The best AI tools for professional writing are DeepL Write and Grammarly to polish text, Microsoft Copilot, Gemini, Claude and ChatGPT to generate it, and Jasper or Writesonic for marketing. Most have a free plan. To learn to use them with a method, the AI and Innovation program at Founderz works the full flow.
Reviewed in October 2026.
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What you’ll take from this
This guide compares 11 AI tools to write text, with prices and plans checked on their official sites and no figure included that I could not confirm.
- A table with what each tool does, whether it has a free plan, the starting price and US availability.
- A card per tool with a concrete task, grouped by use: assistants, marketing and proofreading.
- A score out of 30, based on official documentation.
- A three-step workflow, a checklist to choose, three prompts and answers to common questions.
The best AI tools for professional writing: comparison
There is no single best AI writing tool: it depends on whether you want to generate text, rewrite it or proofread it. Nobody needs all eleven at once.
Our rating: how they score
Best for professional writers
DeepL Write
Rewriting and polishing style
Best general assistant
Microsoft Copilot
Writing inside Word and Outlook
Best free option
Gemini
Drafts and summaries inside Google
How to read this rating
- These tools are very different, so we score within each category: software built for professional writers does not compete with a general assistant.
- Fit counts double: a tool built for your sector scores 5; a general assistant that does the job well with good prompts scores 3.
- General assistants (Copilot, ChatGPT, Claude, Gemini) share the same fit score because they do the same kind of job; ease, price, availability and privacy set them apart, and we score privacy for professional use with client data. Ties are broken on privacy.
- Best if you use shows whether a tool works best inside Microsoft 365 or Google Workspace. Copilot and Gemini are not marked down for it, but they are only the best choice if you already work there.
- Scores are based on official information checked on October 25, 2026. This is not a lab test: it is our rating against fixed criteria, and we keep the reason behind every score.
| Software for professional writers | ||||||
|---|---|---|---|---|---|---|
| Tool | Fit (×2) | Ease | Value | US availability | Privacy | Total /30 |
| 🏆 DeepL WriteBest if you use: Any setup | 4 | 5 | 4 | 5 | 2 | |
| GrammarlyBest if you use: Any setup | 3 | 5 | 4 | 5 | 2 | |
| ProWritingAidBest if you use: Any setup | 3 | 4 | 4 | 5 | 2 | |
| LanguageToolBest if you use: Any setup | 3 | 5 | 3 | 5 | 2 | |
| JasperBest if you use: Its own platform | 4 | 3 | 2 | 5 | 2 | |
| QuillBotBest if you use: Any setup | 3 | 4 | 3 | 5 | 2 | |
| WritesonicBest if you use: Its own platform | 4 | 3 | 2 | 3 | 2 | |
| General AI assistants | ||||||
|---|---|---|---|---|---|---|
| Tool | Fit (×2) | Ease | Value | US availability | Privacy | Total /30 |
| 🏆 Microsoft CopilotBest if you use: Microsoft 365 | 3 | 5 | 4 | 5 | 5 | |
| GeminiBest if you use: Google Workspace | 3 | 5 | 5 | 5 | 4 | |
| ChatGPTBest if you use: Any setup | 3 | 5 | 5 | 5 | 3 | |
| ClaudeBest if you use: Any setup | 3 | 5 | 5 | 5 | 3 | |
How we score: 1 to 5 on each criterion against a fixed scale (fit ×2, total out of 30), from official documentation, plans and prices checked on the date shown. We compare within each category. This is not a lab test.
My first combination to start is ChatGPT for the draft, DeepL Write to polish the style and LanguageTool for the final check: all three sit at the top of the table.
Pricing, plans and availability
| Tool | Best for | Free plan | Starting price | US availability |
|---|---|---|---|---|
| ChatGPT | Drafts, reports, summaries and rewrites | Yes, with limits | $8/mo (Go); Plus, $20 | Yes |
| Gemini | Drafts and summaries from Google | Yes | See site (Google AI Plus) | Yes |
| DeepL Write | Rewriting and polishing style | See site | €6.99/mo billed annually (Write Pro, VAT incl.) | Yes |
| Claude | Long texts and keeping a consistent tone | Yes | $17/mo billed annually (Pro); $20 monthly | Yes |
| LanguageTool | Spelling and grammar checker | Yes, with a text limit | See site | Yes |
| Microsoft Copilot | Writing inside Word and Outlook | See site | $9.99/mo (Microsoft 365 Personal) | Yes |
| QuillBot | Paraphrasing and summarizing | Yes, with limits | See site | Yes |
| Grammarly | Proofreading and tone in English | Yes | €12 (Pro, check billing period) | Yes |
| Jasper | Marketing and brand content for teams | No, 7-day trial | $59/mo billed annually (Pro); $69 monthly | Yes |
| Writesonic | Website, blog and SEO copy | No, free trial | $79/mo billed annually (Starter); $99 monthly | See site |
| ProWritingAid | Detailed style analysis in English | Yes, with limits | €10/mo billed annually (Premium); €30 monthly | Yes |
Data checked on October 25, 2026 on each tool’s official website. Prices, plans and terms change often: always check the current details on the provider’s site before you buy.
No affiliates, no sponsorships. Founderz receives no affiliate commission or payment from any of these tools for being listed here. We wrote this guide to give you a genuinely useful resource to help you choose what best fits your needs.
General assistants: drafts
To write text from scratch, summarize and rewrite, start with a general assistant. They are the best AI writing tool if you do not yet know which task you want to automate.
ChatGPT
It is the most general-purpose assistant and the first choice for most writers. A typical task: paste your meeting notes and ask for a one-page report in a formal tone, then a three-line version for the email. Its limit is that it can state false facts with confidence, so verify every figure. It has a free plan with usage limits; Go costs $8 a month and Plus, $20.
Claude
It is the assistant from Anthropic, very handy for long texts and for keeping a consistent tone. A typical task: paste three of your articles and ask for a fourth in the same style. It does not replace a specialist proofreader. It has a free plan and Pro costs $17 a month billed annually and $20 month to month.
Gemini
It fits if you already work with Google and want a free assistant to summarize and draft. A typical task: summarize a long document and suggest three headlines. It has a free plan and an entry plan (Google AI Plus); check the current price on its site.
Microsoft Copilot
It is the Microsoft assistant and its value is working inside the apps you already use. A typical task: ask for a draft reply to a client from Outlook or a first text from Word. Microsoft 365 Personal costs $9.99 a month on the US site. If your company uses Microsoft 365, ask your IT team which version it has.
Marketing and web: campaigns
If you write brand content, website copy or ads, these platforms add templates and team workflows.
Jasper
It is a platform built for marketing teams that produce brand content on a recurring basis. A typical task: generate ad variants and a blog post in the brand voice. It has no free plan, only a 7-day trial, and Pro costs $59 a month billed annually. It is the most expensive option in the table for individual use.
Writesonic
It is aimed at website, blog and SEO copy. A typical task: create product descriptions and a landing page draft. It shows no free plan, only a trial, and Starter costs $79 a month billed annually.
Rewrite and proofread: style
Once you have the text, these tools polish it: they rewrite, correct grammar and adjust tone.
QuillBot
It rewrites and summarizes text you already have. A typical task: simplify a dense paragraph or shorten a summary. It has a free plan with usage limits; check its site for the Premium price.
DeepL Write
It is the DeepL rewriting assistant: it corrects and improves the style of your text without changing your intent. A typical task: polish an important email before sending it. Write Pro costs €6.99 per user a month billed annually (VAT included); check its site for free usage limits.
Grammarly
It is the reference for proofreading and tone, built mainly for English. A typical task: review an English text before sending it to a client. It has a free plan and Pro is listed at €12; check the billing period on its site.
ProWritingAid
It offers very detailed style analysis: pacing, repeated phrases and readability. Its site says it is only available in English. It has a free plan; Premium costs €10 a month billed annually, €30 month to month, or €399 one time.
LanguageTool
It is a spelling and grammar checker that supports Spanish. A typical task: review an article before publishing it and catch agreement errors. The free plan limits how much text you can check at once and Premium adds advanced checks; check its site for the price.
What is an AI writing tool
An AI tool for professional writing is software that generates, rewrites or proofreads text from natural language instructions. You write an instruction, such as “write a welcome email for new customers”, and the model returns a draft in seconds. You do not need to code.
It serves very different roles: a writer uses it to beat the blank page, a marketing team for campaigns and descriptions, communications for notes and statements, and customer support for reply templates.
The model predicts, word by word, the most likely continuation of your instruction. That is why a writing assistant can sound fluent and still get a fact wrong: it optimizes language coherence, not truth. The professional value is in reviewing and approving.
Chatbots and writing assistants built into a word processor now live side by side: an AI like ChatGPT writes content from scratch, while a writing assistant such as DeepL Write corrects and rephrases. Review everything they generate, because the technology changes every few months.
What text can you create with AI
An AI tool takes an instruction and returns a draft in almost any written format. The more specific the instruction, the better the AI text you get.
- Emails: sales follow-ups, customer replies and internal communications.
- Blog content: outlines, introductions and rewrites to improve readability.
- Product descriptions: sheets for your online store and variants by channel.
- Website copy: service pages, landing pages and microcopy.
- Social media: posts, captions and adaptations of the same message by platform.
AI text generators also summarize a long document, turn meeting notes into minutes and rewrite a dense paragraph. For creative writing, an AI assistant suggests ideas and variants, but you decide the final writing style.
Three-step workflow
Bringing AI into your writing is a short process. Think of a writer who prepares a newsletter, three product sheets and a report every week:
- Instruction: describe the task, audience, tone and length. Pick a task you repeat every week and note how long it takes today.
- Generation: the tool returns one or more drafts. You do not expect a publishable text, but a starting point that saves you the blank page.
- Review: read critically, fix the tone, verify figures, names and claims, and run the text through a proofreader.
A good instruction improves the result a lot: always give context, audience, tone and goal. The mechanical part of writing gets automated; the part that needs judgment stays yours.
AI writing works best when you split the writing process into stages. To write with artificial intelligence without losing judgment, use the tool as support, not as the author: you get help creating drafts and take help from AI only where you need it.
Limits of AI writing
AI speeds up the draft, but some decisions stay yours:
- Invented facts: AI can state something false with confidence. Verify figures, quotes, names and dates.
- Bias: models reflect the data they were trained on.
- Language quality: some tools only work well in English.
- Privacy: do not paste confidential client or company information without knowing how that data is handled.
How to choose the right tool
Before paying, check these points with a free trial and a real text from your field:
- Data and privacy: what the platform does with what you paste and whether it offers business controls.
- Integrations: whether it connects with your email, your CMS or your text editor.
- Cost per user: calculate with your real team; Jasper and Writesonic cost far more than a general assistant.
- Language: check that the output sounds natural.
- Learning curve: a tool your team does not use saves no time.
Training for your team
Picking the tool is the easy part; getting the whole team to use it well, with data protected, is harder. Founderz teaches a method that works with Copilot, ChatGPT, Claude, Gemini and the specialist tools for professional writers.
If you are looking for the best artificial intelligence tools, do not start with a ranking. A tool is the best to write with only if it fits your task: tools for writing emails are not the ones for creating SEO-optimized texts. Business AI software adds data controls, and a generic AI writer is not enough for everything.
Tip
Pick a real task, test two or three tools with the same text and keep the one that fits your workflow and your language.
Important
AI can invent facts and does not know your brand context. Always review tone, figures and claims before publishing, and do not enter confidential information into free tools without reading their privacy policy.
Prompts to get started
Three prompts to copy and paste into ChatGPT, Claude or Gemini. What is in brackets is your case. In the AI prompts for copywriting you will find many more.
Act as a professional writer. Write a 120-word welcome email for new customers of [company], in a warm and professional tone, ending with a clear call to action. Audience: [describe the customer].Rewrite this paragraph to be clearer and shorter without changing the meaning. Keep the [formal] register and point out what you changed and why. Text: [paste your text]Summarize these meeting notes into a one-page report with three sections: decisions, tasks with an owner and next steps. Mark with [VERIFY] any fact that does not appear in the notes. Notes: [paste your notes]Frequently asked questions
These are the questions that come up most when looking for an AI writer, with the answer first.
What are the best AI tools for writing?
It depends on the task: ChatGPT, Claude and Gemini to generate text, DeepL Write and LanguageTool to polish and proofread, and Jasper or Writesonic for marketing content. Test two or three with a real text before paying.
Is there an AI writer in Spanish?
Yes. ChatGPT, Claude, Gemini and Microsoft Copilot write in Spanish, and DeepL Write and LanguageTool support it for rewriting and proofreading. ProWritingAid is only available in English.
Which AI writer works for agencies?
For teams that produce a lot of brand content, Jasper is designed for that use, with a Pro plan at $59 a month billed annually. At lower volume, a general assistant such as ChatGPT or Claude is usually enough.
Can I write with AI for free?
Yes. ChatGPT, Claude, Gemini, QuillBot, Grammarly, ProWritingAid and LanguageTool have a free plan, with usage limits. Jasper and Writesonic only offer a trial.
Which AI can I use to write reports?
ChatGPT or Claude structure notes and summarize long documents into clear drafts. Then proofread with LanguageTool or DeepL Write and always verify the figures.
How does AI that writes text work?
It predicts, word by word, the most likely continuation of your instruction. That is why it sounds fluent but can get a fact wrong, and human review is always needed.
Does Google penalize writing with AI?
There is no rule against using AI itself. What matters is that the content is useful, correct and reviewed by a person before publishing.
Does AI replace the human writer?
No. It speeds up the first draft, but the person decides the tone, verifies the facts and takes responsibility for the result.
The tools we teach at Founderz
In the Founderz program you can take, you work through practical cases with these tools:
Your next step
Pick a writing task you repeat every week, solve it with one of these tools and measure how much time you recover. To turn that test into a method, the AI and Innovation program from Founderz teaches you to direct these tools with judgment, with a learning community and the Founderz + Microsoft certification.
