Cowriter vs Quillbot: 2025 年にあなたのライティングを向上させるのはどちらでしょうか?

執筆者 | 最終更新日 Sep 9, 2025

勝者
共著者
4.5
  • AI Detection Proof
  • 引用ジェネレータ
  • Outline Builder
  • Custom Writing Styles
  • Idea Generator
  • Fast-Track Support
  • Paid Plans from $11.99
準優勝
QuillBot
3.0
  • The Paraphraser
  • 文法チェッカー
  • Summarizer
  • Co-Writer
  • Quillbot Keyboard
  • 無料プランあり
  • Paid Plans from $4.17
Cowriter vs Quillbot

Struggling to write something amazing? You’re not alone!

These days, there are fantastic AIツール that can help you supercharge your writing. Two of the most popular are Cowriter and Quillbot. But which one is right for あなた?

In this post, we’ll break down the key differences between Cowriter vs Quillbot.

We’ll look at their features, pricing, and what they’re best at.

By the end, you’ll know which tool will help you write better, faster, and more confidently. 

さあ、始めましょう!

概要

To give you the most accurate comparison, we’ve spent weeks testing both Cowriter and Quillbot.

We’ve used them for various writing tasks, from crafting emails and blog posts to generating creative content and checking grammar.

This hands-on experience gives us unique insights to share with you.

共著者CTA
4.55点満点中

Want to write 5X faster? Try CoWriter today! Our users report boosting their writing speed by over 300%. Start your free trial and see for yourself!

価格: It has a Free Plan. Paid Plan Starts at $11.99/month.

主な特徴:

  • Grammar & Style Checker
  • Sentence Rewriter
  • Paraphrasing Tool
クイルボット
35点満点中

Ready to transform your writing? Over 50 million users have already experienced Quillbot’s powerful paraphrasing capabilities.

価格:  You can try it for free. Paid plan starts at $4.17/month

主な特徴:

  • Paraphrasing tool
  • Grammar checker
  • Summarizer

What is Cowriter?

Ever feel stuck staring at a blank page? Cowriter can help! It’s like having a super-smart writing buddy in your computer.

Need to write a blog post, an email, or even a poem?

Cowriter can help you generate ideas, write different kinds of creative 제니 vs 라이트소닉: 2025년 최고의 AI 작가 7 formats, and even check your work for mistakes. Pretty cool, right?

また、私たちのお気に入りを探索してください Cowriter alternatives

共著者のホームページ

私たちの見解

共著者CTA

CoWriterは、ライティングサポートが必要な方にとって貴重なツールです。ディスレクシアやその他の学習障害のある方にも役立ちます。しかし、上級レベルの方には最適な選択肢ではないかもしれません。 作家 または研究者。

主なメリット

  • スペル、文法、句読点に関するリアルタイムのサポートを受けられます。
  • 文章の流暢さと正確さを向上させます。
  • 作家としての自信を築きましょう。
  • さまざまな便利なライティング ツールにアクセスできます。

価格

CoWriter では、無料トライアルと、ニーズに応じたさまざまなサブスクリプション オプションを提供しています。

  • プレミアム: 月額 23.99 ドル – プロ プランの全機能、VIP 待遇。
  • Pro: 月額 11.99 ドル – 基本編集ツール、1 日あたり 50 件の完成提案。
共著者の料金

長所

  • 生産性の向上
  • 創造性の向上
  • 精度の向上
  • 多用途なアプリケーション
  • カスタマイズ可能なライティングスタイル

短所

  • 過度の依存
  • 精度の限界
  • 倫理的な懸念
  • プライバシーに関する懸念
  • 限られた創造性

What is Quillbot?

したい 作る your writing shine? Quillbot is here to help!

It’s a handy tool to reword your sentences, check your grammar, and even summarize long articles.

Think of it as your writing assistant, always ready to polish your work.

また、私たちのお気に入りを探索してください Quillbot alternatives

Quillbotの紹介

私たちの見解

クイルボット

文章を劇的に変える準備はできていますか?5,000万人以上のユーザーがQuillbotの強力なパラフレーズ機能をすでに体験しています。今すぐお試しください!

主なメリット

  • 正確さ: 一般的な AI 検出で約 90% の精度を実現します。
  • 誤検知: 誤検出率が妥当であることで知られており、通常は 5% 未満です。
  • 保証: プレミアムプランには 3 日間の返金保証が付いています。
  • Features: AI 生成テキストと AI 支援人間テキストを区別し、言い換えおよび文法ツールを統合し、短いテキストの無料スキャンを提供し、詳細な分析レポートと使いやすいインターフェースを提供します。

価格

すべての計画は 毎年請求されます。

  • Free: 月額0ドル。
  • プレミアム: 月額4.17ドル。
  • チームプラン: ニーズに応じて価格をカスタマイズします。
クイルボット

長所

  • 使いやすい。
  • 多彩な機能。
  • 時間の節約。
  • 文章力が向上します。
  • 分析レポート。

短所

  • ぎこちない言い回しをすることがあります。
  • 無料版の制限事項。
  • それだけに頼るべきではありません。
  • プレミアムサブスクリプションの費用。

機能比較

Let’s dive deeper into specific features to see how Cowriter and Quillbot compare.

Understanding these differences will help you choose the best tool to enhance your writing process.

1. Word Prediction & Suggestions

  • Cowriter: This tool truly shines with its “neuron word prediction.” It’s designed to anticipate your words based on context, grammar, and even your personal writing style. It offers vocabulary smart word prediction and unlimited completion suggestions, which can really help you unstick ideas and maintain your writing flow.
  • Quillbot: While Quillbot doesn’t focus as heavily on real-time word prediction as Cowriter, it does offer word suggestions within its paraphrasing and other AI writing tools to help you find better vocabulary and phrases.

2. Grammar & Style Corrections

  • Cowriter: Provides robust grammar smart corrections and also focuses on flexible spelling, which is great for students or those with unique spelling patterns. It aims to improve the quality of your writing by suggesting style corrections beyond just basic grammar.
  • Quillbot: Features a comprehensive grammar チェッカー that identifies mistakes and offers clear suggestions. Its various writing modes, like “Fluency” and “Formal,” directly influence style to enhance your writing process.

3. Speech-to-Text & Text-to-Speech

  • Cowriter: Integrates speech recognition, allowing you to speak your thoughts and have them converted into text. It also offers a テキスト読み上げ feature, so you can hear your text read aloud, which is excellent for catching errors and improving self-expression.
  • Quillbot: Has a speech to text function for dictation, making it easier to get your thoughts down. It also includes a text to speech feature, enabling you to listen to your written content, which can help students and 教師.
cowriter citation generator

4. AI Detection

  • Cowriter: Incorporates AI detection to help users understand if their content might be flagged as AI generated. This is important for maintaining originality, especially for academic work or professional content.
  • Quillbot: Comes with a built-in AI Detector that can analyze text and report the likelihood of it being AI generated, a crucial feature in today’s landscape with tools like ChatGPT.

5. Translation Support

  • Cowriter: Offers translation support, allowing you to work with text in multiple languages, broadening your reach and helping you with global communication.
  • Quillbot: Provides strong translation support, enabling you to translate text into many languages, which is very helpful for diverse writing goals.

6. Writing Toolkit & Modes

  • Cowriter: Acts as a comprehensive writing toolkit, providing various features to assist with different writing tasks, from generating marketing copy to creating full articles.
  • Quillbot: Offers distinct writing modes within its paraphraser (like “Standard,” “Formal,” “Creative mode,” and “Expand”) which are integral to its features. Quillbot is a paraphrasing tool first, but its diverse modes make it versatile.

7. Integrations & Compatibility

  • Cowriter: Can integrate with platforms like Microsoft Word and Google Classroom, making it a valuable tool for students and teachers alike, allowing you to work where you already are.
  • Quillbot: Offers a user-friendly interface and popular extensions, including a Quillbot Chrome extension and integrations with Microsoft Word. This makes it extremely easy to use across the web.
クイルボット

8. Research Capabilities

  • Cowriter: Features an AI research assistant designed to help you find relevant information quickly, streamlining your research process, especially when facing tight deadlines.
  • Quillbot: While not a dedicated research assistant, Quillbot’s summarizer can help you quickly grasp the main points of research papers, which indirectly aids research capabilities.

9. Vocabulary & Dictionaries

  • Cowriter: Leverages its neuron word prediction and flexible spelling to enhance your vocabulary, providing topic specific dictionaries to refine your word choices and improve the quality of your writing.
  • Quillbot: Boosts vocabulary through its paraphraser’s synonym suggestions and various writing modes. While it doesn’t emphasize topic-specific dictionaries as much, its overall aim is to improve the quality of your writing by offering diverse word choices.

What to Look for When Choosing an AI Writing Tool?

When picking an AI writing tool, you want something that truly fits your needs.

Whether you’re tackling academic essays, crafting personal statements, or creating top-ranking blog posts. Here’s what to consider:

  • Overcome writer’s block: Does the tool help you start writing easily and smoothly? Look for features like AI autocomplete that predict your next words or help generate ideas. This is key for beating writer’s block.
  • Content generation vs. paraphrasing: Do you need help generating original text, like for your next research paper on climate change, or do you mostly need to rephrase existing content? A ジェニー・AI review will highlight its generation capabilities, while a Quillbot review will focus on its strong paraphrasing.
  • Academic features: For academic work, can it add citations and handle in-text citations for a research paper? Some tools are specifically designed for academic writing.
  • Ease of use & accessibility: Is it user-friendly? Consider if there’s a Quillbot keyboard or AI writing keyboard functionality for mobile. Is there a Quillbot’s mobile keyboard? Look for information on introducing in app subscriptions for easy access.
  • Overall value: Does it offer an amazing tool set for its price? Check Quillbot features and see if a Quillbot Premium review suggests good value for your money.

最終評決

So, which tool comes out on top in this AI review? It’s a close call, but 共著者 takes the crown for us! 👑

Why? Because it’s a fantastic all-in-one writing space. It’s like having an AI co-writer, a research assistant, and a grammar checker all rolled into one.

Cowriter is a tool that can assist with different types of content, from posts and articles to social media キャプション.

Plus, it has some really cool AI features, like plagiarism detection and the Cowriter Chrome extension.

While Quillbot’s paraphrasing tool is fantastic, Cowriter offers more for the whole writing process.

But hey, that’s just our opinion! The best AI tools are the ones that best suit あなたの ニーズ。

We encourage you to test them before committing.

Both Cowriter and Quillbot offer free trials or premium versions. Try them out and see which helps you improve your writing skills and boost productivity!

More of CoWriter

  • CoWriter vs Paperpal: Paperpal is tailored for academic refinement, whereas CoWriter offers broader AI writing assistance, including essay composition and idea generation.
  • CoWriter vs Yomu: Yomu helps users understand research papers by offering summarization, while CoWriter serves as a more versatile AI writing assistant for varied content needs.
  • 共同執筆者 vs Jenni: Jenni excels in content generation with research integration, while CoWriter emphasizes refining existing text and improving writing confidence.
  • CoWriter vs Writesonic: Writesonic specializes in diverse content formats with a strong marketing focus, while CoWriter emphasizes long-form content creation and overcoming writer’s block.
  • CoWriter vs Frase: Frase assists with SEO-optimized content creation and research, whereas CoWriter is designed as a more general AI writing tool for different writing tasks.
  • CoWriter vs Elicit: Elicit directly answers research questions from papers, contrasting with CoWriter’s function as an AI aid for the writing process itself.
  • CoWriter vs SciSpace: SciSpace helps understand and analyze scientific papers, unlike CoWriter, which is built to assist in the creation of various written content.
  • CoWriter vs Scite: Scite evaluates research reliability through citation analysis, a function different from CoWriter’s writing enhancement capabilities.
  • CoWriter vs Quillbot: Quillbot primarily paraphrases and summarizes text, while CoWriter offers a wider range of AI writing assistance features.
  • CoWriter vs Grammarly: Grammarly focuses on grammar, spelling, and style checking, whereas CoWriter provides broader writing support, including content generation.
  • CoWriter vs Paperguide: Paperguide simplifies complex research concepts and aids literature review, differing from CoWriter’s role as a general AI writing assistant.

More of Quillbot

  • クイルボット vs ペーパーパル: Quillbot offers versatile paraphrasing and summarization, whereas Paperpal is tailored for academic writing enhancement with detailed feedback.
  • クイルボット vs ジェニー: Quillbot excels in paraphrasing and grammar checks, while Jenni focuses on AI-powered content generation for varied writing needs.
  • クイルボット vs ヨム: Quillbot provides strong paraphrasing and citation tools, while Yomu emphasizes AI text generation and streamlined citation management for research.
  • Quillbot vs Writesonic: Quillbot is known for its paraphrasing and style adjustments, while Writesonic specializes in generating diverse marketing and blog content.
  • クイルボット vs. センテンス: Quillbot focuses on rephrasing and improving existing text, whereas Frase aids in SEO-driven content research and creation.
  • Quillbot 対 CoWriter: Quillbot offers paraphrasing and grammar assistance, while CoWriter aims to provide a comprehensive AI writing experience for clarity and precision.
  • Quillbot vs Elicit: Quillbot helps refine writing through paraphrasing, while Elicit directly answers research questions using information extracted from papers.
  • Quillbot vs SciSpace: Quillbot aids in rephrasing and summarizing, whereas SciSpace is designed for efficiently understanding and analyzing scientific literature.
  • Quillbot vs Scite: Quillbot helps improve writing clarity, while Scite assists in evaluating research reliability through citation context.
  • Quillbot vs Grammarly: Quillbot is primarily a paraphrasing and summarizing tool, while Grammarly focuses on comprehensive grammar, spelling, and style checks.
  • Quillbot 対 Paperguide: Quillbot assists with rephrasing and summarizing text, whereas Paperguide helps navigate and understand scientific literature.

よくある質問

Is Quillbot better than ChatGPT?

It depends on your writing goals! Quillbot is a paraphrasing tool that excels at rewording and improving existing text. チャットGPT is a powerful AI chatbot that can generate creative text formats, translate languages, and answer your questions informally.

What are some good Quillbot alternatives?

Cowriter could be a good option if you’re looking for alternatives with similar features. It offers paraphrasing, grammar checking, and even AI research assistance. Other popular choices include Wordtune and 碧玉.

Can these AI writing assistants help me with marketing copy?

Absolutely! Both Cowriter and Quillbot can help you enhance your writing process and improve the quality of your marketing copy. They can help you find relevant keywords, rephrase text to ensure accuracy, and even generate creative content ideas.

Which tool is best for academic writing?

Quillbot might have a slight edge for academic writing. Its paraphrasing tool and citation ジェネレータ are extremely easy to use and can help you improve the quality of your research papers and essays.

How can I choose the best tool for my needs?

We analyzed their strengths and weaknesses in this post, but the best way to choose a tool is to try it yourself! Cowriter and Quillbot offer free trials, so you can test their features and see which best suits your needs.

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