Quillbot vs Frase AI: Which AI writing tool should you choose?

Picking the right AI writing assistant can be challenging given the many options available. The market is flooded with tools promising to make your life easier, but they all seem to do different things. Two names that keep popping up are Quillbot, a popular tool for polishing up your writing, and Frase AI, a platform built specifically for creating content that ranks on search engines.

So, how do you choose between them?

That's what we're here to sort out. We'll break down what each tool does, compare their features, look at the price tags, and figure out who they're really for. By the end, you should have a clear idea of which one fits your workflow.

And if you find that neither one fully addresses the need to scale blog content, a different category of tool may be required. For those looking to generate publish-ready SEO articles from the ground up, an end-to-end solution like the eesel AI blog writer offers another approach.

What is Quillbot?

Quillbot isn't an AI that writes for you; it’s more of an AI that writes with you. Its main job is to take text you've already written and make it better. Think of it as a souped-up thesaurus and grammar checker combined.

Its toolkit is all about refining and improving your writing. The main features include:

• A Paraphrasing Tool that rephrases sentences to improve clarity or switch up the tone.
• A Grammar Checker to catch any pesky mistakes.
• A Plagiarism Checker to ensure your work is original.
• A Summarizer that boils down long documents to the key points.
• An AI Humanizer to make AI-generated text sound more natural.
• A Citation Generator for creating properly formatted citations.

  

Quillbot is a favorite among students, academics, and professionals who need to polish reports, essays, emails, and articles. It’s all about making sure the final piece is clear, correct, and original.

I'd love to see more focus on how well each AI tool handles citation + referencing, especially for academic use. Tons of them just hallucinate sources or format citations wrong, and nobody seems to cover which ones actually get it right.

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What is Frase AI?

Frase AI operates on a different principle. It's a full-on content creation platform designed for people who are serious about SEO. Its goal is to help you create long-form content that not only ranks on Google but also shows up in AI search platforms like ChatGPT and Perplexity.

The entire workflow is built around search performance. You start by analyzing the top-ranking pages for your target keyword (what's known as SERP analysis). From there, Frase helps you generate an AI content outline based on what's already performing well. As you write, it gives you real-time SEO and GEO (Generative Engine Optimization) scores to keep you on track.

Its key features are focused on outranking the competition:

• SERP analysis to see what your competitors are doing right.
• AI-generated content outlines to structure your articles for success.
• Real-time content optimization with topic suggestions and scoring.
• AI Search Visibility tracking to see if your content is being used as a source by platforms like ChatGPT and Perplexity.

Frase is made for content marketers and SEO professionals whose main job is to create blog posts that bring in organic traffic.

For long‑form: generate 2k and 4k drafts. Log time‑to‑first‑token, tokens/sec, total time, retries, crashes, and editor lag. Score section coherence and whether the tool preserves context after iterative edits (outline → expand → revise).

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Feature comparison: Quillbot vs. Frase AI

While both Quillbot and Frase AI are considered "AI writing" tools, they’re built for completely different tasks. Quillbot is like a finishing tool for sanding and polishing, while Frase AI is the power tool you use to build the whole thing from scratch.

Core functionality: Polishing vs. creating

• Quillbot: The whole platform is geared toward refining text that already exists. It's fantastic at helping you find new ways to say something, adjust the tone of a sentence, or fix a grammar mistake you missed. It helps you improve what’s already on the page.
• Frase AI: This tool is about the entire content lifecycle, from the initial idea to the final, optimized draft. It uses SERP data to guide you on what to write about and how to structure it, giving you the best shot at outranking your competitors.
• Summary: Quillbot is used for post-draft polishing, while Frase is for pre-draft research and writing the first version.

  

Content research and SEO tools

• Quillbot: This just isn't what it does. Quillbot has no features for SEO or SERP research. Its Plagiarism Checker is the closest thing to a "research" tool, but it’s for checking originality, not for building a content strategy that will actually rank.
• Frase AI: This is where it shines. Frase is built on a foundation of SEO research. It analyzes top search results, pulls out common questions people are asking, identifies topics your competitors have covered, and helps you find content gaps. It’s one of the few tools that optimizes for both traditional SEO and Generative Engine Optimization, which is important for getting your content cited by AI answer engines. It even has an AI Search Tracking feature to monitor your brand's visibility on ChatGPT, Claude, Gemini, and Perplexity.

Content generation capabilities

• Quillbot: A key distinction here is that Quillbot does not have a long-form content generator. You can’t just give it a keyword and get a full blog post. It has an "AI Chat" feature for brainstorming, but it won't write an article for you. If your goal is to scale content production, this is a major drawback.
• Frase AI: Frase offers an AI writer that can generate both outlines and full drafts based on its SERP analysis. The content it creates is specifically designed to be competitive and cover the topics needed to rank for your target keyword.

Ease of use

• Quillbot: It’s incredibly simple to use. The interface is clean and straightforward: you paste your text, pick a mode, and see the suggestions. There's practically no learning curve.
• Frase AI: As a more powerful tool, it's also more complex. If you're new to SEO, it might take a bit to get used to SERP analysis, content scoring, and GEO concepts. It's built for professionals who are comfortable with data-driven content creation.

Pricing comparison: Quillbot vs. Frase AI

The pricing for these tools reflects their different users and features. Quillbot is an affordable tool for individuals, while Frase is a bigger investment for professional content teams.

Quillbot pricing

• Free Plan: Quillbot has a pretty generous free plan, but it has some important limits. The biggest one is the 125-word limit on the paraphraser, which makes it hard to use for anything longer than a couple of paragraphs. You also only get two writing modes (Standard and Fluency).
• Premium Plan: This unlocks everything. You get unlimited words in the paraphraser, more advanced modes, and access to the Plagiarism Checker (which scans up to 25,000 words per month). The Premium plan costs $8.33 per month if you pay for a full year ($99.95) or $19.95 if you pay month-to-month.

Frase AI pricing

• Trial: Frase AI offers a 7-day free trial that doesn't require a credit card, so you can test it out completely before you buy.
• Paid Plans: When billed annually, the plans are:
  • Starter Plan: This starts at $39/month for one user and lets you create up to 10 AI-optimized articles per month.
  • Professional Plan: This starts at $103/month for three users and increases the limit to 40 articles per month.
  • Scale & Enterprise Plans: Custom plans are available for larger teams and agencies with bigger content needs.

Value proposition and summary

Quillbot offers great value for anyone who needs a top-notch writing assistant for a low monthly fee. Frase is a professional-grade SEO tool, and its price reflects the value it provides for businesses trying to drive organic traffic.

Who should use Quillbot vs. Frase AI?

So, which one is right for you? It really depends on what you're trying to do.

• Choose Quillbot if: You're a student, academic, or any writer who spends most of your time working with existing documents. If your main goal is to improve clarity, fix grammar, check for plagiarism, and make sure your writing sounds good, Quillbot is an excellent and affordable choice.
• Choose Frase AI if: You're a content marketer, blogger, or SEO specialist whose job is to create content that drives organic traffic. If you need a data-driven approach to outrank competitors and get your content noticed by both Google and AI search engines, Frase is built for you.

This comparison highlights a potential gap in the workflow. Quillbot helps polish a draft, and Frase helps create an SEO-focused one, but users often need to handle additional tasks like adding images, quotes, and FAQs to create a publish-ready post.

An alternative for end-to-end content creation

For those looking to scale content production while maintaining quality, a tool that bridges the gap between drafting and publishing may be suitable. That’s where the eesel AI blog writer comes in.

It is designed to turn a single keyword into a complete, media-rich, and SEO-optimized blog post that’s ready to publish. It functions as an end-to-end content creation engine, rather than just a drafter or editor.

Key features include:

• Complete Content, Not Just a Draft: It doesn't just spit out a wall of text. It generates a fully structured article with an intro, conclusion, proper headings, and even an FAQ section.
• Automatic Assets: It automatically creates and inserts relevant visuals like AI-generated images, infographics, and tables directly into the post, saving you hours of work.
• Authentic Social Proof: To make your content more credible, it finds and embeds relevant YouTube videos and real quotes from Reddit discussions.
• AEO Optimization: It goes a step beyond Frase’s GEO. It’s specifically optimized for AI Answer Engines (AEO), helping your content get featured in places like Google AI Overviews and Perplexity.

This is the exact tool we used to grow our own organic traffic from 700 to 750,000 daily impressions in just three months. The tool is free to try, allowing users to assess the content quality without commitment.

To see how these tools stack up against other popular AI writers in the market, check out this detailed video review. It provides a hands-on look at the capabilities of different platforms, offering a broader perspective on where Quillbot and Frase AI fit into the ecosystem.

A video comparing top AI content writing tools, relevant to the Quillbot vs Frase AI discussion.

Final thoughts

At the end of the day, the choice between Quillbot and Frase AI is pretty clear. Quillbot is a fantastic text refiner for polishing your work, while Frase is a powerful SEO toolkit for creating competitive drafts from scratch. The most suitable tool is the one that aligns with your specific tasks.

However, if your primary role involves producing high-quality, rank-ready blog content efficiently, an all-in-one solution may be a better fit. This approach avoids using multiple tools for research, writing, and editing. You can try the eesel AI blog writer for free to generate complete, SEO-optimized blog posts.