Piotr Olszewski · updated October 12, 2026In 2026, one good general-purpose assistant is enough for most writing. Claude writes the most natural prose in longer formats and sticks to a style well, ChatGPT is the most versatile, and Gemini wins if you write in Google Docs and Gmail. Specialized copywriting tools (Jasper, Copy.ai, Writesonic) make sense for companies that need brand voice, workflows and SEO - not for one person writing posts.
I checked prices on official pricing pages in October 2026. Dollar and euro amounts stay in the vendor's currency.
Quick picks
- Best overall: Claude - long-form writing, natural style, working with files and your own guidelines.
- Best free: ChatGPT Free and Gemini - both have free plans with limits that cover everyday short texts.
- Best for editing: DeepL Write - polishes grammar, style and tone of text you've already written.
- Cheapest paid: ChatGPT Go at $8 a month.
- For marketing teams: Jasper - brand voice, marketing agents, 30+ languages.
Comparison table
| Tool | Starting price | Free plan | Best for |
|---|---|---|---|
| ChatGPT | $8/mo (Go) | yes | all-round writing, research, images |
| Claude | $17/mo (Pro, billed yearly) | yes | long-form, style, working with documents |
| Gemini | paid Google AI plans (price varies by country) | yes | writing in Gmail and Google Docs |
| Jasper | $59/mo (billed yearly) | 7-day trial | marketing with brand voice |
| Copy.ai | $24/mo (billed yearly) | not stated | sales and marketing teams |
| Writesonic | $79/mo | trial | SEO and visibility in AI search |
| QuillBot | not confirmed | yes | paraphrasing and summarizing |
| DeepL Write | €6.99/mo (add-on) | DeepL Free | proofreading and style |
ChatGPT
ChatGPT is the most versatile assistant: it writes posts, emails, product descriptions and articles, does web research, reads files and generates images. Without good instructions, though, it easily slips into a formulaic "AI style" full of empty phrases.
Who it's for: anyone who wants one tool for everything.
Price: per OpenAI's pricing page, Free is $0, Go $8 a month, Plus $20 a month, Pro from $100 a month (tiers at $100, $200 and $500). Business is $20 per user per month billed annually ($25 monthly), for 2 or more users.
Downsides:
- without style instructions, texts tend to be wordy and samey;
- the free plan limits access to stronger models and images;
- it can state a false fact with complete confidence - check everything.
Claude
Anthropic's Claude is my pick for longer pieces: it holds a tone well, pads less with a good prompt, and works well with long documents and your own style examples. Projects let you keep brand guidelines and materials in one place.
Who it's for: copywriters, editors, and people writing reports, articles and longer emails.
Price: per the pricing page, Free is $0, Pro $20 a month or $17 a month billed annually ($200 a year), Max from $100 a month. Team is $20 per seat per month billed annually ($25 monthly). Claude Code is included in every paid plan.
Downsides:
- Pro usage limits can run out during heavy work;
- image generation isn't its strength;
- you have to ask explicitly for a specific tone, or it can default to a fairly neutral register.
Gemini
Google's Gemini is most worthwhile if you write in Gmail, Google Docs and Sheets, because the AI works directly inside those apps.
Who it's for: individuals and companies working in the Google ecosystem.
Price: there's a free plan, plus paid Google AI Plus (Gemini in Gmail and Docs, more storage), Google AI Pro and Google AI Ultra plans. Prices vary by country, so check the Google AI subscriptions page for yours.
Downsides:
- it gives the most to people who already work in Google;
- marketing copy can come out cautious and generic;
- features and limits differ between plans, so it's easy to overpay.
Jasper
Jasper is a platform for marketing departments: brand voice, knowledge bases, audience personas and campaign agents. The vendor says it supports 30+ languages. For one person it's usually overkill - for similar money you get Claude or ChatGPT.
Who it's for: marketing teams at mid-sized and large companies.
Price: per the pricing page, Pro is $69 per seat per month or $59 billed annually (2 brand voices, 5 knowledge assets, 3 personas). Business is custom-priced with a 12-month minimum. There's a 7-day free trial.
Downsides:
- expensive compared with general-purpose assistants;
- under the hood it uses models you know from other tools.
Copy.ai
Copy.ai has evolved from a text generator into a "go-to-market" platform with workflows for sales and marketing. The Chat plan gives you OpenAI, Anthropic and Gemini models in one place, with no word limit.
Who it's for: small teams that want a shared chat with several models, and companies automating sales processes.
Price: per the pricing page, Chat costs $29 a month or $24 a month billed annually ($288 a year, 5 seats). Workflow plans start at $1,000 a month (Growth, billed annually).
Downsides:
- a huge price gap between the Chat plan and the workflow plans;
- the pricing page says nothing about a free plan.
Writesonic
Today Writesonic is more an SEO and GEO tool than a text generator: it tracks brand visibility in ChatGPT, Gemini and Google AI Overviews, runs site audits and writes search-optimized articles.
Who it's for: site owners and SEO agencies that want to combine writing with visibility tracking.
Price: per the pricing page, Starter is $79 a month (15 AI articles, 10 audits), Basic $199, Growth $399. Annual billing lowers the cost. There's a trial with no card required.
Downsides:
- expensive as a pure writing tool;
- a monthly article cap.
QuillBot
QuillBot does paraphrasing, summarizing, grammar checking and AI detection. It's most popular with students and people writing in English. QuillBot isn't in the directory yet.
Who it's for: people reworking or shortening existing texts.
Price: QuillBot's pricing page blocked automated reading, so I'm not quoting prices or limits I haven't confirmed. There's a free plan with limits.
Downsides:
- it's not a tool for writing from scratch;
- check prices on the site before buying.
DeepL Write
DeepL Write improves the style, grammar and tone of finished text. It doesn't write for you - it improves what you've written. It's a good final step after a draft generated by AI or written in a hurry.
Who it's for: people writing emails and documents, translators, and companies working in several languages.
Price: per DeepL's site, DeepL Pro Individual costs €7.49 a month billed annually, and DeepL Write as an add-on €6.99 per user per month. The free version of DeepL gives you 50,000 characters of translation a month.
Downsides:
- it's an editor, not a content generator;
- the site doesn't say exactly which Write features work in which languages - test on the free version.
How to choose
- Start with a general-purpose assistant. ChatGPT, Claude or Gemini will do 90% of a copywriter's job with a good prompt.
- Compare on your own text. Give three tools the same brief and the same style sample, and pick the one that needs the least editing.
- Copywriting platforms are for teams. Jasper and Copy.ai make sense when several people have to write in one brand voice.
- Treat SEO separately. If you rely on traffic from Google and AI search engines, consider Writesonic or another SEO tool, not just a chatbot.
- Add an editing pass. DeepL Write, or a second model acting as editor, will catch repetition and stiff sentences.
- Company data. For confidential material, choose a business plan that doesn't train on your data, or a model you run yourself.
Common mistakes
- One-sentence prompts. "Write a post about our company" gets you generic filler. Give the goal, audience, length, tone and an example.
- Not fact-checking. AI makes up numbers, quotes and sources. Check every fact.
- Publishing without editing. Empty phrases, repetition and stock AI wording give the text away immediately.
- Paying for several tools at once. One paid assistant plus a free editing tool is usually enough.
- Pasting customer data into free plans. Check whether your data is used to train models.
FAQ
What is the best free AI writing tool?
ChatGPT, Claude and Gemini all have free plans. They're enough for short texts, but with longer work you'll hit limits quickly.
Which AI writes the most human-sounding text?
In my view Claude gives the most natural prose in longer pieces, with ChatGPT very close behind and more versatile. It's best to test both on your own brief, because a lot depends on the type of text.
ChatGPT vs Claude: which is better for writing?
Claude for long-form, reports and working on documents while keeping a consistent style. ChatGPT when you also need images, web research and lots of features in one place. Both base paid plans cost $20 a month.
Does Google penalize AI generated content?
Google evaluates how helpful and high-quality content is, not whether AI was used. Mass-produced, thin texts do perform poorly, though. AI text needs editing, your own experience and verified facts.
Is Jasper better than ChatGPT?
Not for individual pieces - Jasper starts at $59 a month and relies on similar models. It wins in marketing teams thanks to brand voices, knowledge bases and campaign agents.
How do I make AI writing sound less robotic?
Paste a sample of your own writing as a style reference, ban specific phrases, ask for shorter sentences and concrete numbers, then read the text out loud and cut anything you wouldn't say yourself.
Sources
- ChatGPT - plan pricing - checked October 2026
- Claude - pricing - checked October 2026
- Google AI - subscriptions - checked October 12, 2026
- Jasper - pricing - checked October 12, 2026
- Copy.ai - pricing - checked October 2026
- Writesonic - pricing - checked October 2026
- QuillBot - Premium - October 2026, page blocked automated reading
- DeepL Pro - checked October 2026