Best AI Writing Apps in 2026

The best AI writing app depends less on which model is "smartest" and more on where your writing happens and what kind of writing it is. A novelist, a marketing team, a student polishing an essay and a consultant drafting client reports all need different things, and the tool that suits one of them can frustrate another.

This guide compares nine AI writing apps that are worth considering in 2026, grouped by the job they do best. For each one you will find current pricing, what the free plan really includes, where the app is strong, where it falls short and who should skip it. Prices were checked against official pricing pages in October 2026 and are shown in US dollars.

Editorial independence: Sitebard AI may earn a commission if you buy through some links on this site. That never affects which products we include or how we rank them.

The best AI writing apps at a glance

• ChatGPT: best overall AI writing app for most people
• Claude: best for long-form writing and keeping a consistent voice
• Grammarly: best for editing, grammar and tone in the apps you already use
• Google Gemini (Google AI Pro): best for people who write in Google Docs and Gmail
• Microsoft Copilot in Word: best value for Microsoft 365 households
• Jasper: best for marketing teams that need a shared brand voice
• Sudowrite: best for fiction and long creative projects
• QuillBot: best low-cost option for paraphrasing and student writing
• Notion AI: best for teams that already write and plan inside Notion

Quick comparison

App	Best for	Free plan	Paid plans from	Main limitation
ChatGPT	All-round drafting, brainstorming, rewriting	Yes	$8/mo (Go, US)	Generic tone unless you brief it well
Claude	Long-form drafts, editing, voice matching	Yes, with session limits	$17/mo billed yearly ($20 monthly)	Free plan limits reset every five hours
Grammarly	Proofreading, tone, rewrites everywhere you type	Yes	$12/mo billed yearly ($30 monthly)	Not built for drafting long pieces from scratch
Gemini (Google AI Pro)	Writing inside Docs and Gmail	Gemini app only	$19.99/mo	Best features tied to Google's ecosystem
Copilot in Word	Drafting and rewriting in Word	Limited free Copilot chat	$9.99/mo (Microsoft 365 Personal)	Usage allowances are not spelled out in detail
Jasper	Marketing teams and brand voice	7-day trial (card required)	$59/seat/mo billed yearly	Expensive for individuals
Sudowrite	Fiction, story planning, revision	Small trial, no card	$10/mo billed yearly	Credit system takes getting used to
QuillBot	Paraphrasing, summarizing, essays	Yes, with word and mode limits	$8.33/mo billed yearly	Rewrites can drift from your meaning
Notion AI	Writing inside a team workspace	Limited trial	$20/member/mo (Business)	Full AI needs the Business plan

How we evaluated these apps

This is a research-based comparison, not a lab test. We reviewed each product's official pricing pages, help-center documentation, feature pages and privacy documentation, and compared the products against criteria that matter for real writing work:

• Writing quality and control: how well the app follows instructions, holds a tone and handles revision requests.
• Workflow fit: whether it works where you already write (a browser, Word, Google Docs, a manuscript, a team wiki).
• Feature depth for the core job: for example story planning for fiction, brand voice for marketing, or tone detection for editing.
• Free plan usefulness: whether you can do meaningful work without paying.
• Value for money: price relative to what the paid plan adds.
• Privacy controls: whether you can stop your drafts from being used to train models.

Rankings reflect suitability for a specific use case rather than a single overall score. A tool that ranks lower on this page can still be the right choice for you if its use case matches yours.

1. ChatGPT: best overall AI writing app

ChatGPT is the most flexible writing tool on this list. It can brainstorm angles, outline, draft, rewrite for a different audience, shorten, expand, adjust tone and explain its own edits, and it handles everything from a two-line email to a long report. For most people who want one AI writing app rather than several, it is the sensible default.

Pricing: ChatGPT has a free plan. Paid individual plans are Go ($8 per month in the US; OpenAI localizes Go pricing in some markets), Plus ($20 per month) and Pro, which OpenAI now sells in tiers starting at $100 per month. See current ChatGPT plans.

What the free plan gives you: OpenAI lists unlimited text chats on the free plan, subject to abuse guardrails, with separate limits on file uploads, image creation and deep research. Free users get OpenAI's standard model rather than its most advanced reasoning models. For everyday drafting and editing, the free plan is usable; heavier users and anyone uploading lots of source material will feel the limits.

Strengths

• Handles almost any writing format competently, from social posts to technical explanations.
• Projects let you keep briefs, files and related chats together so you are not re-explaining context.
• Large ecosystem of integrations and custom GPTs for repeat tasks.

Limitations

• Without a clear brief, output drifts toward a recognizable, generic register.
• Like any large language model, it can state wrong facts confidently, so claims need checking (see our explainer on AI hallucinations).
• Exact message caps on paid plans are not published and can tighten at busy times.

Choose ChatGPT if you want one versatile tool for many kinds of writing. Skip it if your main need is fiction-specific planning (Sudowrite) or line-by-line proofreading in every app you use (Grammarly).

2. Claude: best for long-form writing and voice

Claude, from Anthropic, is a strong choice when the writing is long, nuanced or needs to sound like a specific person. It follows detailed style instructions closely, keeps a consistent tone across long documents, and is good at editing existing drafts without flattening them. Writers who give it a short voice brief and a sample of their own prose tend to get output that needs less rework. Our guide to using Claude for writing walks through that setup.

Pricing: Free, Pro ($20 per month, or $17 per month billed annually at $200 a year) and Max (from $100 per month, monthly billing only). See current Claude plans.

What the free plan gives you: chat on web, desktop and mobile, web search, file creation and up to five Projects. Usage is session-based and resets every five hours, and Anthropic does not publish a fixed message count because longer conversations and heavier features use more of the allowance.

Strengths

• Long, coherent drafts that hold structure and tone.
• Careful, specific editing feedback rather than wholesale rewrites.
• Projects keep style guides and reference material attached to every conversation.

Limitations

• The free plan's rolling limits can interrupt a long writing session.
• Fewer built-in creative extras (such as image generation) than ChatGPT.
• Like every model here, facts and citations still need human verification.

Choose Claude if you write long articles, reports, proposals or scripts and care about voice. Skip it if you mainly need quick grammar fixes across many apps, where Grammarly is the better fit.

ChatGPT vs Claude for writing: which should you pick?

Both are excellent general writing assistants and the honest answer is that many writers use both. ChatGPT is the broader toolkit: more formats, more integrations and more creative extras. Claude tends to be the stronger editor and long-form drafter, and is often preferred when tone and consistency matter more than breadth. Their individual paid plans start at the same $20 monthly price, so the decision is about fit, not cost. Our Claude Pro vs ChatGPT Plus comparison covers plan details, and the wider ChatGPT vs Claude vs Gemini comparison adds Google's assistant to the picture.

3. Grammarly: best for editing and polishing

Grammarly is the tool on this list that works where you already type: email, browsers, documents and many desktop apps. Its strength is the last mile of writing, catching errors, flagging unclear sentences, adjusting tone and suggesting rewrites, rather than producing a long first draft. Grammarly is now part of the Superhuman suite of products, but the Grammarly plans remain available on their own.

Pricing: Free, or Pro at $12 per member per month billed annually ($30 billed monthly). See current Grammarly plans.

What the free plan gives you: core spelling and grammar checks plus a monthly allowance of generative AI prompts (100 at the time of writing). Pro adds full-sentence rewrites, tone adjustments and a much larger prompt allowance.

Strengths

• Works across many apps and websites, so you do not have to copy text into a chatbot.
• Reliable proofreading and clarity suggestions for everyday professional writing.
• Business plans include admin and security controls for teams.

Limitations

• Not designed for researching or drafting long pieces from a blank page.
• Monthly billing is much more expensive than the annual rate.
• Suggestions can push writing toward a uniform "corporate" style if accepted uncritically.

Choose Grammarly if you write a lot of email, documents and messages and want polish without changing tools. Skip it if you need help generating content rather than refining it. If you are weighing it against a paraphrasing tool, see our Grammarly vs QuillBot comparison.

4. Google Gemini: best for Google Docs and Gmail

If your writing lives in Google Docs and Gmail, Gemini's biggest advantage is that it is already there. The Google AI Pro plan puts Gemini inside Gmail, Docs and other Google apps, so you can draft, rewrite and proofread without moving text between windows. The standalone Gemini app is also a capable general writing assistant.

Pricing: the Gemini app has a free tier. Google AI Pro costs $19.99 per month in the US and includes Gemini in Gmail and Docs, higher usage limits and additional Google storage. See current Google AI plans.

Strengths

• Writing help inside the documents and inbox you already use.
• Bundled storage makes the subscription better value if you need it anyway.
• Strong for summarizing long email threads and documents before you reply.

Limitations

• Much of the value depends on being a Google Workspace or Gmail user.
• Some features roll out by region first; Google lists AI Overviews in Gmail as US-only, for example.

Choose Gemini if you spend your working day in Google's apps. Skip it if you work mainly in Microsoft Word or a dedicated writing tool. Our guide to Gemini in Google Workspace shows how to use it day to day.

5. Microsoft Copilot in Word: best value for Microsoft 365 users

For people who already pay for Microsoft 365, Copilot in Word is the lowest-friction way to get AI drafting and rewriting. Microsoft 365 Personal now includes Copilot in the desktop Word app alongside Excel, PowerPoint and Outlook, so you can draft from a prompt, rewrite a passage for clarity or tone, and summarize long documents in the editor you already know.

Pricing: Microsoft 365 Personal is $9.99 per month or $99.99 per year for one person, including 1 TB of cloud storage. Business and enterprise Copilot plans are priced separately. See current Copilot plans for individuals.

Strengths

• Strong value if you would pay for Office and cloud storage anyway.
• Works inside Word's familiar formatting, review and track-changes tools.

Limitations

• Microsoft describes Copilot usage in consumer plans in general terms rather than publishing precise limits.
• Less useful if you do not already work in Word.

Choose Copilot in Word if Word is where your documents live. Skip it if you write mostly in a browser or in Google Docs. For a broader view, see ChatGPT vs Microsoft Copilot.

6. Jasper: best for marketing teams

Jasper is built for marketing departments rather than individual writers. Its core value is consistency at scale: a shared brand voice and style rules that apply across everyone's output, templates for campaign assets, and higher-tier features such as agents for marketing workflows and API access. For a team producing a steady stream of on-brand content, that shared layer is the reason to pay for Jasper instead of giving everyone a general chatbot.

Pricing: Pro costs $59 per seat per month billed yearly or $69 billed monthly. Business plans are custom-quoted and start with a 12-month commitment. There is a 7-day free trial, and Jasper requires a credit card to start it; trials that are not cancelled roll into a paid subscription. See current Jasper plans.

Strengths

• Brand voice and style controls shared across a whole team.
• Marketing-specific workflows instead of a blank chat box.
• Business plan adds custom agents and API access for larger operations.

Limitations

• Expensive for a single writer compared with ChatGPT or Claude.
• The trial requires a card and converts automatically unless cancelled.

Choose Jasper if you run content for a brand with several contributors. Skip it if you are a solo writer or freelancer; a general assistant plus a good AI content workflow will cost less.

7. Sudowrite: best for fiction writers

Sudowrite is designed for novelists and other fiction writers rather than general business writing. Its Story Bible keeps characters, settings, outlines and style notes in one place so that generated prose stays consistent with your book, and its tools focus on fiction-specific jobs such as expanding a scene, describing a moment more vividly or drafting a chapter from an outline.

Pricing: three tiers that all include every feature and differ only in monthly credits: Hobby & Student (from $10 per month billed annually), Professional (from $22 per month billed annually) and Max (from $44 per month billed annually, the only tier where unused credits roll over). Monthly billing costs more. A free trial is available without a credit card but includes only a small number of credits. See current Sudowrite plans.

Strengths

• Built around long creative projects rather than one-off prompts.
• Story Bible keeps generated text aligned with your characters and world.
• All features available on every paid tier.

Limitations

• The trial is small: drafting a full chapter can use more credits than it provides.
• Credit-based usage is harder to predict than a flat chat allowance.
• Little reason to use it for non-fiction or business writing.

Choose Sudowrite if you are writing a novel, novella or serial fiction. Skip it if your writing is professional or academic.

8. QuillBot: best budget option for paraphrasing and students

QuillBot focuses on rewriting rather than generating: paraphrasing in different modes, summarizing long text, checking grammar and, on the paid plan, checking for plagiarism. It is popular with students and non-native English writers who want to rephrase their own sentences more clearly.

Pricing: Premium costs $8.33 per month billed annually ($99.95 a year), or $19.95 billed monthly. See current QuillBot plans.

What the free plan gives you: two paraphrasing modes (Standard and Fluency) with a short per-paraphrase word limit, and summaries of up to 1,200 words per input. Premium unlocks all paraphrasing modes, unlimited paraphrase length, longer summaries and a monthly plagiarism-check allowance.

Strengths

• The lowest annual price among the paid plans here.
• Useful free tier for occasional rephrasing and summaries.

Limitations

• Paraphrasing can subtly change meaning, so each rewrite needs a careful read.
• Rewording someone else's work does not make it original; follow your institution's rules on AI use and citation.

Choose QuillBot if you mainly need to rephrase and tighten your own writing on a budget. Skip it if you need a drafting partner for long, original pieces.

9. Notion AI: best for writing inside a team workspace

Notion AI makes most sense for teams that already keep their docs, wikis, meeting notes and project plans in Notion. It can draft and edit inside pages, summarize meeting notes and answer questions using the content of your workspace, which is genuinely useful when the source material for your writing is already in Notion.

Pricing: Notion AI is included with the Business plan (listed at $20 per member per month) and Enterprise. Free and Plus workspaces get only a limited trial of AI features. Custom agents run on separately purchased credits. See current Notion plans.

Strengths

• Writes with context from your existing workspace documents.
• No separate tool to adopt for teams already living in Notion.

Limitations

• Full AI access requires moving to the Business plan.
• Not worth adopting Notion just for its writing assistant.

Choose Notion AI if your team already works in Notion. Skip it if you don't; a standalone assistant will do more for less.

What the free plans actually get you

Free AI writing plans are good enough for occasional use, but each one runs out in a different way. ChatGPT's free plan has generous text chat but caps uploads and advanced features. Claude's free plan uses a rolling allowance that resets every five hours, which can cut a long session short. Grammarly's free plan covers core corrections but limits generative prompts. QuillBot's free tier restricts paraphrase length and modes, while Jasper and Sudowrite offer only time- or credit-limited trials.

A practical approach is to start on a free plan, write for a week, and pay only for the tool whose limits you keep hitting. That tells you more than any feature list.

Privacy: what happens to your drafts

If you write anything confidential, check the training settings before you paste it into an AI app. On consumer plans, several providers can use conversations to improve their models unless you change a setting:

• ChatGPT: turning off "Improve the model for everyone" under Settings > Data controls stops new conversations from being used for training. OpenAI notes that submitting thumbs-up or thumbs-down feedback on individual plans can still allow that conversation to be used. Business and Enterprise workspaces are not used for training by default. (OpenAI data controls)
• Claude: Free, Pro and Max users choose whether their chats can be used for model training in Privacy Settings and can change that choice at any time. Team, Enterprise and API usage falls under commercial terms. (Anthropic privacy center)
• Grammarly: says it does not sell user content and does not allow its AI model providers to train on it, but it may use de-identified samples to improve its own service unless you opt out under Product Improvement and Training in account settings. (Grammarly Trust Center)

For client work or regulated information, a business or enterprise plan with contractual data protections is usually the safer route than a consumer subscription.

How to choose the right AI writing app

Work through these questions in order; the first clear answer usually settles it.

1. Is it fiction? Start with Sudowrite, and use Claude as a second opinion for editing.
2. Is it a team producing brand content? Look at Jasper first, or Notion AI if your team already lives in Notion.
3. Do you mostly need polish rather than drafts? Grammarly for editing everywhere you type; QuillBot if you mainly rephrase and want the lowest price.
4. Do you work all day in Google Docs or Word? Gemini through Google AI Pro, or Copilot through Microsoft 365, keeps AI inside your documents.
5. None of the above, or a mix? Choose ChatGPT for breadth or Claude for long-form quality and voice.

Whichever tool you choose, the quality of the result depends heavily on the brief. Our guide to writing better AI prompts covers the techniques that make the biggest difference, and the AI writing statistics page tracks how writers and businesses are adopting these tools.

Our recommendation

For most people, ChatGPT is the best AI writing app to start with because it covers the widest range of writing tasks well, and its free plan is enough to judge whether it suits you. If your work is mainly long-form or voice-sensitive, Claude is the better first choice. Pair either with Grammarly if you want consistent proofreading across every app you type in. Specialists should go straight to the specialist tools: Sudowrite for fiction and Jasper for brand-led marketing teams.

Whatever you choose, treat the AI as a fast first-draft partner and keep the final judgment, the facts and the voice your own. If your writing depends on sources, our guide to the best AI research apps covers tools that cite their evidence, and the best AI video apps guide helps you turn scripts into video.