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Side-by-side comparison · Writing & Translation

GPTZero vs Hemingway Editor vs QuillBot

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

GPTZero

4.2

From $0

Best overall

Hemingway Editor

4.3

From $0

QuillBot

4.1

From $19.95/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Teachers, editors and business owners who want a second opinion on whether writing they've been handed came from AI.

Best overall

Pick it if: Business owners, marketers and bloggers who want their website copy, emails and posts easier to read.

Pick it if: Students, non-native English writers and anyone who wants a paragraph cleaned up or reworded in one click.

Overview

AttributeGPTZeroHemingway EditorQuillBot
In one lineChecks whether text was written by AI, with plagiarism and citation checks too.Highlights hard-to-read sentences so your writing is clear, and rewrites them with AI.Rewords, fixes grammar and summarises text, with an AI checker and humaniser built in.
Pricing modelFreemiumFreemiumFreemium
Starting price$0$0$19.95/mo
Free plan Yes Yes Yes
Works with Claude Code Yes No No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeGPTZeroHemingway EditorQuillBot
Overall rating4.24.3Winner4.1
Ease of useHow quickly someone non-technical gets value from it.
4.5
5.0
5.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.0
4.0
Output qualityHow good the results are before you fix them.
3.5
4.0
3.5
Value for moneyWhat you get for the price, including the free plan.
4.0
4.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.5
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeGPTZeroHemingway EditorQuillBot
Access & platform
Free plan Yes Yes Yes
Mobile app No No Yes
Desktop app–– Yes
Browser extension Yes No Yes
API access Yes No No
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes–
Connects to other apps Yes No Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes– Yes
Understands images–– No
Makes images No No–
Makes video No No No
Writes code No No No
Runs agents or automations No No No
Learns your brand or style– Yes Yes
Works in many languages Yes– Yes
Capabilities score8/ 174/ 179/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeGPTZeroHemingway EditorQuillBot
Plans

Free

$0

Checking the odd document.

Free

$0

Checking how readable your writing is.

Free

Free

Odd sentences and quick grammar checks.

PremiumOur pick

$23.99/mo, or $12.99/mo billed yearly

Teachers and editors checking work every week.

Individual 5K

$100/yr ($8.33/mo)

Occasional AI help.

PremiumOur pick

$19.95/mo, or $99.95/yr ($8.33/mo)

Anyone rewording or checking text most weeks.

Professional

$45.99/mo, or $24.99/mo billed yearly

Agencies and heavy users scanning lots of files.

Individual 10KOur pick

$150/yr ($12.50/mo)

Writers editing most days.

Team

Per seat, billed yearly

Schools and companies buying for a group.

Team

Professional price per seat, 2 seats minimum

Schools and businesses buying for a group.

Team 10K

$150/user/yr ($12.50/user/mo)

Teams of up to 50.

Enterprise

Custom

Large organisations.

Which plan to pickStart on Free. If you check more than a few documents a week, Premium on yearly billing is the sweet spot. Professional only makes sense if you scan big batches of files.Use the free editor first. If you want the fixes done for you, try Editor Plus free for two weeks. Individual 10K is the best value if you write most days. Monthly billing is available but costs more than yearly.Stay on Free if you only reword the odd sentence. If you use it every week, the yearly Premium plan is far cheaper than paying monthly, but set a reminder before it renews because refunds after renewal are hard to get.

Key features

AttributeGPTZeroHemingway EditorQuillBot
Standout features
  • AI detection
  • Plagiarism check
  • Writing replay
  • Citation and hallucination check
  • Batch scans
  • API and school integrations
  • Readability highlights
  • Reading grade level
  • AI sentence rewrites
  • Tone, length and style
  • Style guide
  • Paraphraser
  • Grammar checker
  • Summariser
  • AI detector and humaniser
  • Plagiarism checker and citations
  • Works where you write

Pros and cons

AttributeGPTZeroHemingway EditorQuillBot
Pros
  • Clear sentence-level highlights, so you see exactly what looks AI-written
  • Generous free plan for occasional checks
  • Writing replay gives honest writers a way to prove their work
  • Flags made-up citations, which most detectors don't
  • API and batch scans for larger volumes
  • Shows readability problems at a glance
  • Free web editor with no sign-up
  • Teaches you to write more clearly over time
  • AI rewrites are one click on Editor Plus
  • Cheap next to most writing tools
  • No learning curve: paste, pick a mode, click
  • Yearly Premium is cheap next to Grammarly or a chat assistant
  • Many rewrite styles, including ones you define yourself
  • Grammar, summaries, citations and plagiarism checks in one subscription
  • Works inside Chrome and Word so you stay in your document
Cons
  • False positives happen, and short or formal writing gets flagged more often
  • Edited or reworded AI text can get past it
  • The best scan and plagiarism checks need a paid plan
  • Mostly designed around schools, so some features won't matter to a business
  • Free version highlights but doesn't fix anything
  • Can push all writing towards the same short, flat style
  • AI plans are mainly sold yearly
  • Editor Plus caps AI rewrites each month
  • Free plan caps paraphrasing at 125 words per go and hides most modes
  • Reworded text can change your meaning or read awkwardly, so every rewrite needs checking
  • AI detector and humaniser are inconsistent, and the humaniser often still gets flagged by school checkers
  • Complaints about surprise annual renewals, refused refunds and constant upgrade pop-ups on the free plan
  • Owned by Learneo (Course Hero), and some users object to its data and privacy terms

Who each one is for

AttributeGPTZeroHemingway EditorQuillBot
Best for
  • Checking essays and assignments for AI writing
  • Screening freelance or agency content
  • Spotting made-up citations in reports
  • Showing you wrote a document yourself
  • Making website and blog copy easier to read
  • Checking a reading grade level
  • Cutting long, wordy sentences
  • Writing for a general audience
  • Rewording a sentence or paragraph
  • Grammar and spelling fixes
  • Summarising articles and readings
  • Writing in a second language
  • Making formal writing simpler
You'll find it used by
  • Teachers
  • Editors
  • Content agencies
  • Recruiters
  • Students
  • Bloggers
  • Marketers
  • Small business owners
  • Copywriters
  • Students
  • Students
  • Non-native English writers
  • Academics
  • Freelance writers
  • Office staff

Questions people ask

Which is better, GPTZero, Hemingway Editor or QuillBot?

Hemingway Editor scores highest overall in our ratings (GPTZero 4.2/5, Hemingway Editor 4.3/5 and QuillBot 4.1/5). GPTZero is best for checking essays and assignments for AI writing and screening freelance or agency content. Hemingway Editor is best for making website and blog copy easier to read and checking a reading grade level. QuillBot is best for rewording a sentence or paragraph and grammar and spelling fixes.

Which is cheaper, GPTZero, Hemingway Editor or QuillBot?

GPTZero: There's a free plan, and paid plans start at $0. Hemingway Editor: There's a free plan, and paid plans start at $0. QuillBot: There's a free plan, and paid plans start at $19.95/mo.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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