The best AI for writing in 2026: 10 tools compared
The best AI writing tools for drafting, editing, grammar, copywriting and fiction, with free options and who each one suits.
- Best for drafting anything: Claude. Natural, well-structured writing that follows tone and style instructions closely.
- Best all-round assistant: ChatGPT. Versatile for drafts, rewrites, research and brainstorming, with a strong free plan.
- Best for grammar and clarity: Grammarly. Real-time corrections and rewrites inside almost every app you write in.
- Best for long-form editing: ProWritingAid. In-depth style reports on pacing, repetition and readability, popular with authors.
- Best for marketing copy: Jasper. Brand voice, campaign templates and team workflows for marketing content.
- Best for fiction: Sudowrite. Built for novelists, with tools for describing scenes, brainstorming and expanding drafts.
There is no single best AI for writing, because "writing" covers very different jobs: drafting a blog post, fixing grammar, writing ads or getting unstuck on chapter twelve.
Most writers end up with two tools: a general assistant for drafting and an editor for polishing. Here are the strongest options for each job.
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Assistants vs editors
AI assistants such as Claude and ChatGPT generate and rewrite text from your instructions. AI editors such as Grammarly and ProWritingAid improve text you have already written. Copywriting tools such as Jasper add templates, brand voice and team features on top of an AI model.
How to get better writing from AI
- Give context: audience, purpose, tone and length
- Paste an example of writing you like
- Ask for an outline first, then draft section by section
- Edit the draft yourself, then use an AI editor for a final pass
- Fact-check names, numbers and quotes
The best AI writing tools
| # | Tool | Best for | Price | Score |
|---|---|---|---|---|
| 1 | Claude | Writers | From $20/mo | 9.5 |
| 2 | ChatGPT | Everyone | From $20/mo | 9.5 |
| 3 | Grammarly | Students | From $12/mo | 9.2 |
| 4 | ProWritingAid | Authors | Free plan | 8.2 |
| 5 | Jasper | Marketing teams | Free trial | 8.4 |
| 6 | QuillBot | Students | Free plan | 8.5 |
| 7 | Sudowrite | Novelists | From $10/mo | 8.2 |
| 8 | Wordtune | Professionals | Free plan | 7.8 |
| 9 | Linguix | Sales teams | Free plan | 7.3 |
| 10 | Trinka | Researchers | Free plan | 7.2 |
Claude
Anthropic's AI assistant known for writing, reasoning and coding. Claude is Anthropic's AI assistant, widely used for long-form writing, document analysis, coding and research. It supports large file uploads, projects, artifacts and integrations with tools like Google Workspace.
Why we like it: Natural, high-quality writing style. Strong at coding and long-document analysis.
Watch out for: Usage limits on busy plans.
ChatGPT
OpenAI's all-purpose AI assistant for chat, writing and analysis. ChatGPT is OpenAI's flagship conversational assistant, used for writing, brainstorming, coding, data analysis, image generation and web search. It offers a free tier plus paid plans with access to more capable models, deep research and agent features.
Why we like it: Extremely versatile across tasks. Large ecosystem of custom GPTs and integrations.
Watch out for: Best models and limits are behind paid plans.
Grammarly
AI writing assistant for grammar, clarity and tone everywhere. Grammarly checks grammar, spelling, clarity and tone across browsers, desktop apps and mobile keyboards. Its generative AI features help draft, rewrite and personalise text, with plagiarism and AI-detection tools on paid plans.
Why we like it: Works almost everywhere you type. Excellent grammar and clarity suggestions.
Watch out for: Best suggestions require Pro.
ProWritingAid
In-depth grammar checker and style editor for writers. ProWritingAid is a grammar checker and style editor with detailed reports on readability, pacing, repetition and more. It is particularly popular with fiction and non-fiction authors and integrates with Word, Google Docs and Scrivener.
Why we like it: Deep reports ideal for long manuscripts. Lifetime licence option.
Watch out for: Interface can feel busy.
Jasper
Brand-voice AI content platform for marketing teams. Jasper is an AI content platform built for marketing teams, with brand voice, style guides and campaign tools. It helps generate on-brand blog posts, ads, emails and social content at scale.
Why we like it: Strong brand-voice controls. Built for team collaboration.
Watch out for: Expensive for individuals.
QuillBot
Popular AI paraphraser, grammar checker and summariser. QuillBot is a writing toolkit best known for its paraphrasing tool, plus grammar checking, summarising, citation generation, translation and AI detection. It is widely used by students and non-native English writers.
Why we like it: Best-known paraphrasing tool. Lots of tools in one subscription.
Watch out for: Free paraphraser has word limits.
Sudowrite
AI writing partner built for novelists and fiction writers. Sudowrite is an AI tool designed specifically for creative writing, helping authors brainstorm, describe, expand scenes and draft chapters. Its Story Engine helps plan and write novels from outline to prose.
Why we like it: Built specifically for fiction. Great for overcoming writer's block.
Watch out for: Credit-based plans can run out.
Wordtune
AI rewriting assistant from AI21 Labs. Wordtune suggests alternative phrasings, tones and lengths for your sentences as you write. It also summarises articles and documents, and works in browsers, Google Docs and Word.
Why we like it: Natural-sounding rewrites. Works where you write.
Watch out for: Free plan limits daily rewrites.
Linguix
AI writing assistant for sales and marketing teams. Grammar, style and rewriting assistant aimed at business communication. Includes text shortcuts and templates for sales and marketing teams.
Our take: A lighter, cheaper Grammarly alternative aimed at sales and marketing teams, with handy text shortcuts.
Why we like it: Works across the web via extension. Templates speed up repetitive emails.
Watch out for: Smaller than Grammarly.
Trinka
Grammar checker for academic and technical writing. Trinka is a grammar and language tool tuned for academic and technical writing, with subject-specific style checks. It includes consistency checks, citation checking and plagiarism detection.
Our take: Built for academic and technical writing, with checks tuned to research papers and formal documents.
Why we like it: Tuned for scientific writing. Catches field-specific issues.
Watch out for: Less useful for casual writing.
How we chose
We shortlisted tools by reputation, reader interest and real-world usefulness, then scored each on output quality, ease of use, features and value. Read how we review for details.
FAQ
What is the best free AI for writing?
ChatGPT, Claude and Gemini all have capable free plans for drafting. For grammar, Grammarly and LanguageTool have useful free versions.
Is ProWritingAid better than Grammarly?
ProWritingAid gives deeper style reports and suits long-form writers and authors. Grammarly is quicker and works in more apps, which suits everyday business writing.
Can I publish AI-written content?
Yes, but edit it. Search engines reward helpful, accurate content regardless of how it was written, and readers notice generic AI text.
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