The best AI writing tools, sorted by the writing you do

"AI writing tool" covers very different products: chat assistants that draft anything, editors that fix what you wrote, fiction tools that know your characters, and marketing platforms that enforce a brand voice. The right pick depends on the writing job, so this page groups seven tools by that job and lists the price and free plan each vendor publishes as of October 2026.

How the picks were chosen

We kept tools that a working writer, student or marketer can sign up for today, that publish their prices, and that offer a free plan or a free trial. We picked at least one tool for each common job: general drafting, writing inside office apps, editing and polish, fiction, and brand marketing. Selection rests on public facts such as pricing, listed features and platforms. We did not run a blind writing test, and nothing here is a paid placement.

The seven tools at a glance

1. Claude

Best for: long drafts, rewrites and documents · Price: Pro $20/month, or $17/month billed annually (as of Oct 2026) · Free plan: yes

Anthropic lists writing alongside reasoning and coding as a core use of its latest models. Features listed for its apps include Projects, memory, custom instructions, Artifacts for finished and editable work, Skills, and Claude for Microsoft 365. The Free plan covers chat on the web, desktop and mobile; Pro adds more models and usage.

Limits: usage caps apply on every plan, and Max, from $100 a month, is the route for very heavy use. Our ChatGPT vs Claude comparison covers writing tasks side by side.

2. ChatGPT

Best for: general drafting on a low budget · Price: Go $8/month; Plus $20/month (as of Oct 2026) · Free plan: yes

OpenAI's plan ladder is the widest of any pick: Free at $0, Go at $8, Plus at $20, Pro from $100, and Business at $20 per user per month billed annually. On Business, OpenAI says it does not train on business data by default, which matters if you draft client or company documents.

Limits: usage in ChatGPT Work is shared with Codex on the same plan, so heavy coding eats into writing time. If you are weighing a switch, see ChatGPT alternatives.

3. Gemini

Best for: people who write in Gmail and Google Docs · Price: Google AI Plus $4.99/month; Google AI Pro $19.99/month (US, as of Oct 2026) · Free plan: yes

The free Gemini app includes Canvas for drafting, Deep Research for source gathering and 15 GB of storage. The paid tiers matter for writers because they put Gemini inside Google's apps. Google AI Plus adds Gemini in Gmail and Vids with 2x the free usage. Google AI Pro adds Gemini in Docs as well, with 4x the free usage and 5 TB of storage.

Limits: Gemini in Docs starts at the Pro tier, and prices outside the US are in local currency.

4. Microsoft Copilot

Best for: writing inside Word, PowerPoint and Outlook · Price: Microsoft 365 Personal $9.99/month or $99.99/year (as of Oct 2026) · Free plan: yes, limited

The free Copilot app is a general chat assistant with capacity limits. The writing value is in Microsoft 365: Personal at $9.99 a month adds higher Copilot usage, and Copilot works inside Word, Excel, PowerPoint and Outlook. Premium, at $19.99 a month, adds extensive usage.

Limits: on the $12.99 Family plan, Copilot inside the Office apps is available only to the subscription owner.

5. Grammarly

Best for: editing and tone on desktop, browser and mobile · Price: Pro $12/month billed annually ($144/year), or $30 month to month (as of Oct 2026) · Free plan: yes

Grammarly checks what you already wrote, and on Pro it doubles as an AI rewrite tool. The free plan fixes spelling and grammar, shows your tone and includes 100 AI prompts a month. Pro adds one-click full-sentence rewrites, tone adjustment, fluency suggestions, plagiarism and AI-text detection, and 2,000 AI prompts a month. A quarterly option costs $60 per three months, and Pro plans allow up to 149 seats.

Limits: the big saving needs a yearly commitment; month to month, Pro costs $30.

6. Sudowrite

Best for: novelists and short-fiction writers · Price: Hobby & Student $10/month; Professional $22/month; Max $44/month (as of Oct 2026) · Free plan: free trial, no credit card

Sudowrite is built for fiction and runs its own fiction model, Muse 1.5. Story Bible walks you from idea to outline to chapter beats to prose in your style. Write suggests the next 300 words based on your characters, tone and plot arc, and Describe adds sensory detail to a scene. Plans are metered in credits: 225,000 a month on Hobby & Student, 450,000 on Professional and 2,000,000 on Max.

Limits: there is no permanent free plan, only a trial. Yearly billing is advertised at up to 50% off.

7. Jasper

Best for: marketing teams that need on-brand copy at scale · Price: Pro $69/month per seat, or $59 billed yearly (as of Oct 2026) · Free plan: 7-day free trial

Jasper is a marketing platform. Of the AI tools for content creation on this list, it is the one built for teams that publish under one brand. Pro includes the Canvas workspace, agents for core marketing workflows, and customization with 2 Brand Voices, 5 Knowledge assets and 3 Audiences, so output follows your tone and product facts. The custom-priced Business plan adds agents for GEO, translation and deep-research workflows, a no-code agent builder, unlimited brand settings and API access.

Limits: there is no free plan beyond the trial, and the value depends on feeding it brand material.

What to check before you pay

Four things on the pricing page decide what a writing tool really costs you. Check them before you subscribe.

• How usage is counted. Grammarly counts AI prompts (100 a month free, 2,000 on Pro). Sudowrite counts credits, from 225,000 to 2,000,000 a month. Chat assistants such as Claude and Gemini set usage limits that rise with each tier. A cheap plan with a low cap can cost more in practice than a pricier one you never hit.
• Whether your text trains the model. OpenAI says ChatGPT Business does not train on business data by default. Mistral's plan table shows a training opt-out on every plan. Check the setting on your plan before you paste client work.
• Where the tool lives. If you write all day in Google Docs or Word, a tool that works inside them (Gemini on Google AI Pro, Copilot on Microsoft 365) saves more time than a better model in a separate tab.
• How billing works. Yearly billing often cuts the monthly price sharply: Grammarly Pro is $12 a month yearly against $30 month to month, and Jasper Pro is $59 against $69. Try the free plan or trial for a week before committing to a year.

Which one to pick

• Essays, reports, long drafts: Claude or ChatGPT. Run the same brief through both.
• Email and documents inside your office suite: Gemini for Google, Copilot for Microsoft.
• Polishing your own writing: Grammarly.
• A novel or short story: Sudowrite.
• Brand marketing across a team: Jasper.

Whichever tool drafts, the edit is still yours. Give the model your voice and ask it to flag weak spots, as in this prompt:

Here are two paragraphs I wrote, so you can hear my voice: [paste your writing sample]
Draft a [type of piece] for [audience] about [topic], about [word count] words, in that voice.
After the draft, list every claim that needs a source and every sentence that sounds generic, so I can fix them myself.

For ready-made prompts, browse our writing prompts. To make an AI draft sound like you rather than like a template, use the humanize prompts or the Humanizer skill for Claude, then do a final read in your own words.

FAQ

What is the best AI for writing?

It depends on the job. General assistants such as Claude, ChatGPT and Gemini handle most drafting. Grammarly is for editing, Sudowrite for fiction and Jasper for brand marketing.

Are there free AI writing tools?

Yes. Claude, ChatGPT, Gemini, Copilot and Grammarly have free plans. Sudowrite and Jasper offer free trials instead.

Will readers or teachers know I used AI?

They may. Many schools and publishers use AI detectors, and the honest route is to follow the AI policy you are writing under and disclose use where it asks. Our AI detectors guide explains how those tools work and where they go wrong.

Which AI tools are best for content creation?

For blog posts, newsletters and social copy, a general assistant such as Claude, ChatGPT or Gemini drafts the content, and Grammarly polishes it. For a team with many writers and one brand, Jasper adds Brand Voices and Knowledge assets that keep output on tone and on product facts.

Which AI writing tool is best for students?

Start with a free plan. Gemini Free includes Canvas and Deep Research, and Grammarly Free covers grammar and tone. Mistral offers verified students its Pro plan at $5.99 a month. Check your school's AI rules first.