Writesonic vs Quillbot: Which AI Writer Wins in 2025?

por | Last updated Jul 26, 2025

Winner
QuillBot
4.8
  • The Paraphraser
  • Grammar Checker
  • Summarizer
  • Co-Writer
  • Quillbot Keyboard
  • Free plan available
  • Paid Plans from $4.17
Runner Up
Writesonic
3.5
  • AI Chatbot
  • Multiple AI Models 
  • Automated Research Tool
  • AI Optimized Campaigns
  • Tailored Content Generation
  • Try For Free
  • Paid Plans from $16
writesonic vs quillbot

Choosing the right AI writing tool can be a real headache.

There are so many options out there, and they all promise amazing results.

Two of the most popular are Writesonic and Quillbot.

But which one is actually better?

In this post, we’ll dive deep and compare Writesonic vs Quillbot head-to-head. 

Let’s get started!

Overview

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

We’ve used them to write different types of content, from blog posts and articles to social media captions and marketing emails.

This hands-on experience gives us a unique perspective on the strengths and weaknesses of each tool.

Quillbot
4.8out of 5

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

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

Key Features:

  • Paraphrasing tool
  • Grammar checker
  • Summarizer
Writesonic
3.5out of 5

Ready to supercharge your content creation? Writesonic offers a powerful suite of AI tools to help you write faster and better.

Pricing: Try For Free. Pricing Plan Starts at $16/month.

Key Features:

  • Article Writer 4.0
  • Chatsonic
  • Photosonic AI

What is Quillbot?

Ever feel like you’re stuck in a writing rut? Quillbot can help!

It’s like having a super-powered thesaurus and editor all in one. Need to rephrase a sentence? Want to find just the right word?

Quillbot’s got you covered. 

It’s especially awesome for students and anyone who writes a lot.

Also, explore our favorite Quillbot alternatives

Quillbot Introduction

Our Take

Quillbot

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

Key Benefits

  • Accuracy: Achieves around 90% accuracy for general AI detection.
  • False Positives: Known for a reasonable false positive rate, typically under 5%.
  • Warranty: Offers a 3-day money-back guarantee on premium plans.
  • Features: Distinguishes AI-generated from AI-assisted human text, integrated with paraphrasing and grammar tools, offers free scans for shorter texts, provides detailed analysis reports, easy to use interface.

Pricing

All the plans will be billed annually.

  • Free: $0/month.
  • Premium: $4.17/month.
  • Team Plan: Custom pricing based on your needs.
Quillbot Pricing

Pros

  • User-friendly.
  • Versatile features.
  • Time-saving.
  • Improves writing.
  • Analysis reports.

Cons

  • Can produce awkward phrasing.
  • Free version limitations.
  • Shouldn’t be solely relied upon.
  • Cost of premium subscription.

What is Writesonic?

Need to create a ton of content fast? Writesonic is your go-to AI writing tool!

It can whip up blog posts, articles, social media captions, you name it.

It’s like having a whole team of writers at your fingertips. Think of it as your content creation superpower!

Also, explore our favorite Writesonic alternatives

Writesonic

Our Take

Writesonic

Ready to supercharge your content creation? Writesonic offers a powerful suite of AI tools to help you write faster and better.

Key Benefits

  • Article Writer 4.0: This powerful feature generates high-quality, long-form articles in seconds, complete with SEO optimization.
  • Chatsonic: Need a creative brainstorming partner? Chatsonic is an AI chatbot that can help you generate ideas, write different kinds of creative content, and answer your questions in an informative way.
  • Photosonic AI: Create stunning, unique images from text prompts with Photosonic, adding a visual punch to your content.

Pricing

Writesonic offers a variety of plans to suit different needs and budgets:

  • Basic: $16/month/billed annually
  • Lite: $39/month/billed annually
  • Standard: $79/month/billed annually
  • Professional: $199/month/billed annually
  • Advanced: $399/month/billed annually
writesonic pricing

Pros

  • I love the diverse templates.
  • It generates unique content.
  • Writesonic offers great value.
  • The chatbot is very helpful.

Cons

  • It can be overwhelming at first.
  • The quality can be inconsistent.
  • It lacks a built-in plagiarism checker.

Feature Comparison

We’re ready to dive into the core of our comparison! In this section.

We’ll break down the features Quillbot keyboard and Writesonic features to give you a clearer picture of what each AI tool offers.

1. AI Writing Capabilities

  • Writesonic AI: This is a powerful AI writing tool designed for comprehensive content creation. It can write articles, blog content, website content, social media posts, ad copy, and even generate landing pages. It’s built to produce high quality content across various formats, making it an excellent starting point for your content strategy.
  • Quillbot: Primarily known as a paraphrasing tool, Quillbot’s AI writing capabilities are more focused on rephrasing existing text.4 While it can assist in generating ideas and improving writing skills, its direct content generation for new pieces is limited compared to Writesonic.

2. Paraphrasing and Rewriting

  • Writesonic: Offers a built-in paraphrasing tool to rewrite existing content.5 While effective, it’s one of many Writesonic features.
  • Quillbot: This is where Quillbot truly shines. Its core strength lies in its advanced paraphrasing tool with various writing modes like Standard, Fluency, Formal, Academic, Creative, Shorten, and Expand. This allows for nuanced control over how text is rephrased.

3. SEO Optimization

  • Writesonic: Offers robust SEO optimization features. It helps generate SEO content and SEO optimized content that ranks well on search engines. It includes tools for keyword research, and can integrate with Google Search Console to provide relevant details and insights for content gap analysis. There’s also an SEO checker to ensure your blog content is optimized.
  • Quillbot: While Quillbot’s grammar checker and readability improvements can indirectly aid SEO by enhancing content quality, it lacks dedicated SEO optimization tools like keyword research or direct integration with platforms like Google Search Console for detailed review of search performance.

4. Brand Voice and Tone

  • Writesonic: This AI writing tool allows users to define a specific brand voice, ensuring all AI generated content aligns with your brand’s tone. This is crucial for maintaining consistency across your content strategy and multiple social media posts.
  • Quillbot: Quillbot offers various writing modes that can adjust the tone of the output, but it doesn’t offer the same level of granular control or the ability to deeply learn and apply a specific brand voice like Writesonic.
Quillbot

5. Long-Form Content Generation

  • Writesonic: A strong contender for long-form content. It can write articles and blog content that are extensive and detailed, making it a valuable resource for serious bloggers and marketers. It’s designed to assist with the entire content creation process.
  • Quillbot: While useful for refining sections of long-form content, Quillbot is not built for generating entire long articles from scratch. Its strengths lie more in editing and rephrasing existing text.

6. Grammar and Plagiarism Checking

  • Writesonic: Includes a grammar checker and can assist in producing original quality content.
  • Quillbot: Offers a comprehensive grammar checker and a plagiarism checker as part of its Quillbot features. This is an amazing tool for ensuring academic integrity and polishing writing skills.

7. Integration and Accessibility

  • Writesonic: Provides unlimited access to a wide array of Writesonic features and integrates with other AI writing tools. It also boasts chat tools like Chatsonic AI Chat Assistant, which can pull real time data for more accurate and timely content.
  • Quillbot: Offers extensions for browsers and Microsoft Word. Quillbot’s mobile keyboard is a convenient feature for on-the-go editing, with the Quillbot keyboard also introducing in app subscriptions for premium access. It’s a great tool for quick edits.
Writesonic content gap analytics

8. Bulk Content Generation

  • Writesonic: A standout feature for advanced users is its capability for bulk content generation. This allows you to produce many social media posts, ad copy, or other short-form quality content efficiently.
  • Quillbot: Does not offer direct bulk content generation. Its focus is on refining individual pieces of content rather than mass production.

9. SEO Tools and Integrations

  • Writesonic: Offers deep SEO integrations beyond just keyword suggestions, including the ability to connect with Google Search Console for performance insights, helping to write SEO optimized content. It can provide in depth research for seo content.
  • Quillbot: While it indirectly aids SEO through improved readability, Quillbot lacks advanced SEO tools such as automated internal linking or direct integrations for content gap analysis and keyword tracking beyond basic suggestions.23 Its strength lies in refining text, not comprehensive SEO optimization.

What to Look For When Choosing an AI Writing Tool?

When navigating the world of AI tools for your writing process, here are some key insights and things to consider, beyond just the direct comparisons:

  • Diverse Functionality: Does the tool offer more than just basic text generation? Look for features that support your entire content creation process, from brainstorming content ideas to generating social media posts and ad copy.
  • Quality of Output: Test the tool’s ability to produce high-quality content that sounds natural and aligns with your brand voice. Read a Writesonic review or a Quillbot review to gauge user satisfaction with content quality.
  • SEO Capabilities: For anyone involved in digital marketing, robust SEO optimization features are crucial. Can it help you create seo content and seo optimized content? Look for integrations with tools like Google Search Console and features for content gap analysis.
  • Flexibility and Customization: Does it offer various writing modes, like Quillbot’s creative mode? Can it adapt to a specific writing style and allow you to fine-tune the output? This is where an ai writing keyboard or Quillbot’s mobile keyboard can offer surprising convenience.
  • Ethical AI Use: Consider the tool’s stance on producing undetectable AI and Writesonic content and its overall approach to artificial intelligence.
  • Support and Resources: Look for a tool that offers good customer support and a valuable resource base, especially if you’re an advanced user or just starting.
  • Scalability: Does the tool cater to bulk content generation or long-form content if that’s a need? Can it handle generating YouTube title ideas as well as full articles?
  • Pricing Structure: While Quillbot offers a free plan, it’s important to compare software prices and understand the full cost if you need all the features. Some tools, when vs Writesonic based on pricing plans, might seem more expensive but offer better value for all the features. Don’t forget to check Quillbot Premium review if considering an upgrade.
  • Data Handling: For businesses, understanding custom data retention policies is important, especially if you plan to pull real-time data.
  • Beyond the Basics: Look for unique features like automated internal linking or specialized chat tools like Chatsonic AI Chat Assistant. These extra AI tools can significantly streamline your workflow.
  • User Feedback: Always consider reviews to make the best choice. The experiences of other AI writing tools users often provide relevant details that official marketing might miss.

Final Verdict

In this software comparison, Writesonic emerges as the better AI tool overall.

While Quillbot is an AI that offers a free plan and excels as a paraphrasing tool, Writesonic offers a wider range of features and greater flexibility.

Writesonic can be used for various writing tasks, including creating undetectable AI articles, blog posts, and marketing materials.

It also provides more control over tone and integrates seamlessly with other platforms.

We’ve based this Writesonic comparison on extensive testing and reviews, comparing it not only to Quillbot but also to other popular AI writing assistants like ProWritingAid and Chatsonic.

We considered factors like ease of use, content generation capabilities, and the ability to produce undetectable AI and Writesonic-generated text.

When comparing Quillbot vs Chatsonic vs Writesonic, Writesonic stands out for its versatility.

Users can input their ideas and watch Writesonic transform them into polished, professional content.

While Quillbot also offers a free plan, Writesonic’s comprehensive features and capabilities make it a more powerful and versatile choice.

More of Writesonic

Here’s a brief comparison of Writesonic with the listed alternatives:

  • Writesonic vs Paperpal: Writesonic excels in content creation; Paperpal specializes in refining academic writing with grammar and style checks.
  • Writesonic vs Jenni: Jenni specializes in long-form content and academic writing, while Writesonic offers diverse templates for various marketing content.
  • Writesonic vs Yomu: Writesonic provides a broad AI writing toolkit; Yomu concentrates on summarizing research papers for quick understanding.
  • Writesonic vs Frase: Writesonic is an AI writing assistant for varied content; Frase focuses on SEO-optimized content creation and research.
  • Writesonic vs CoWriter: Writesonic offers a wide array of content generation features; CoWriter emphasizes collaborative long-form writing assistance.
  • Writesonic vs Elicit: Writesonic generates diverse content formats; Elicit directly answers research questions using academic paper extraction.
  • Writesonic vs SciSpace: Writesonic is a general AI writing tool, while SciSpace helps users understand and analyze scientific papers efficiently.
  • Writesonic vs Scite: Writesonic aids in content creation; Scite evaluates research reliability through citation context.
  • Writesonic vs Quillbot: Writesonic generates various content types; Quillbot focuses on paraphrasing and summarizing existing text.
  • Writesonic vs Grammarly: Writesonic is a content creation platform; Grammarly primarily checks grammar, spelling, and style.
  • Writesonic vs Paperguide: Writesonic assists with diverse writing tasks; Paperguide simplifies complex research concepts and aids literature review.

More of Quillbot

  • Quillbot vs Paperpal: Quillbot offers versatile paraphrasing and summarization, whereas Paperpal is tailored for academic writing enhancement with detailed feedback.
  • Quillbot vs Jenni: Quillbot excels in paraphrasing and grammar checks, while Jenni focuses on AI-powered content generation for varied writing needs.
  • Quillbot vs Yomu: 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.
  • Quillbot vs Frase: Quillbot focuses on rephrasing and improving existing text, whereas Frase aids in SEO-driven content research and creation.
  • Quillbot vs 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 vs Paperguide: Quillbot assists with rephrasing and summarizing text, whereas Paperguide helps navigate and understand scientific literature.

Frequently Asked Questions

Is Writesonic better than Quillbot?

In this software comparison, Writesonic proves to be the better AI tool overall. Writesonic offers a wider range of features and greater flexibility, making it a more powerful choice for various writing tasks. If you compare software prices, you’ll likely find Writesonic offers more value for your money.

Can Writesonic create undetectable AI content?

Yes, Writesonic excels at generating undetectable AI and Writesonic-written content that reads naturally. This is a key advantage when producing content for platforms that may penalize obvious AI-generated text.

How does Writesonic compare to other AI writers like ProWritingAid?

Writesonic offers more comprehensive features than ProWritingAid. While ProWritingAid focuses primarily on grammar and style editing, Writesonic provides a full suite of content creation tools. In a head-to-head, it’s clear that Writesonic is the more versatile and powerful AI writing assistant.

Is Quillbot free?

Quillbot offers a free plan with limited features. However, to unlock its full potential, you’ll need to upgrade to a paid plan. Writesonic based on pricing plans offers a free trial, but you’ll need a paid plan for full access.

How do I choose the best AI writing tool for me?

We encourage you to compare software prices and read user reviews to make the best decision. Consider your specific needs and budget. If you need a versatile AI writing tool with advanced features, Writesonic is an excellent choice. If your primary focus is paraphrasing, Quillbot might be a good fit. This AI vs. Writesonic based on pricing plans and features comparison should help you decide!

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