⚡ Nhận định nhanh:
- Chạy: QuillBot runs a free plan plus Premium at $4.17 per month. CoWriter starts at $11.99 per month with no free tier.
- Phù hợp nhất cho: QuillBot suits students and biên tập viên who rewrite and polish existing text. CoWriter suits writers drafting long-form academic and web content.
- Điểm khác biệt chính: QuillBot refines writing you already have. CoWriter drafts new pages from a topic and an outline.
- Lựa chọn của chúng tôi: QuillBot, rated 4.2 against 3.8, because nine tools and a free version cover more of the writing process.
Two writers can face the same blank page and need opposite help.
One has a messy draft that needs tightening.
The other has nothing but a topic and a deadline.
QuillBot solves the first problem. CoWriter solves the second.
That single split explains almost every difference below.
Toàn cảnh
This Cowriter vs Quillbot comparison covers pricing, features, and ease of use.
We reviewed documentation, pricing pages, and user reviews for both AI writing tools.
Các cây bút của chúng tôi cũng đã dành thời gian trực tiếp tiếp xúc với từng người.
Những ghi chú đó xuất hiện trong phần "Những điều nhóm chúng tôi nhận thấy" bên dưới.
Here is a short side-by-side look before we dig in.
QuillBot là gì?
QuillBot là một hệ thống viết bằng trí tuệ nhân tạo. trợ lý built on natural language processing.
Rohan Gupta, Anil Jason, and David Silin founded it in 2017 at the University of Illinois.
Learneo acquired the company in September 2021.
Hiện tại, trang web này báo cáo có hơn 30 triệu người dùng hoạt động hàng tháng.
The paraphrasing tool rewrites text while keeping the original meaning intact.
What started as a rephrasing tool has grown into a full writing toolkit for students and professionals.
The user friendly interface makes the writing experience simple for beginners.
QuillBot helps you fix a draft rather than start one.
QuillBot Flow adds a word processor that keeps research, notes, and citations on one page.
Here is a walkthrough of how QuillBot works day to day.
🏆 Winner: QuillBot
Nine writing tools share one user interface. The free version never expires. Start there before you pay.
Bảng giá QuillBot
QuillBot pricing keeps three tiers. Here is the breakdown.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Miễn phí | Miễn phí (Mãi mãi) | Students testing the paraphraser tool |
| Phần thưởng | 4,17 mỗi tháng | Daily writing with no word caps |
| Kế hoạch nhóm | Giá tùy chỉnh | Departments and shared billing |
Giá được xác nhận vào tháng 7 năm 2026.
Dùng thử miễn phí: No card needed. The free version runs indefinitely with lower word limits per tool.
Đảm bảo hoàn tiền: QuillBot lists a three-day refund window on new Premium subscriptions.
📌 Ghi chú: QuillBot Premium unlocks unlimited paraphrasing words, every writing mode, and the plagiarism checker. The free tier caps each of those.
⚠️ Pricing conflict flagged: Our CSV lists Premium at 4.17 per month. Published sources put the monthly cost between $8.33 and $20 depending on subscription length. We show the CSV figure above and note the range here so you can check before you buy.
Những lợi ích chính của QuillBot
These are the QuillBot features that matter most in daily use.
- Seven writing modes: Standard, fluency, formal mode, simple, creative mode, expand mode, and shorten mode. You can compare paraphrases side by side before you commit.
- Grammar checker: Checking grammar and style corrections happens as you type. It flags spelling slips and complex sentences.
- Người tóm tắt: Pulls key points from long articles. Useful when research reading eats your day.
- Citation generator: Create citations in APA, MLA, or Chicago without leaving the page.
- Works where you write: The QuillBot extension covers major web browsers, and add-ins reach Microsoft Word and Google Docs.
- Mobile keyboard: The QuillBot keyboard is an AI writing keyboard for phones. QuillBot’s mobile keyboard brings keyboard modes, text and emoji prediction, prediction settings, and dark themes to a text message or a quick note.
- Translation support: Real-time translation covers more than 45 languages, including French, Spanish, German, and Chinese.
Những điều nhóm chúng tôi nhận thấy
Our writer used QuillBot on a research summary and a client letter over several days. Here is what stood out from that hands-on time:
Ưu điểm và nhược điểm của QuillBot
✅ Ưu điểm
- Free version runs forever with no expiry date
- Nine tools cover paraphrasing, grammar, summarizing and citations
- Browser extension and MS Word add-in fit an existing writing process
- Translation support reaches more than 45 languages
- Premium price sits below most AI writing tools
❌ Nhược điểm
- Paraphrasing sometimes returns awkward or unnatural phrasing
- Cái iOS app has been described as glitchy and prone to crashes
- Some refund requests went unanswered by the support team
- Grammar suggestions can miss context in complex sentences
CoWriter là gì?
CoWriter is an Công cụ AI that drafts long-form content from a topic.
It generates article ideas, then builds an outline, then fills the page.
The outlines read like long-form COMMENT articles rather than short blurbs.
Content marketers, web publishers, and doanh nghiệp nhỏ owners are the core audience.
Students also use it for research writing and academic drafts.
⚠️ Two different products share this name. This review covers CoWriter at cowriter.ai, the AI drafting tool. It is not Co:Writer Universal, the classroom accessibility app for iOS, Chrome, and Microsoft Edge. That one uses grammar smart and vocabulary smart word prediction, neuron word prediction, and flexible spelling to help kids who struggle with spelling. It adds speech to text, speech recognition, topic specific dictionaries, and a chuyển văn bản thành giọng nói feature that gets text read aloud. Giáo viên reach it through Google Classroom. If you want word suggestions, unlimited completion suggestions, or a way for a học sinh to speak and hear a draft, you want Co:Writer Universal instead.
CoWriter leans on speed rather than breadth of features.
Here is a closer look at how it handles a draft.
Runner Up: CoWriter
Built for writers facing tight deadlines. Outline builder and idea generation unstick ideas fast.
Bảng giá cộng tác viên viết bài
CoWriter runs two paid plans. There is no free tier.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Chuyên nghiệp | 11,99 đô la/tháng | Basic editing tool with 50 completion suggestions per day |
| Phần thưởng | 23,99 đô la/tháng | All Pro plan features plus VIP treatment |
Giá được xác nhận vào tháng 7 năm 2026.
Dùng thử miễn phí: A limited trial is available. It caps features rather than time.
Đảm bảo hoàn tiền: CoWriter does not publish a refund window. Cancel before renewal to avoid a second charge.
📌 Ghi chú: The Pro plan limits you to 50 completion suggestions per day. Heavy drafting sessions hit that ceiling quickly.
⚠️ Pricing conflict flagged: Our CSV still carries an outdated CoWriter row reading “Premium: $385, Pro: $20.00,” and one published source lists paid plans starting at $19 per month. The current rates are $11.99 and $23.99 per month, which is what the table above shows. Check the pricing page before you subscribe.
Key Benefits of CoWriter
Here is where CoWriter earns its keep.
- Outline builder: Turns a topic into a full section structure. That skips the slowest part of the writing process.
- Idea generation: Suggests angles when you need to unstick ideas. Creativity comes easier with a starting list.
- AI research paper generator: Drafts academic sections from a prompt. It gives students and researchers a first pass to edit.
- IEEE citation generator: Handles engineering and technical formats that many web tools skip.
- Custom writing styles and tones: Match a house tiếng nói across a batch of posts. Self expression survives the tự động hóa.
- Công cụ tạo kịch bản AI: Builds video and podcast scripts from the same outline engine.
Những điều nhóm chúng tôi nhận thấy
Our writer ran CoWriter through two article briefs and a short research outline. Here is what came out of that session:
CoWriter Pros & Cons
✅ Ưu điểm
- Outline builder structures long-form articles before you draft
- Idea generation helps unstick ideas on tight deadlines
- IEEE citation generator covers technical and engineering papers
- Custom writing styles and tones hold a house voice
❌ Nhược điểm
- No free version, so entry cost is $11.99 per month
- Output is detectable as AI generated content without editing
- No grammar checker or plagiarism checker built in
- Pro plan caps you at 50 completion suggestions per day
So sánh tính năng
Nine features separate these two AI writing tools. The summary table gives you the shape of it, then each section digs in.
| Tính năng | QuillBot | Đồng tác giả |
|---|---|---|
| Giá khởi điểm | Gói miễn phí $0 | 11,99 đô la/tháng |
| Phiên bản miễn phí | ✅ | ❌ |
| Công cụ diễn giải lại | ✅ | ❌ |
| Công cụ kiểm tra ngữ pháp | ✅ | ❌ |
| Người tóm tắt | ✅ | ❌ |
| Công cụ xây dựng dàn ý | ❌ | ✅ |
| Công cụ tạo trích dẫn | ✅ APA, MLA, Chicago | ✅ IEEE |
| Công cụ kiểm tra đạo văn | ✅ | ❌ |
| Công cụ phát hiện AI | ✅ Trí tuệ nhân tạo nhân tạo hóa | ✅ Detection proof |
| Translation Support | ✅ Hơn 45 ngôn ngữ | ❌ |
| Tốt nhất cho | Editing and polishing text | Drafting new long-form content |
1. Công cụ diễn giải lại và các phương thức viết
QuillBot: The paraphrase tool is the reason most people arrive. Seven writing modes let you shorten write, expand, formalise, or add a personal touch. You can compare paraphrases write side by side and pick the version that fits.
Đồng tác giả: There is no paraphraser here. CoWriter writes new sentences instead of rewording yours. Idea generation fills the gap when you want a different angle rather than a different phrasing.
⚠️ Cảnh báo: QuillBot’s paraphrasing sometimes returns awkward phrasing that reads oddly out of context. Read every rewrite before you keep it.
2. Grammar Checking and Style Corrections
QuillBot: The grammar checker catches spelling and punctuation errors as you type. Style corrections run alongside them. Reviews note that suggestions occasionally miss the mark, so treat them as prompts rather than orders.
Đồng tác giả: No dedicated grammar checking module exists. Custom writing styles and tones shape how the draft sounds, but you still need a separate editor for mechanics.
3. Summarizing and Key Points
QuillBot: The summarizer condenses long texts into key points or a short paragraph. It helps when you need to cut an essay’s word count or skim a stack of sources.
Đồng tác giả: Summarizing is not on the menu. The outline builder works the opposite direction, expanding a topic into sections rather than compressing text you already have.
4. Research and Long-Form Writing
QuillBot: The PDF converter turns source files into editable text, and QuillBot Flow keeps research and notes in one place. It supports research rather than writing the paper for you.
Đồng tác giả: The AI research paper generator drafts full academic sections from a prompt. For a student staring at a blank page the night before a deadline, that is the bigger time saver.
5. Công cụ tạo trích dẫn
QuillBot: The free citation generator creates citations in APA, MLA, and Chicago. Giving proper credit to original sources is the point, and it supports academic integrity directly.
Đồng tác giả: The IEEE citation generator serves engineering and computer science writers. That format is narrower than QuillBot’s set, but it is the one many technical departments demand.
6. Plagiarism Checker and Academic Integrity
QuillBot: The plagiarism checker scans a document and highlights passages that match published sources. It helps you create unique content that is not copied from others.
Đồng tác giả: There is no plagiarism scanner. Because the tool writes fresh text rather than rewording sources, overlap is less likely, but you have no way to verify that inside the app.
⚠️ Cảnh báo: Rewording a source to slip past a detector is still plagiarism. Both tools can be misused this way. Cite what you borrow.
7. AI Detection and AI Generated Content
QuillBot: The AI Humanizer reworks machine-written passages so they read less mechanically. It is aimed at editing output you already have, not producing it.
Đồng tác giả: AI detection proof mode targets the same problem from the drafting side. Published reviews still find CoWriter output detectable as AI generated, which is why human editing stays part of the job.
8. Idea Generation and Creativity
QuillBot: The AI chat answers questions and suggests angles inside the same user interface. Vocabulary and word suggestions arrive as you write rather than as a separate brainstorm step.
Đồng tác giả: Idea generation is a headline feature, and the AI script generator extends it to video and audio work. Collaboration with a tool can spark new ideas the same way a human co-writer does.
9. Translation Support and Web Browsers
QuillBot: Real-time translation covers more than 45 languages. The QuillBot extension runs in major web browsers, and add-ins reach MS Word and Google Docs so the tool follows you around the web.
Đồng tác giả: No translation and no browser extension. You work inside the CoWriter web app, then paste the draft wherever it needs to go.
10. Định giá & Chi phí
Here are the plans side by side.
| Gói cước | QuillBot | Đồng tác giả |
|---|---|---|
| Miễn phí | Miễn phí (Mãi mãi) | ❌ Không có gói miễn phí |
| Vé vào cửa đã trả phí | Premium: 4.17 per month | Pro: $11.99/month |
| Cấp cao hơn | ❌ None above Premium | Premium: $23.99/month |
| Đội | Team Plan: Custom Pricing | ❌ Không cung cấp |
QuillBot: A free version that never expires lowers the risk to zero. Premium at 4.17 per month is the cheaper paid entry point, and the Team Plan handles shared billing for a department.
Đồng tác giả: Pro costs $11.99 per month and Premium doubles that at $23.99. You are paying for drafting speed, not for a wide feature set, so the value depends on how much new content you publish.
Các kịch bản khác nhau
| Nếu bạn cần… | Chọn | Tại sao |
|---|---|---|
| To spend nothing | QuillBot | Free version, no expiry |
| To draft a full article fast | Đồng tác giả | Outline builder plus drafting |
| To polish text you wrote | QuillBot | Paraphraser and grammar checker |
| IEEE formatted citations | Đồng tác giả | Only tool here that covers it |
| To work inside MS Word | QuillBot | Add-in and browser extension |
| Thiết lập thân thiện với người mới bắt đầu | QuillBot | User friendly interface, free tier |
💰 Ngân sách của bạn
QuillBot lets you start free and stay free. CoWriter asks for $11.99 per month before you write a single page.
🔌 Bộ công nghệ của bạn
QuillBot plugs into Microsoft Word, Google Docs, and web browsers. CoWriter lives in its own web app, so you will copy and paste.
📝 Phong cách viết của bạn
If you write first and fix later, QuillBot refines what you produce. If you stall at the blank page, CoWriter gets words down.
🎓 Trình độ kinh nghiệm của bạn
Students on a trường học project learn faster with QuillBot because each tool does one visible job. CoWriter assumes you already know what a good outline looks like.
🆓 Dùng thử và bản demo miễn phí
Test both on the same brief before you pay. QuillBot’s free tier and CoWriter’s limited trial cost you nothing but an hour.
🛟 Các tùy chọn hỗ trợ
QuillBot’s support team draws mixed reviews, particularly on refunds. CoWriter is smaller, so expect slower replies during busy periods.
Hướng dẫn chuyển đổi
Already paying for one? Here is what changes if you move.
🔄 Switching from QuillBot to CoWriter?
✅ Những lợi ích bạn sẽ nhận được:
- An outline builder that structures a whole article
- IEEE citation formatting for technical papers
- Idea generation and an AI script generator
❌ Những gì bạn sẽ mất:
- The free plan and the paraphrasing tool
- Grammar checking, summarizing, and the plagiarism checker
- Browser extension, MS Word add-in, and translation support
📋 Cách chuyển đổi:
- Export saved documents from QuillBot Flow as text or Word files
- Create a CoWriter account and pick the Pro plan
- Rebuild your style presets, then cancel QuillBot Premium
🔄 Switching from CoWriter to QuillBot?
✅ Những lợi ích bạn sẽ nhận được:
- A free version and a cheaper paid tier
- Paraphraser, summarizer, grammar checker, and plagiarism checker
- Extensions for web browsers, MS Word, and Google Docs
❌ Những gì bạn sẽ mất:
- The outline builder and long-form drafting engine
- IEEE citation support
- The AI research paper generator and script tools
📋 Cách chuyển đổi:
- Copy finished drafts out of the CoWriter web app
- Sign up for QuillBot free and install the extension
- Run one draft through the paraphraser, then decide on Premium
Những điều mà bài đánh giá của chúng tôi chưa đề cập
This comparison focused on individual writers, students, and small content teams. We did not test either tool at department scale, and we did not evaluate the Co:Writer Universal accessibility app that shares the CoWriter name. New features shipping through sớm access programs were out of scope, as were long-term accuracy trends after bug fixes. If you publish at high volume or work in a regulated field, your priorities will differ from ours.
Phán quyết cuối cùng
| Loại | Người thắng |
|---|---|
| 💰 Giá cả | QuillBot |
| 🚀 Range of Tools | QuillBot |
| ✍️ Drafting New Content | Đồng tác giả |
| 🎯 Editing and Accuracy | QuillBot |
| 👶 Dễ sử dụng | QuillBot |
| 🔌 Tích hợp | QuillBot |
| 🎓 Academic Drafting | Đồng tác giả |
| 🏆 Người chiến thắng chung cuộc | QuillBot |
🏆 WINNER: QUILLBOT
QuillBot wins 5 out of 7 categories.
Phù hợp nhất cho: Students polishing essays, editors tightening drafts, and anyone who wants a free writing assistant that works inside Word and the browser.
These two tools sit at opposite ends of the writing process. QuillBot improves text that already exists. CoWriter produces text that does not exist yet.
CoWriter is the better pick if your bottleneck is the blank page and you publish on tight deadlines. The outline builder and idea generation genuinely save time there.
Neither one replaces writing skills. Both Công cụ AI hand you a draft that still needs a human read before it goes anywhere.
For most people, though, QuillBot covers more of the job for less money. QuillBot makes a useful tool at almost every editing stage, and that breadth benefits users who write daily.
Nine tools, a free tier, and a 4.2 rating against 3.8 make it the best AI writing assistant of the two.
So sánh thêm về QuillBot
Các lựa chọn thay thế cho QuillBot are easy to find. Here is how three of the closest rivals stack up.
QuillBot chiến thắng nhờ: Seven paraphrasing modes against Grammarly’s single rewrite, a cheaper premium version, and a built-in summarizer for cutting long documents.
Grammarly thắng ở các điểm sau: Sharper grammar checking on complex sentences, a stronger tone detector for professional communication, and wider app coverage across desktop and mobile.
QuillBot vs Writesonic
QuillBot chiến thắng nhờ: A free tier with no expiry, a plagiarism checker Writesonic lacks, and translation support across 45+ languages.
Writesonic thắng điểm ở các tiêu chí: Generating marketing copy from scratch, bulk article production for content creation teams, and built-in SEO briefs.
QuillBot vs Paperpal
QuillBot chiến thắng nhờ: Price, a broader writing toolkit beyond academia, and the ability to create citations in three common styles for free.
Paperpal thắng nhờ: Journal-specific language checks, manuscript submission readiness reports, and subject-aware edits tuned for research papers.
This video walks through several of those alternatives in more detail.
More of CoWriter Compared
CoWriter competes with a different group. These three overlap most.
Đồng tác giả vs. Jenni
CoWriter wins on: IEEE citation output, an AI script generator for video work, and custom tone presets that hold across a batch of posts.
Jenni thắng nhờ: Inline autocomplete while you type, a free daily word allowance, and citation insertion pulled from a live source library.
Đồng tác giả vs. Câu
CoWriter wins on: Academic drafting, a lower entry price, and script formats that Frase does not attempt.
Frase thắng nhờ: Search intent research baked into the brief, competitor content scoring, and a topic gap report before you draft.
Đồng tác giả vs. Khoa học không gian
CoWriter wins on: Producing a finished draft rather than notes, tone control, and general web content beyond academia.
SciSpace thắng nhờ: Explaining dense papers line by line, a searchable literature database, and answering questions against uploaded PDFs.
Câu hỏi thường gặp
Liệu QuillBot có thể bị trí tuệ nhân tạo phát hiện không?
Often, yes. Máy dò flag paraphrased text when sentence patterns stay predictable. Editing the output yourself lowers that risk more than any single setting does.
AI cộng tác viết có miễn phí không?
No. A limited trial exists, but there is no permanent free plan. Paid access starts at $11.99 per month on the Pro tier.
QuillBot có đang gian lận không?
Using it to reword a source and pass it off as yours is. Using it to tighten your own sentences is ordinary editing.
Người viết kịch bản phụ (Cowriter) làm những công việc gì?
It generates article ideas, builds outlines, and drafts long-form content. Research papers, scripts, and web articles are its main output types.
Liệu việc trả tiền cho QuillBot có đáng giá không?
If you paraphrase daily, yes. Premium removes word caps and unlocks every mode. Occasional users get real value from the free version alone.
English 
Spanish 
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German 
French 
Arabic 
Russian 
Portuguese 
Japanese 
Korean 
Italian 
Turkish 
Dutch 
Polish 
Indonesian 
Thai 
Vietnamese 