# ChatGPT for Writing: How to Use It Well, and Where It Falls Short > ChatGPT does the most for your writing as an editor: paste your draft, say who it's for and what to change, then check every fact it touches. Plans start free, and the paid ones mainly change which model answers and how much text you can paste in. By Pat Simmons · November 3, 2026 · 11 min read Canonical: https://www.aiformortals.co/blog/chatgpt-for-writing An AI for writing is a chatbot that drafts, rewrites and edits text from plain-English instructions, and ChatGPT is OpenAI's. It does the most for your writing as an editor: paste in your draft, say who it's for and what you want changed, then check every name, number, quote and citation it touches. OpenAI's own help page says to use ChatGPT as a first draft, not a final source, because it can sound confident when it's wrong. You can start free. ChatGPT's pricing page (checked November 3, 2026) lists Free at $0, Go at $8 a month, Plus at $20 a month and Pro from $100 a month, and every one of them includes unlimited everyday text chats, subject to OpenAI's abuse guardrails. AI for Mortals also has a page on what OpenAI is and what it makes. ## Can ChatGPT improve my writing? It can, mostly as an editor on a draft you wrote, with you keeping the final say. OpenAI's prompting guide gives three habits that fit writing well: be clear and specific with enough context, ask for the tone you want with plain words like formal, friendly or serious, and refine over several turns instead of expecting one perfect answer. Where it falls short is facts. OpenAI lists what can go wrong in its article on whether ChatGPT tells the truth: wrong dates and definitions, made-up quotes, studies and citations, and confident answers to questions that don't have a clean answer. Anything it adds to your piece that you didn't give it is something you have to check. ## How to use ChatGPT for writing in 5 steps These steps follow OpenAI's own help pages, linked in each one. 1. Give it your draft and tell it who the reader is Paste what you've written, then say who will read it, what it's for and what you want back. OpenAI's guide asks for prompts that are clear, specific and give enough context for the model to understand the request. "Make this better" gives it nothing to aim at; "this is a note to my landlord about a broken heater, keep it polite and under 150 words" does. 2. Name the tone you want OpenAI suggests describing the tone with adjectives such as formal, informal, friendly, professional, humorous or serious, and gives the example "Explain this in a friendly and engaging tone." Asking it to list each change it made, with a short reason, lets you keep the edits you agree with and reject the rest. 3. Push back and refine over a few turns The same guide describes prompting as an iterative process: read the answer, then adjust the wording, add context or simplify the request. In practice that means replies like "too stiff, sound more like the first paragraph" or "you cut the deadline, put it back." 4. Keep a long piece in a Project, with standing instructions For anything you'll come back to, such as a report, a newsletter or a book, a Project keeps the related chats, files and instructions together so ChatGPT can use the same context each time. OpenAI's Projects help page names writing and recurring content drafts as uses, and project instructions apply only inside that project. The pricing page lists Projects on Free, Go, Plus and Pro. For rules you want in every chat (your spelling preference, words you never use, how long your answers should be), custom instructions work on all plans. Free and Go can save up to 1,500 characters there; Plus, Pro and the business plans get up to 5,000. 5. Check every fact, quote and citation yourself OpenAI's advice is to always verify quotes, data, technical information and references, and when accuracy counts, to use search or deep research and open the sources it cites. A link in an answer only helps if you click it and the page says what ChatGPT claims it says. ## Example prompts for common writing jobs These are examples written for this guide, built on OpenAI's advice above (context, reader, tone, then refine). Swap in your own details. Editing a work email or memo "This is an email to my team about moving our launch date. They're busy and will skim it. Keep my points, cut it to under 120 words, make the new date the first sentence, and keep the tone friendly but direct. Then list what you changed." Tightening a draft to a word count "This grant summary is 480 words and the form allows 300. Cut it to 300 without dropping any numbers or names. Mark anything you removed so I can decide whether to keep it." Outlining a report or essay "I'm writing a 1,500-word report on why our volunteer sign-ups fell this year. Here are my notes. Suggest an outline with section headings and the point each section makes. Don't write the sections." For school work, keep it to outlines, feedback and edits on writing you did yourself, and follow your teacher's or school's rules on AI. Using ChatGPT for research "Find three recent sources on remote-work policies at small nonprofits. For each one, give the link, who published it, the date, and one sentence on what it says. If you can't find a source, say so instead of guessing." Then open each link. OpenAI's help article says ChatGPT can cite references to sources that don't exist, so a citation you haven't opened isn't checked. Getting feedback on a story chapter "Below is chapter two of my short story. Don't rewrite it. Tell me where the pacing drags, which lines of dialogue sound unnatural, and where a reader might get confused about who's speaking." ## Is ChatGPT good for creative writing? It can help with brainstorming, feedback on a draft and rewrites in a tone you describe. How good its own stories are is a judgment AI for Mortals hasn't tested, so this guide doesn't grade it. Two practical limits are documented. The first is length: the pricing page puts the most you can paste into one message with the fast GPT Instant model at about 12 pages of text on Free, about 40 pages on Go and Plus, and about 250 pages on Pro, so a full manuscript usually goes in as chapters. The second is accuracy for anything real in the story (places, history, quotes from real people), which needs the same checking as any other writing. A Project helps with a long creative piece, since it keeps your chapters, character notes and instructions in one place across chats. OpenAI's own Projects help page shows one called "Short story ideas" in its example sidebar. ## Which ChatGPT plan you need for writing Every plan, Free included, has unlimited everyday text chats, so for writing the plans mostly differ in three things: which model answers, how long a document you can paste in, and whether you see ads. Prices, message lengths and ads below are from ChatGPT's pricing page, checked November 3, 2026, except where another source is linked; the model column is from OpenAI's models help page, checked the same day. The pricing page lists GPT-6 Luna for Free and Go, while OpenAI's models help page says those plans get GPT-5.6 Luna. _The individual plans on ChatGPT's pricing page, captured logged out on November 3, 2026._ PlanPriceModel in ChatLongest message (GPT Instant)Ads Free$0GPT-5.6 LunaAbout 12 pages of textMay show ads Go$8 a monthGPT-5.6 LunaAbout 40 pagesMay show ads Plus$20 a monthGPT-6 Sol (Astra only in Work and Codex)About 40 pagesNo ads ProFrom $100 a monthGPT-6 Sol, plus GPT-6 Pro powered by GPT-6 AstraAbout 250 pagesNo ads For more detail on which GPT-6 model you get on each ChatGPT plan and what each one is for, AI for Mortals has a separate guide. A few more plan details touch writing: - Plus adds scheduled tasks, custom GPTs and expanded memory and context, according to the pricing page. - From December, chats with ChatGPT's stronger models on Plus, Pro and Business draw from the same allowance as Work and Codex. - OpenAI is testing picture ads in the US on Free and Go, shown while you wait on an image. OpenAI's ads page says ads don't change ChatGPT's answers and that temporary chats show no ads. - Nonprofits can get up to a 75% discount on ChatGPT Business or Enterprise through OpenAI for Nonprofits, per the pricing page's FAQ. Once you've picked a plan, our guide on how to get the most out of the new ChatGPT app covers the rest of the app. ## Is there a better AI than ChatGPT for writing? This page doesn't name one, because AI for Mortals hasn't tested these tools on writing, and a ranking without a test would be a guess. What can be compared is what each one costs, what writing tools its plans page lists, and what happens to your chats. Claude and Gemini both have free plans, and their cheapest paid plans cost $20 a month (Claude Pro billed monthly) and $4.99 a month (Google AI Plus). ToolFree planCheapest paid planWriting tools on the free plan, per the vendorAre your chats used to train its AI? ChatGPTYes, $0Go, $8 a monthProjects, custom instructions, limited memoryYes by default on Free, Go, Plus and Pro, with an opt-out (pricing page, data controls) ClaudeYes, $0Pro, $20 a month billed monthly, or $17 a month billed yearly ($200 up front)Claude Docs, Projects (up to 5), memory, incognito chatsWhen Model Improvement is on in your privacy settings (the pricing page lists training as opt-out), or when a chat is flagged for safety review; incognito chats never (Anthropic privacy center) GeminiYes, $0 with a Google AccountGoogle AI Plus, $4.99 a monthCanvas, Gems, Deep Research, Gemini Notebook (which Google calls a "research and writing assistant")When Keep Activity is on, which it is by default if you're 18 or over; some chats are read by human reviewers; temporary chats aren't used for training (Gemini privacy hub, activity settings) _Claude's individual plans on Anthropic's pricing page, captured logged out on November 3, 2026._ Google's plans page says Gemini can help you get to a first draft, work on your arguments and fine tune your ideas. ## What ChatGPT does with what you write On ChatGPT's personal plans, OpenAI may use your chats to train its models unless you turn that off. The data controls article says data sharing is on by default for Free, Plus and Pro, and the pricing page lists training with an opt-out on Free, Go, Plus and Pro. To turn it off on the web, open your account menu, select Settings, then Data controls, switch off Improve the model for everyone and select Done. On iPhone and Android, open the sidebar, tap your profile icon, then Data controls. You keep your chat history either way. _The Improve the model for everyone switch, from OpenAI's data controls help article._ A few more details from OpenAI's help pages: - Thumbs up and thumbs down count. Even after you opt out, rating a reply lets OpenAI use that whole conversation to improve its models. - Temporary chats stay out of training. A temporary chat doesn't appear in your history, doesn't update memory and isn't used to train models, though OpenAI may keep a copy for up to 30 days for safety. Start one from a new chat by selecting Temporary. - Work accounts are different. By default, OpenAI doesn't train on content from ChatGPT Business, Enterprise or Edu workspaces. - Private drafts can be hidden from anyone using your device. You can lock private chats behind a PIN on every plan, Free included, which moves them out of your chat history and search. ## Questions people ask about ChatGPT for writing What is an AI for writing? It's a chatbot you give instructions in plain English to draft, rewrite, shorten or edit text. ChatGPT, Claude and Gemini all work this way, each with a free plan. What is an AI content writer? It's what people call an AI tool used to produce drafts of articles, posts or product copy from instructions. With ChatGPT, that's the same chat box used with a clear brief, and OpenAI's advice to verify what it writes applies to anything you publish. Is ChatGPT free for writing? Yes. The Free plan costs $0 and includes unlimited everyday text chats, with lower limits on uploads, memory and tools than the paid plans, and it may show ads. Can ChatGPT write in my style? You can describe your style in custom instructions or in a Project's instructions, and paste in samples of your writing for it to work from. OpenAI's example of a project instruction is "Act like my marketing mentor. Be concise. Use bullet points. Ask clarifying questions." How long a document can I paste into ChatGPT? With GPT Instant, about 12 pages of text on Free, about 40 on Go and Plus, and about 250 on Pro. The reasoning models take more: about 320 pages on Go and Plus and about 680 on Pro, per the pricing page. Can ChatGPT check my facts and citations? It can look things up with search and give cited answers, but OpenAI warns it can also invent quotes, studies and citations. Open every source it gives you before you rely on it. Is ChatGPT good for research? It can find and summarize sources when search or deep research is switched on, and those tools are on by default for all models. Deep research is limited on Free and expanded on Plus, per the pricing page. Check each source it cites before you use it. Will ChatGPT show me ads while I write? Ads may appear on Free and Go, below a response or during image generation; Plus, Pro, Business, Enterprise and Edu accounts don't get ads, and temporary chats show none. Does OpenAI offer a discount for nonprofits? Yes. Through OpenAI for Nonprofits, nonprofits can get up to a 75% discount on ChatGPT Business or ChatGPT Enterprise. There are more guides to using AI at work in our At Work section. ## Sources - ChatGPT: Plans and pricing (checked November 3, 2026) - OpenAI Help Center: Does ChatGPT tell the truth? - OpenAI Help Center: Prompt engineering best practices for ChatGPT - OpenAI Help Center: Projects in ChatGPT - OpenAI Help Center: ChatGPT custom instructions - OpenAI Help Center: Data controls in ChatGPT - OpenAI Help Center: How your data is used to improve model performance - OpenAI Help Center: Temporary chat in ChatGPT - OpenAI Help Center: Ads in ChatGPT - Anthropic: Claude plans and pricing (checked November 3, 2026) - Anthropic Privacy Center: Is my data used for model training? - Google: Gemini plans (checked November 3, 2026) - Google: Gemini Apps Privacy Hub - Google: Manage and delete your activity in Gemini Apps