Best AI writing tools in 2026
AI writing tools draft, rewrite and adapt text for marketing, sales and everyday work. In 2026 the best-known names have moved in different directions. Jasper focuses on marketing teams, with brand controls and pre-built agents. Copy.ai, now owned by Fullcast, has become a go-to-market platform with a low-cost team chat plan and credit-based workflows. Writesonic centers on AI search visibility: it tracks how brands appear in ChatGPT, Gemini and Google AI Overviews and writes articles to close the gaps.
When you compare them, look past word counts. Check how each tool learns your brand voice, how many seats the price includes, whether the API or integrations you need sit on a custom plan, and whether you can try it before you pay. Prices on these pages come from each vendor's own pricing page. Plans change often, so confirm the current price before you buy.
Our ranking
AI platform for marketing teams, with brand voice controls, a content canvas and 100+ pre-built marketing agents.
AI search visibility platform that tracks your brand in ChatGPT, Gemini and Google AI Overviews and writes SEO articles.
Go-to-market AI platform with shared team chat across several AI models and credit-based sales and marketing workflows.
AI writing assistant that checks grammar, clarity and tone as you type, in more than a million apps and websites.
Compare: vs Quillbot · vs ProWritingAid · vs LanguageTool · vs Hemingway Editor
AI paraphraser and writing assistant with a grammar checker, humanizer, AI detector and plagiarism checker.
Compare: vs Grammarly · vs ProWritingAid · vs LanguageTool
AI writing app for fiction, with a Story Bible per project, the fiction-trained Muse model and AI editorial feedback.
Editing assistant for storytellers, with a grammar checker, 25+ line-editing reports and AI feedback on manuscripts.
Compare: vs Grammarly · vs Quillbot · vs Hemingway Editor
Multilingual grammar, spelling and style checker with an AI paraphraser, shared style guides and an open-source core.
Compare: vs Grammarly · vs Quillbot
Readability editor that flags dense sentences and passive voice, with paid AI rewrites, grammar fixes and tone changes.
Compare: vs Grammarly · vs ProWritingAid
Browser-based novel writing app with a Codex story bible, planning views and AI through the provider you connect.
Top 5 compared
| Feature | Jasper | Writesonic | Copy.ai | Grammarly | Quillbot |
|---|---|---|---|---|---|
| Brand voice | Yes · 2 voices on Pro, unlimited on Business | Yes · Writing Styles: 1, 5 or 10 by plan | Yes · Multiple Brand Voices, plus Infobase | Yes · Brand tones: 1 on Pro, unlimited on Enterprise; not on Free | Partial · Premium Custom modes set a paraphrasing style from a guiding word such as 'friendly'; no brand voice profiles |
| SEO mode | Yes · SEO/AEO agents; GEO agents on Business | Yes · SEO and content AI agent, site audits | Partial · SEO articles via Workflows (credit plans) | No · No SEO or keyword features listed on any plan | No · No SEO mode or keyword research; only single-purpose generators for meta descriptions, SEO titles and SEO meta tags |
| Plagiarism check | Add-on · Copyscape add-on; cost not listed | Yes · Built into the AI Document Editor and Chatsonic; each check uses credits. Docs (Mar 2025) name no plans or cost; the current pricing page does not list it | Partial · Copyscape check as a Workflow action | Yes · In the app on Pro and Enterprise, not Free; also a web checker; 16B+ web pages and ProQuest academic papers | Yes · Premium only: 25,000 words a month; extra packs from $2.45 for 6,250 words |
| Templates | Yes · 100+ pre-built marketing agents | Yes · 50+ templates in the AI Document Editor (social posts, product descriptions, newsletters); older ones still listed. Docs date from Mar 2025; current pricing lists none | Partial · Prompt library; old templates discontinued | Partial · Snippets only: shared, on-brand messaging templates on Pro and Enterprise | Yes · More than 25 single-purpose generators (email, cover letter, copywriter, captions, titles, job descriptions); design templates too |
| Team seats | Partial · Pro is 1 seat; teams need Business | Yes · 1 to 3 users; Basic/Growth up to 5 at $50/user/mo | Yes · 5 seats on Chat; 75 to 200 on larger plans | Yes · Pro 1 to 149 seats; Enterprise unlimited members | Yes · Premium is 1 user; Team Plans from 2 seats, $69.95-$89.95 per seat a year |
| API | Partial · Business plan only | Yes · GEO API; plan access not listed | Partial · Enterprise plan only | Partial · Enterprise and Education admins only: analytics, license, writing score, AI and plagiarism detection (beta) APIs | No · No B2B or B2C API, per the help center |
| Word limits | Yes · No cap listed; agents use credits on Business | Yes · 15, 25 or 50 AI articles a month; Growth can add 20 for $100/mo | Yes · Unlimited in Chat; Workflows use credits | Yes · AI prompts: 100/mo Free, 2,000/member/mo Pro, unlimited Enterprise | Yes · Paraphraser: 125 words at a time free, no limit on Premium; Summarizer: 1,200 or 6,000 words |
| Free trial | Yes · 7 days on Pro | Yes · No credit card needed | No · No free plan or trial; 5-day refund window | Yes · Free plan; Pro trials offered periodically (a 7-day trial on the US plans page captured 2026-10-13) | No · No Premium trial listed; free plan instead; fees nonrefundable unless the law requires |
| Integrations | Yes · Google Docs, Word, Webflow, Slack, Chrome; Zapier on Business | Yes · WordPress, Search Console; GA4, Looker on Enterprise | Yes · Zapier, Google Docs, Notion; 20+ on Enterprise | Yes · 1M+ apps and sites: Google Docs, Word, Gmail, Outlook, Slack, Salesforce, Jira and more | Yes · Chrome (incl. Google Docs), Edge, Safari, Word add-in; macOS, Windows, iOS and Android apps |