⚡ 快速结论：
- 定价： Grammarly has a free version and a Pro plan at $12 USD. CoWriter starts at $11.99/month with no free tier.
- 最适合： CoWriter suits long-form drafting and academic work. Grammarly suits editing, proofreading and spelling grammar checks.
- 主要区别： CoWriter writes new written content from scratch. Grammarly fixes and sharpens what you already wrote.
- 我们的选择： Grammarly, because the free version alone covers spelling and grammar for most people.
These two tools sit at opposite ends of the writing process.
CoWriter helps you create a first draft when the page is blank.
Grammarly waits until words exist, then cleans them up.
That one difference decides which tool fits your work.
Here is how each one performs on price, features and daily use.
概述
This Cowriter vs Grammarly comparison covers pricing, features and ease of use.
We reviewed documentation, pricing pages and user reviews for both tools.
我们的撰稿人也亲自体验了每一项功能。
这些笔记出现在下面的“我们的团队注意到”部分中。
By the end you will know which tool fits your writing.
什么是 CoWriter？
CoWriter is an AI writing 助手 built for long-form work.
It gives you article ideas, outlines and full drafts.
The outlines it builds resemble long-form SEO articles.
That makes it a fit for marketers and 小型企业 业主。
Students also use it for research papers and academic drafts.
Watch the walkthrough before you judge the writing toolkit.
共同编剧
Built for writers facing tight deadlines. Turns a rough topic into an outline in a few clicks.
合作撰稿人定价
CoWriter runs two paid plans. There is no permanent free tier.
| 计划 | 价格 | 最适合 |
|---|---|---|
| 专业版 | 每月 11.99 美元 | Basic editing tool with 50 completion suggestions per day |
| 优质的 | 每月 23.99 美元 | All Pro features plus VIP treatment and unlimited completion suggestions |
价格已于2026年7月核实。
免费试用： Yes. A limited trial lets you test idea generation and outlines before you pay.
退款保证： Not published. Cancel from your account page before the next billing date.
📌 笔记： Premium adds 早期的 access to new features and lifts the daily cap on suggestions. Pro caps you at 50 per day.
⚠️ Pricing conflict flagged: Our CSV lists CoWriter as “Premium: $385, Pro: $20.00”. The 2026 rates published by CoWriter are $23.99 and $11.99 per month. We show the 2026 rates above and are flagging the gap rather than quietly picking one.
Key Benefits of CoWriter
Here is what makes CoWriter worth a look:
- Speeds up drafting: It supplies article ideas, outlines and word suggestions. That shortens the gap between topic and first page.
- Long-form focus: The outline builder targets long articles, not short social posts. Structure comes before prose.
- Citation generator: An IEEE citation generator handles academic formatting. Useful for engineering and science papers.
- AI detection tools: A built-in AI detection check flags passages that read as ai generated. You still need human review.
- Style controls: Custom writing styles and tones adjust how each draft sounds. You can push it formal or casual.
- Idea generation: The idea tool helps unstick ideas when you struggle to start. Good for tight deadlines.
The benefits block below breaks the same ground visually.
我们的团队注意到了什么
我们的 作家 signed up for CoWriter and used it on real blog drafts. Here is what stood out from that hands-on time:
CoWriter Pros & Cons
✅ 优点
- Outline builder shapes long articles fast
- Idea generation helps beat the blank page
- IEEE citation generator supports academic writing
- Custom styles and tones per project
❌缺点
- Output is detectable as AI generated, so human editing is required
- No free version, only a limited trial
- Pro caps you at 50 completion suggestions per day
Grammarly是什么？
Grammarly is a writing assistant that checks spelling and grammar as you type.
It works as a 24/7 digital tutor rather than a plain spell checker.
The grammar checker catches subject-verb agreement and misplaced modifiers.
It also flags every misspelled word and each wordy sentence.
Beyond errors, it reads your writing style and audience.
Tone suggestions then help you land the right tone in any message.
The video below shows the editor in normal daily use.
🏆 优胜者：Grammarly
Real-time feedback inside the apps you already use. The free version covers spelling grammar checks with no word cap.
Grammarly定价
Grammarly offers three tiers. The paid tier is the premium version most people mean by Grammarly Premium.
| 计划 | 价格 | 最适合 |
|---|---|---|
| 自由的 | 0 美元 | Spelling and grammar checks with no word limit |
| 专业版 | 12美元 | Tone rewrites, vocabulary help and plagiarism detection |
| 企业 | 联系销售 | A team or company account with shared style rules |
价格已于2026年7月核实。
免费试用： The free version never expires. You can test the premium features before a premium subscription.
退款保证： Refund terms sit inside the account billing page. Cancel any time from that same screen.
📌 笔记： The free tier gives unlimited word counts for grammar spelling checks. Many rival tools cap that at a few thousand words.
⚠️ 警告： Plagiarism detection sits behind the paid plan only. Check your own work there before you submit written work anywhere.
Grammarly 的主要优势
Here is what Grammarly Premium helps you achieve:
- 实时反馈： Fixes appear as you type, so you focus on content instead of basic errors. That keeps your flow intact.
- 适用于所有地区： A browser extension plus desktop apps put it inside Google Docs, Microsoft Word and Slack. No copy and paste needed.
- Learn as you edit: Each suggestion carries a short note explaining the rule. You learn from mistakes instead of just accepting them.
- Clarity and 嗓音: It trims unnecessary words and swaps passive voice for active voice. The result reads like polished writing.
- Context awareness: Artificial intelligence tells commonly confused words apart using the surrounding context. It knows which “their” you meant.
- Mobile reach: The Grammarly mobile app and Grammarly keyboard cover typing on your phone in multiple languages, including Spanish, French, German, Portuguese and Italian.
The benefits panel below groups the same premium features by job.
我们的团队注意到了什么
Our writer ran Grammarly across email, documents and web forms for several days. Here is what stood out:
Grammarly 的优点和缺点
✅ 优点
- Free version has no word limit on grammar checks
- Works inside other apps without copy and paste
- Explains each suggestion so you learn the rule
- Plagiarism checker scans against billions of web pages
❌缺点
- Suggestions can be aggressive, such as adding unnecessary commas
- Less useful for creative writing than for non-fiction
- It supplements writing skill rather than replacing an editor
功能对比
We compared ten areas that matter in daily use. The table gives you the short version first.
| 特征 | 共同编剧 | Grammarly |
|---|---|---|
| 起价 | 每月 11.99 美元 | 0 美元（免费） |
| 免费版 | ❌ | ✅ |
| 语法检查器 | ❌ | ✅ |
| Full Draft Generation | ✅ | ✅ |
| 语气建议 | ✅ | ✅ |
| 引用生成器 | ✅ | ✅ |
| 抄袭检测器 | ❌ | ✅ |
| 人工智能检测 | ✅ | ✅ |
| 浏览器扩展 | ❌ | ✅ |
| 最适合 | Long-form drafting | Editing and proofreading |
1. Drafting Long-Form Content
共同编剧： This is the core job. You give it a topic and it returns a research paper draft or article body. The output arrives fast, which suits tight deadlines.
Grammarly： 生成式 人工智能工具 sit inside the editor and can draft or expand a passage. Drafting is a side job here, not the main event.
2. Grammar, Spelling and Proofreading
共同编剧： There is no dedicated grammar checker. Text arrives clean because AI wrote it, but you get no line-level proofreading pass on your own writing.
Grammarly： This is the strongest area. It catches every misspelled word, flags complex grammar issues and explains the fix so you learn the rule.
Proofreading runs as a separate pass once the grammar spelling sweep finishes.
⚠️ 警告： Grammarly can be aggressive with commas. Read each suggestion instead of clicking accept on everything, and ignore the ones that hurt your voice.
3. Tone Suggestions and Writing Style
共同编剧： You pick a style and tone before generation starts. It is a setting applied up front rather than live feedback on a finished sentence.
Grammarly： Tone suggestions read what you already wrote and compare it to your intended audience. It then proposes edits that shift the message warmer or firmer.
4. Citations and Research Support
共同编剧： The IEEE citation generator targets engineering and science papers. That is a narrow but genuinely useful niche for academic work.
Grammarly： Its citation generator covers the common academic formats. A separate citation finder tracks down the source behind a quote in your document.
The finder tool handles the research side of the same problem.
5. 抄袭检测
共同编剧： There is no plagiarism checker. The 无法检测 essay writer rewrites phrasing, which is a different job from checking source overlap.
Grammarly： Plagiarism detection ships with the paid plan and scans against billions of web pages. Students and content teams lean on it before publishing.
6. AI Detection and Humanizing
共同编剧： An AI detection check runs on drafts before you publish. Its own output is still detectable as ai generated, so human review stays part of the process.
Grammarly： 人工智能 探测器 scores a passage, and a separate humanizer rewrites stiff machine phrasing. The two tools work as a pair.
The humanizer handles the rewrite once the detector flags a section.
7. Outlines and Structure
共同编剧： The outline builder is the standout feature. It maps headings for a long article in a few clicks, which helps writers structure written content before drafting.
Grammarly： There is no outline builder. Snippets let a team save reusable blocks of text, which is closer to templating than structuring a story.
8. Idea Generation and Rewriting
共同编剧： Idea generation exists to unstick ideas when you stare at a blank page. It feeds angles and subtopics rather than polishing a sentence.
Grammarly： The paraphrasing tool rewrites a sentence you already own. It also lifts vocabulary and trims filler words for clarity.
9. Scripts and Free Extras
共同编剧： An AI script generator covers video and podcast formats. That widens the tool beyond blog posts and academic papers.
Grammarly： A free essay and paper checker sits outside the paid plan. Students use it for a quick pass before submitting academic work.
A free word counter handles length limits on the same page.
10. Platform Reach and Integrations
共同编剧： It runs as a web app. You draft in the browser and paste finished text into your editor, which adds a step to the writing experience.
Grammarly： The browser extension, desktop app, Grammarly mobile app and Grammarly keyboard cover most places you type. It is the most reliable option for working inside Google Docs and Microsoft Word without copy-pasting.
📌 笔记： Grammarly publishes user trust guidelines covering how your text is handled. Release notes list new features and bug fixes so you can see what changed.
11. 定价与成本
Here are the plans side by side.
| 计划级别 | 共同编剧 | Grammarly |
|---|---|---|
| 自由的 | ❌仅限试用 | 0 美元 |
| 入场费 | Pro: $11.99/month | Pro: $12 USD |
| 顶级 | Premium: $23.99/month | 企业：联系销售 |
| 计划数量 | 2 | 3 |
共同编剧： Entry pricing is a few cents under Grammarly, but you must pay to use it at all. Premium at $23.99 buys unlimited completion suggestions and early access to new features.
Grammarly： The free version does real work, so the paid tier is a choice rather than a gate. Enterprise pricing is quoted per team.
💡 专业提示： Run Grammarly free for two weeks first. If the only thing you miss is plagiarism detection, the $12 upgrade is an easy call.
不同场景
| 如果您需要…… | 选择 | 为什么 |
|---|---|---|
| Zero budget | Grammarly | Free version with no word cap |
| First drafts written for you | 共同编剧 | Outline builder and full drafts |
| Correct spelling and grammar | Grammarly | Dedicated grammar checker |
| IEEE academic citations | 共同编剧 | Format-specific citation generator |
| Writing help on your phone | Grammarly | Mobile app and keyboard |
| 适合初学者的设置 | Grammarly | Install once, works everywhere |
💰 您的预算
Grammarly costs nothing to start and stays useful at that price. CoWriter asks for $11.99 before you write a single letter.
🔌 您的技术栈
If your work lives in Google Docs, Slack and email, Grammarly meets you there. CoWriter expects you to come to its web app.
📝 你的写作风格
Writers who value creativity and their own voice may find generated drafts flat. Grammarly leaves your sentences yours and only nudges them.
🎓您的经验水平
New writers learn faster with a tool that explains each correction. Grammarly gives that; CoWriter simply hands you finished stuff.
🆓 免费试用和演示
Test both on one real project, for example a client article. That single test tells you more than any review.
🛟 支持选项
Grammarly has helpful docs used around the world and an active community. CoWriter support runs through email from your account.
切换指南
Already paying for one of them? Here is what changes if you move.
🔄 Switching from CoWriter to Grammarly?
✅ 你将获得：
- A real grammar checker with explanations
- A free version you can fall back on
- Support for multiple languages on mobile
❌ 你会失去什么：
- The outline builder for long articles
- IEEE-specific citation formatting
- The AI script generator
📋 如何切换：
- Copy your saved drafts out of CoWriter
- 创建免费的 Grammarly 帐户
- Install the browser extension and paste your work in
🔄 Switching from Grammarly to CoWriter?
✅ 你将获得：
- Full first drafts instead of edits
- An outline builder for long-form work
- Idea generation when you are stuck
❌ 你会失去什么：
- Live spelling and grammar feedback in every app
- 抄袭检测器
- Mobile typing help on your phone
📋 如何切换：
- Export documents from the Grammarly editor
- Start a CoWriter trial and pick a plan
- Rebuild your house style inside custom tones
我们的评测没有涵盖的内容
This comparison focused on solo writers, students and small content teams. We did not test enterprise rollouts, shared style guides across large teams, or either tool’s API. Our notes reflect the July 2026 versions of both products. If you manage fifty seats, your priorities will differ from what we covered here.
最终判决
| 类别 | 优胜者 |
|---|---|
| 💰 定价 | Grammarly |
| ✍️ Draft Generation | 共同编剧 |
| 🔤 Grammar and Spelling | Grammarly |
| 🎭 Tone and Style Control | Grammarly |
| 📚 Academic Citations | 共同编剧 |
| 🔍 抄袭检测 | Grammarly |
| 🔌 平台覆盖范围 | Grammarly |
| 🏆 总冠军 | Grammarly |
🏆 获奖者：Grammarly
Grammarly wins 5 out of 7 categories.
最适合： daily editing, 学生 essays, business email, and anyone who wants mistake free text without paying first.
These are two different products aimed at two different moments. CoWriter is an ai powered drafting engine for people facing a deadline and an empty document.
Grammarly is an editing layer that sits on top of whatever you already wrote. Its ai assistance improves clarity, fixes errors and keeps your own voice intact.
CoWriter earns its place if you publish long articles weekly and need structure fast. The outline builder alone saves real hours.
For everyone else, Grammarly is the better first purchase. We hope this makes the choice simpler: pick CoWriter to produce words, and Grammarly to turn words into great writing.
More of CoWriter Compared
Here is how CoWriter measures up against nearby options:
共同作者 vs 珍妮
CoWriter wins on: IEEE citation formatting, script generation for video, and per-project tone presets
珍妮获胜的条件是： in-line autocomplete while you type, a usable free daily word allowance, and a larger source library
共同作者 vs Writesonic
CoWriter wins on: academic paper output, simpler two-plan pricing, and outline depth for long posts
Writesonic 赢得： short-form ad copy templates, bulk generation, and built-in publishing workflows
共同作者 vs Paperpal
CoWriter wins on: generating drafts from scratch, idea prompts, and broader content formats beyond research
Paperpal 赢得： journal submission checks, a Microsoft Word add-in, and language editing built for non-native authors
与Grammarly相比，Grammarly的功能更多
Here is how Grammarly holds up against other writing software:
Grammarly 与 QuillBot
Grammarly 在以下方面胜出： app coverage without copy-pasting, explanations attached to each fix, and mobile keyboard support
QuillBot 胜出： paraphrasing modes, a cheaper paid tier, and a summarizer for long source documents
Grammarly 在以下方面胜出： everyday 商业 writing, a free tier with no word cap, and browser-wide availability
Paperpal 赢得： subject-specific academic phrasing, manuscript readiness reports, and journal formatting rules
Grammarly 与 赛德
Grammarly 在以下方面胜出： depth of grammar correction, tone analysis, and plagiarism scanning
Sider 胜出： chatting with any web page, switching between several AI models, and summarizing videos
常见问题解答
是 cowriter 还是 co writer？
The AI drafting tool at cowriter.ai is written as one word. A hyphenated “co-writer” usually means a human collaborator or a separate classroom accessibility app.
共同编剧是做什么的？
It generates article ideas, outlines and full drafts. Extra features include an IEEE citation generator, an AI script generator and custom style controls.
共同写作人工智能是免费的吗？
No. There is a limited trial, then paid plans only. Pro costs $11.99 per month and Premium costs $23.99 per month.
人工智能辅助写作好用吗？
It is strong for outlines and long-form first drafts. Output reads as machine written, so plan on editing every draft before you publish it.
有没有完全免费的AI写作工具？
Grammarly’s free version is the closest. It covers unlimited grammar and spelling checks, though drafting and plagiarism detection need the paid plan.
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