced writing assistant products on the market.
The core interaction is simple: highlight a sentence anywhere you write, and Wordtune surfaces several rewrite options directly inline, without opening a separate app or breaking your writing flow.
Delivery is a Chrome extension plus a free Microsoft Word add-in, so the same rewriting tools follow the user across email, documents, and social platforms instead of living inside one dedicated app.
Pricing
Free: $0/month, capped daily rewrites and summaries; unlimited grammar and spell-check. 89/month billed annually, for expanded daily rewrites and summaries. 99/month billed annually, for unlimited rewrites, summaries, and vocabulary enhancements plus priority support.
99/seat/month billed annually, adding centralized billing and enterprise support. edu email.
| Tier | Monthly price | What it includes |
|---|---|---|
| Free | Free | 10 rewrites and AI suggestions per day. 3 AI summaries per month. Unlimited spelling and grammar checks. |
| Advanced | $6.99/mo | 30 rewrites and AI suggestions per day. 15 AI summaries per month. Unlimited AI recommendations. 89/month (saves 30%). |
| Unlimited | $9.99/mo | Unlimited rewrites, AI suggestions, summaries, vocabulary enhancements, clarity/fluency improvements. Premium support. 99/month (saves 30%). |
| Teams | $15.99/mo | All Unlimited features per seat. Centralized billing. Dedicated business support. 99/seat/month. |
Key Features
- Real-Time Sentence Rewriting: Highlights trigger instant alternative phrasings with tone (Casual/Formal) and length (Shorten/Expand) controls, offering multiple rewrite options per sentence in under a second.
- Spices Co-Writer (v2.0): Adds analogies, statistical facts, counter-arguments, or historical context to enrich paragraphs with a single click, turning sparse drafts into evidence-rich writing.
- Tone and Formality Control: Switches between Casual and Formal registers instantly, making it useful for adapting the same content across internal communications and client-facing documents.
- Google Docs and Gmail Integration: Chrome extension works natively inside Google Docs, Gmail, LinkedIn, Outlook, and WordPress, so rewrite suggestions appear as an overlay without switching tabs or copying text elsewhere.
- Microsoft Word Add-In: Free Word add-in brings Wordtune's rewriting and clarity features into desktop Microsoft Office without requiring the Chrome browser.
- Grammar and Spelling Checker: Automatic grammar and spelling corrections run on all plans including Free, catching errors as you write without disrupting the rewriting workflow.
Pros
- Rated 4.6/5 on G2, Wordtune pairs affordable pricing with one of the higher review scores among AI writing assistants.
- Sentence-level tone control (Casual/Formal, Shorten/Expand) generates multiple rewrite options for a single highlighted sentence, so editing stays fast without leaving the page.
- The free Microsoft Word add-in extends the same rewriting tools to desktop Office, on top of the Chrome extension's browser coverage.
- The $636M in funding behind Wordtune gives it more product stability and update cadence than bootstrapped writing-assistant alternatives typically have.
- Spices adds evidence-backed content enrichment (statistics, analogies, counter-arguments) directly in the editor, a feature neither Grammarly nor Rytr currently offers.
Cons
- Free plan's daily rewrite and summary limits are tight enough that a single active editing session can exhaust them, creating immediate upgrade pressure.
- Primarily optimized for English: non-English language support exists, but quality is noticeably weaker for non-European languages.
- Subscription management draws real complaints on Trustpilot (rated 4.1/5): unauthorized renewals and a harder-than-expected cancellation process show up repeatedly in reviews.
- Lacks SERP data, content scoring, or SEO optimization: it improves writing quality only, with no visibility into search ranking.
- Sentence-level focus means poor performance for long-form structural editing: reorganizing entire sections still requires manual work.
Data Handling
- Training-data policy
- AI21 Labs has not publicly disclosed specific training data policies for Wordtune. Enterprise customers should review the privacy policy for data retention terms.
- Compliance
- GDPR
Frequently Asked Questions
What does Wordtune actually cost?
Wordtune has four tiers in 2026: Free costs $0/month, Advanced runs $6.99/month (or $4.89/month billed annually), Unlimited is $9.99/month (or $6.99/month annually, the most popular plan), and Teams is $15.99/seat/month (or $7.99/seat/month annually) with centralized billing. Annual billing cuts every paid tier's monthly rate by roughly 30 percent.
Does Wordtune have a free plan?
Yes. Ten rewrites and AI suggestions a day, three AI summaries a month, and unlimited spelling and grammar checks come at no cost. That covers occasional sentence polishing, though anyone editing actively runs out mid-session and moves to Advanced or Unlimited.
What should you use instead of Wordtune?
Grammarly is the usual substitute, adding full-document checking and plagiarism detection that Wordtune leaves out. QuillBot costs less for bulk paragraph paraphrasing. HyperWrite pairs sentence suggestions with a browser automation agent for writers who want both in one place.
Is Wordtune better than Grammarly?
Grammarly checks an entire document for grammar, plagiarism, and tone consistency, while Wordtune focuses on rewriting one sentence at a time with sharper Casual and Formal variants. Grammarly's free tier allows more daily use than Wordtune's capped free plan. For document-wide proofreading, pick Grammarly; for creative sentence rewriting, pick Wordtune.
What does it take to start using Wordtune?
Add the free Wordtune Chrome extension or Word add-in, then open any document, email, or web form where you write. Highlight a sentence to see rewrite suggestions immediately, choose a tone or length variant, and apply it in one click. Trying the free tier requires no account setup.
Top Alternatives
- Grammarly: Grammarly checks whole documents for grammar and plagiarism; Wordtune rewrites tone faster at the sentence level.
- HyperWrite: HyperWrite matters more when browser automation and full-sentence prediction outweigh controlled rewrite variations.
- Rytr: Rytr generates templated content from scratch rather than rewriting sentences you already have.
- Jasper: Jasper handles long-form content with brand-voice training, not sentence-level rewriting.
HokAI guides covering Wordtune
- Best AI Writing Assistant in 2026: How to Actually Choose: Grammarly, Wordtune, QuillBot and 6 more AI writing assistants compared for 2026, with the criteria to use once you stop trusting the shortlist alone.
- The AI Tools That Do One Microsoft Copilot Job, Cheaper: Microsoft 365 Copilot bundles five jobs into one $30 seat. See which single-purpose AI tools beat that price per job, and when stacking them costs more.
- Copy.ai Isn't a Writing Tool Anymore: Fullcast bought Copy.ai in October 2025 and rebuilt it as a $1,000-a-month workflow tool. Its cheapest plan is $29, has no free tier, and isn't for writers.