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Top 10 AI Writing Tools

The AI writing assistants businesses use for emails, marketing copy and documents, ranked by how many users or customers each one says it has.

Grammarly40 million people 2

Copy.ai17 million users 3

Wordtune10M+ users

Quick answer

Grammarly is the most widely used AI writing tool, trusted by 40 million people and 50,000 organizations, and it works in more than 1 million apps and sites. Copy.ai is second with 17 million users and focuses on go-to-market content, and Wordtune is third with 10M+ users and low-cost rewriting. For marketing teams producing campaigns at scale, Jasper (125k+ customers) is the specialist pick.

How it's ranked: Users, customers or enterprise deployments each vendor says it has, as published on its own website (read November 2026). Counts are each company's own claims and are measured differently, so treat them as a guide to scale, not an audit. Anyword, HyperWrite, Notion AI, ProWritingAid and Rytr publish no count, so they rank last, in alphabetical order.

Grammarly

Grammarly · AI writing assistant that works across apps and sites

40 million people

The everyday writing layer for the whole company.

Grammarly says it is trusted by 50,000 organizations and 40 million people, the largest user base on this list. It was founded in 2009 by Max Lytvyn, Alex Shevchenko and Dmytro Lider, and it works across more than 1 million apps and websites, so suggestions appear in email, documents and chat without switching tools. For business content, teams can upload a company style guide, turn the company voice into a tone profile, and use generative AI to create first drafts and outlines that reflect that voice. Its AI writing agents help with tone and rewriting. Grammarly claims organizations that deploy it save an average of $5,000 per employee per year. Enterprise accounts get SAML single sign-on and SCIM provisioning. In 2025 it acquired Coda and Superhuman Mail.

Best forCompanies that want every employee writing clearly and on brand, in the apps they already use

Skip it ifYou want an AI that drafts whole campaigns or long articles for you

Source: www.grammarly.com/

Copy.ai

CopyAI, Inc. · AI-native go-to-market (GTM) platform

17 million users

Best for content that feeds a sales pipeline.

Copy.ai says it is trusted by 17 million users at leading companies, with customer logos including Siemens, Lenovo, ServiceNow and Juniper Networks. It calls itself the first AI-native GTM platform, so content creation sits inside workflows that also generate pipeline and run campaigns. It is model-agnostic, working with OpenAI, Anthropic, Gemini and Perplexity models, and connects to 2,000+ integrations. It holds SOC 2 and GDPR credentials and supports SSO. On its homepage, Lenovo's head of global digital experience says automating content work that used to go to agencies saved the company $16 million in a year, and Juniper's former CMO credits it with 5x more meetings. It is a platform for teams rather than a personal editor.

Best forSales and marketing teams that want AI content inside wider GTM workflows

Skip it ifYou just want a simple editor for your own writing

Source: www.copy.ai/

Wordtune

AI21 Labs · AI rewriting, summarizing and grammar assistant

10M+ users

The best-value rewriter for individuals.

Wordtune says it has 10M+ users around the world, and that users have chosen 782M rewrite suggestions. It is made by AI21 Labs, and it focuses on improving what you have already written: paraphrasing, rewriting, tone, grammar and summaries, rather than generating whole campaigns. Its Chrome extension is rated 4.7/5 and it supports 10 languages for translation. Pricing is low: the free Basic plan includes 10 rewrites and AI suggestions per day and 3 AI summarizations per month, Advanced is $6.99 a month and Unlimited is $9.99 a month (less when billed annually), with unlimited rewrites and summaries on the top plan. That makes it an easy add for individuals who write a lot of business email.

Best forProfessionals who write their own emails and documents and want better phrasing fast

Skip it ifYou need brand governance across a large marketing team

Source: www.wordtune.com/

Jasper

Jasper · AI platform for enterprise marketing teams

125k+ global customers

The marketing team's content engine.

Jasper says it has 125k+ global customers, including 900+ enterprise customers, and serves 20% of the Fortune 500. It pitches itself as applied AI for enterprise marketing: its homepage describes 100+ specialized AI agents, campaign localization in 27 languages and image pipelines, all built to keep content on brand. Unlike a writing assistant that polishes one document, Jasper is set up for marketing teams that need to produce many campaign assets from a shared brand voice. It has enterprise security with SOC 2, and it cites a Forrester study in which enterprises using Jasper achieved 342% ROI. Customer stories on its site include 3x content production at Avery Dennison. It offers a free trial alongside demos.

Best forMarketing teams producing on-brand campaigns at scale

Skip it ifYou are a solo writer on a tight budget

Source: www.jasper.ai/about

WRITER

WRITER · Enterprise AI platform for marketing and revenue teams

500+ enterprise deployments

The enterprise pick for governed AI writing.

WRITER says its methodology is built on 500+ enterprise deployments, and its customer logos include Vanguard, Salesforce, Dropbox, e.l.f. and H&R Block. It was launched in 2020 and is headquartered in San Francisco, and it describes itself as the AI platform built for the world's leading marketing and revenue teams. It runs on its own models, including Palmyra X6, which it says is built for agentic work, and it focuses on turning company knowledge and market signals into content and customer journeys. On its homepage, Vanguard reports 57% faster time to market. Its homepage is aimed at large companies, with a demo request front and center. Named customers on its company page include H&R Block, Keurig Dr. Pepper and Qualcomm.

Best forLarge enterprises that need governed, agentic AI content across teams

Skip it ifYou are a small business or a single writer

Source: writer.com/

Anyword

Anyword · AI copywriting with performance prediction

No user count published

Best for copy that has to convert.

Anyword does not publish a user count, so it ranks among the tools without a number. Its angle is performance: it claims it makes AI content perform 76% better by scoring copy with performance predictions trained on marketing data, then helping you boost the weaker lines. That suits ads, emails, social posts and landing pages, where small wording changes move clicks. Plans start with Starter at $49 a month ($39 billed yearly) for one seat, and Data-Driven at $99 a month ($79 yearly) for three seats, with Business and Enterprise priced on request. Every plan includes unlimited words generated. Starter adds a Blog Wizard with plagiarism checker, and Enterprise offers SSO and a private language model. A 7-day free trial is capped at 2,500 words.

Best forPerformance marketers who want to know which ad or email copy will work before it runs

Skip it ifYou mainly write long reports or internal documents

Source: www.anyword.com/pricing

HyperWrite

OthersideAI · AI writing assistant with autocomplete and research

No user count published

Best autocomplete for everyday business writing.

HyperWrite does not publish a user count, so it ranks among the tools without a number. Made by OthersideAI, it calls itself an AI writing assistant with autocomplete, web search and citations. Its TypeAhead feature offers context-aware sentence completions as you type, mainly through its Chrome extension in Gmail and Google Docs, and its Personas feature trains the AI to write in your own style. It also has a rewriter, an email responder and a research mode that searches scholarly articles and returns cited content. Premium costs $19.99 a month ($16 billed annually) for 250 AI messages and 3 custom personas; Ultra is $44.99 a month ($29 annually) for unlimited messages and 10 personas.

Best forIndividuals who want AI help inside Gmail, Docs and the browser

Skip it ifYou need team-wide brand controls

Source: www.hyperwriteai.com/

Notion AI

Notion · AI writing and agents built into the Notion workspace

No Notion AI count published

Best if your company already runs on Notion.

Notion does not publish a separate user count for Notion AI, so it ranks among the tools without a number (Notion itself says it has 100M users, but that covers the whole workspace, not the AI). Its AI lives inside your pages: Notion Agent can generate and edit docs, chat about anything and autofill databases, using context from Notion, connected apps and the web, and AI Meeting Notes writes up meetings and follow-ups. Full AI access comes with the Business plan at $20 per member per month; the Free and Plus ($10) plans include only a limited trial. Enterprise adds zero data retention with AI model providers. For business writing, the advantage is that drafts are written alongside the company knowledge they draw on.

Best forTeams that already keep their docs and wikis in Notion

Skip it ifYou do not use Notion, or you need a dedicated marketing copy tool

Source: www.notion.com/pricing

ProWritingAid

Orpheus Technology · Grammar checker and style editor

No user count published

The deepest style editor, with a one-time price.

ProWritingAid does not publish a user count, so it ranks among the tools without a number. It is an editor first: beyond grammar, spelling and punctuation checks, Premium includes 25+ writing analysis reports covering readability, clarity and style, which is useful for long reports, proposals and white papers. It also offers rephrasing, unlimited on paid plans, and works in Google Docs, Microsoft Office, browsers and its own desktop editor. Pricing is flexible: Premium is $30 billed monthly, $10 a month billed yearly or $399 one-time, and Premium Pro is $36 monthly, $12 a month yearly or $699 one-time. The free plan checks 500 words per report. Its homepage now leans toward book writers, so business users get the editor rather than the story tools.

Best forWriters who want deep style feedback on long documents

Skip it ifYou want AI to draft content from scratch

Source: prowritingaid.com/pricing

Rytr

Rytr · AI writing and relationship assistant

No user count published

The budget pick for quick drafts.

Rytr does not publish a user count, so it ranks among the tools without a number. It now has two parts: Create, for writing in your voice, and Engage, an AI relationship manager that tracks clients and drafts follow-ups for your approval. Create turns a rough idea into an email, post, ad or page, with 40 use cases, your own voice or one of 22 tones, and 38 languages, producing up to three drafts at once. A browser extension brings it into Gmail, Slack and LinkedIn. It is one of the cheapest options here: the free plan includes 10,000 characters a month, Lite is $9 a month with unlimited characters, Personal is $19 and Pro is $49, with 20% off for yearly billing.

Best forFreelancers and small businesses that want cheap AI drafts and follow-ups

Skip it ifYou need enterprise security and admin controls

Source: rytr.me/

Questions people ask

What is the best AI writing tool for business?

Grammarly is the most widely used, trusted by 40 million people and 50,000 organizations, with company style guides and brand tone profiles. Jasper and WRITER are built more specifically for enterprise marketing teams.

Which AI writing tool is best for marketing copy?

Jasper (125k+ customers, 100+ specialized AI agents) for on-brand campaigns, and Anyword for ad and email copy, since it scores copy with performance predictions before it runs.

What is the cheapest AI writing tool?

Wordtune and Rytr both have free plans. Wordtune Advanced is $6.99 a month and Rytr Lite is $9 a month with unlimited characters.

Is there an AI writing tool built into a workspace?

Notion AI writes and edits docs inside Notion pages; full access comes with the Business plan at $20 per member per month.

How were these tools ranked?

By the number of users, customers or enterprise deployments each vendor publishes on its own website. These are the companies' own claims; tools with no published count are ranked last.

How we ranked

Users, customers or enterprise deployments each vendor says it has, as published on its own website (read November 2026). Counts are each company's own claims and are measured differently, so treat them as a guide to scale, not an audit. Anyword, HyperWrite, Notion AI, ProWritingAid and Rytr publish no count, so they rank last, in alphabetical order. Every number on this page comes from the source linked under each pick, and every photo shows the actual product. Brands can't pay to be on this list.

List source: www.grammarly.com/ · Updated 2026-11-13