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Best AI Writing in 2026

Compare AI writing and content generation tools for blogs, ads, and emails.

18 tools reviewed · Last updated April 2026

At a glance

AI writing tools help you draft, edit, and polish text at speed — from blog posts and marketing copy to product descriptions, emails, and long-form content. The best tools combine a capable language model with domain-specific templates, brand voice controls, and collaboration features that plain chatbots lack.

General chat assistants can write, but dedicated writing tools are optimised for the shape of real content work: campaign briefs, SEO-aware articles, A/B test variations, and style consistency across a team. Choosing a focused tool pays off when you produce content regularly.

The 18 AI Writing we recommend

1

Jasper AI

An AI writing tool built for marketing. Rapidly generates marketing content including blog posts, ad copy, and social media posts.

★★★★★4.1
Creator $49/mo (1 seat)
2

Notion AI

An AI assistant integrated into Notion. Seamlessly performs document creation, summarization, translation, and brainstorming within the Notion workspace.

★★★★★4.2
Add-on to Notion paid plans at $10/member/mo
3

Grammarly

An AI-powered English writing assistant. Provides grammar and spell checking along with style improvement, tone adjustment, and plagiarism detection.

★★★★★4.4
Free (basic grammar and spell check)
4

Writesonic

An AI-powered content writing platform. Rapidly generates diverse marketing content including blog posts, ad copy, and product descriptions.

★★★★★4
Free plan (10,000 words/mo)
5

Copy.ai

An AI copywriting tool for marketing. Rapidly generates marketing content including ad copy, social media posts, and email copy using AI.

★★★★★4
Free (2,000 words/mo)
6

Rytr

A cost-effective AI writing assistant with 40+ templates and 30+ language support. Specialized in short-form content creation.

★★★★★3.8
Free plan (10,000 characters/month)
7

Wordtune

An AI writing assistant from AI21 Labs specialized in text rewriting and improvement. Instantly transforms existing text into better expressions.

★★★★★4
Free plan (10 rewrites/day)
8

Anyword

An AI copywriting tool featuring predictive performance scores based on marketing data. Predicts ad copy effectiveness before publishing.

★★★★★4.1
Starter $39/month (100+ templates)
9

Frase

An AI writing platform specialized in SEO and GEO (Generative Engine Optimization). Handles everything from SERP analysis to content generation and optimization.

★★★★★4.2
Starter $39/month annual (1 user, 10 articles/month)
10

Writer

An enterprise AI writing platform. A corporate text generation and management tool focused on brand guideline compliance and security.

★★★★★4.1
Team $18/user/month
11

Hypotenuse AI

An AI content generation tool specialized for e-commerce. Automates bulk product description generation, SEO blog creation, and catalog management.

★★★★★4
Starter $29/month (25,000 words, 200 images)
12

Cohesive AI

An AI content editor with 100+ templates. Rapidly generates and edits diverse content including blogs, social media posts, and scripts.

★★★★★3.7
Free plan (10,000 words/month)
13

Sudowrite

An AI tool specialized for fiction and creative writing. Powerfully supports story creation.

★★★★★4
Hobby & Student $10/month
14

TextCortex

A multilingual AI writing assistant. Generate content in 25+ languages.

★★★★★3.9
Free plan (daily limit)
15

Catchy

One of Japan's largest AI writing assistant tools. Automatically generates ad copy, blog posts, social media content, and more with over 140 templates.

★★★★★3.9
Free plan (10 credits/month)
16

Value AI Writer byGMO

An SEO article generation AI writing tool by GMO Digirock. Automatically generates SEO-optimized articles from just a keyword input.

★★★★★3.8
Entry ¥1,650/mo (5 articles)
17

文賢

An AI-powered Japanese text proofreading and editing tool. Automatically checks for typos, expression improvements, and readability across 100+ check items.

★★★★★4
¥2,178/mo (tax included) — no initial fees
18

Jenni AI

An AI writing tool specialized for academic papers and reports. Supports researchers and students with automatic citation insertion, plagiarism checking, and academic style suggestions.

★★★★★4.1
Free (200 words/day)

How to choose the right writing

Use these five criteria to narrow the field from the full list to a shortlist of one or two.

1Evaluate output against your own brand voice

Generic tone is the biggest weakness of writing AI. Paste three example paragraphs of your brand voice into each candidate and judge how well the output matches.

2Check SEO and structure support

For blog content, look for tools that handle headings, meta descriptions, internal linking suggestions, and keyword density without manual prompting.

3Favour collaboration features

Real-time editing, shared templates, and role-based permissions matter if more than one person writes. Single-user tools become painful fast in a team setting.

4Price against word volume, not seat count

Per-seat pricing sounds simple but penalises teams with occasional users. Tools with usage-based pricing are often more flexible.

5Demand transparent plagiarism handling

Use tools that disclose whether outputs are run through plagiarism checks, and what the risk of near-duplicate content is.

Side-by-side comparison

ToolRatingStarting pricePlatforms
Jasper AI4.1/5Creator $49/mo (1 seat)Web, Chrome拡張, API
Notion AI4.2/5Add-on to Notion paid plans at $10/member/moWeb, macOS, Windows
Grammarly4.4/5Free (basic grammar and spell check)Web, Chrome拡張, macOS
Writesonic4/5Free plan (10,000 words/mo)Web, Chrome拡張, API
Copy.ai4/5Free (2,000 words/mo)Web, Chrome拡張, API
Rytr3.8/5Free plan (10,000 characters/month)Web, Chrome拡張
Wordtune4/5Free plan (10 rewrites/day)Web, Chrome拡張, Google Docs
Anyword4.1/5Starter $39/month (100+ templates)Web, Chrome拡張, API
Frase4.2/5Starter $39/month annual (1 user, 10 articles/month)Web, API, WordPress連携
Writer4.1/5Team $18/user/monthWeb, Chrome拡張, API
Hypotenuse AI4/5Starter $29/month (25,000 words, 200 images)Web, Shopifyアプリ, API
Cohesive AI3.7/5Free plan (10,000 words/month)Web
Sudowrite4/5Hobby & Student $10/monthWeb
TextCortex3.9/5Free plan (daily limit)Web, Chrome extension
Catchy3.9/5Free plan (10 credits/month)Web
Value AI Writer byGMO3.8/5Entry ¥1,650/mo (5 articles)Web
文賢4/5¥2,178/mo (tax included) — no initial feesWeb
Jenni AI4.1/5Free (200 words/day)Web

Frequently asked questions

Will AI writing tools detect as AI-generated?+

Often, yes — AI-detection tools have improved. If you publish commercially, treat AI output as a first draft and edit substantively so the finished text reflects your own voice.

Can AI writing replace a copywriter?+

For high-stakes campaign and brand work, no. For high-volume tactical copy — product descriptions, email variants, SEO refreshes — AI can absorb 70–90% of the workload if paired with human review.

Is AI-written content ranked by Google?+

Google's guidance is that AI-assisted content can rank if it is helpful, accurate, and written with the reader in mind. Low-effort, scaled AI output tends to be demoted. See Google's guidance on AI content for the latest rules.

Are there free AI writing tools?+

Yes — many tools offer a free tier sufficient for occasional drafting. Heavy use pushes you into paid plans that unlock longer outputs and brand-voice controls.

All AI Writing

Jasper AINotion AIGrammarlyWritesonicCopy.aiRytrWordtuneAnywordFraseWriterHypotenuse AICohesive AISudowriteTextCortexCatchyValue AI Writer byGMO文賢Jenni AI

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