Side-by-side comparison · Writing & Translation

Hemingway Editor vs Undetectable AI

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

Best overall

Hemingway Editor

4.3

From $0

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Undetectable AI

3.6

From $0

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Comparing 2 tools. Add one more if you like.

At a glance

Hemingway Editor4.3

Best overallBest valueEasiest to use

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

Undetectable AI3.6

Pick it if: Marketers and writers who use AI for first drafts and want them to sound less robotic.

Overview

Attribute	Hemingway Editor	Undetectable AI
In one line	Highlights hard-to-read sentences so your writing is clear, and rewrites them with AI.	Rewrites AI-written text so it reads more human and is less likely to get flagged.
Pricing model	Freemium	Freemium
Starting price	$0	$0
Free plan	Yes	Yes
Works with Claude Code	No	Yes

Rating breakdown

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

Attribute	Hemingway Editor	Undetectable AI
Overall rating	4.3Winner	3.6
Ease of useHow quickly someone non-technical gets value from it.	5.0	4.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.	4.0	3.5
Output qualityHow good the results are before you fix them.	4.0	3.0
Value for moneyWhat you get for the price, including the free plan.	4.0	3.5
Speed & reliabilityHow fast it is and how often it falls over.	4.5	4.0

Feature comparison

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

Attribute	Hemingway Editor	Undetectable AI
Access & platform
Free plan	Yes	Yes
Mobile app	No	No
Desktop app	–	–
Browser extension	No	Yes
API access	No	Yes
Teams & business
Team workspace	Yes	No
Enterprise plan or SSO	Yes	–
Connects to other apps	No	No
Open source or self-hosted	No	No
AI abilities
Works with your files	–	Yes
Understands images	–	Yes
Makes images	No	No
Makes video	No	No
Writes code	No	No
Runs agents or automations	No	No
Learns your brand or style	Yes	–
Works in many languages	–	Yes
Capabilities score	4/ 17	6/ 17

Pricing

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

Attribute	Hemingway Editor	Undetectable AI
Plans	Free $0 Checking how readable your writing is.	Free $0 Testing one short piece.
	Individual 5K $100/yr ($8.33/mo) Occasional AI help.	10K words $9.99/mo, or $5/mo billed yearly ($60) Occasional use.
	Individual 10KOur pick $150/yr ($12.50/mo) Writers editing most days.	20K wordsOur pick $19/mo, or $9.50/mo billed yearly ($114) Regular blog content.
	Team 10K $150/user/yr ($12.50/user/mo) Teams of up to 50.	Larger plans From $31/mo, or $15.75/mo billed yearly Agencies and high volume.
	Enterprise Custom Large organisations.
Which plan to pick	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.	Test the free 250 words on your own writing first. If the output works for you, a small yearly plan is cheap. Word credits reset monthly, so don't buy more than you use.

Key features

Attribute	Hemingway Editor	Undetectable AI
Standout features	Readability highlights Reading grade level AI sentence rewrites Tone, length and style Style guide	AI humaniser AI detector Human typer Image and video detectors API

Pros and cons

Attribute	Hemingway Editor	Undetectable AI
Pros	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	Simple: paste, pick a level, rewrite Built-in detector shows how text might score Cheap on yearly plans API for bulk rewriting Refund on humanised text that gets flagged
Cons	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	No guarantee text will pass detectors Rewrites can read awkwardly or change your meaning Using it to hide AI use can break school or client rules Free trial is only 250 words Its marketing promises more than any humaniser can deliver

Who each one is for

Attribute	Hemingway Editor	Undetectable AI
Best for	Making website and blog copy easier to read Checking a reading grade level Cutting long, wordy sentences Writing for a general audience	Making AI drafts sound less robotic Seeing how detectors might score your text Rewriting at a set reading level Bulk rewriting through the API
You'll find it used by	Bloggers Marketers Small business owners Copywriters Students	Content marketers Bloggers Freelance writers SEO agencies Students

Questions people ask

Which is better, Hemingway Editor or Undetectable AI?

Hemingway Editor scores highest overall in our ratings (Hemingway Editor 4.3/5 and Undetectable AI 3.6/5). Hemingway Editor is best for making website and blog copy easier to read and checking a reading grade level. Undetectable AI is best for Making AI drafts sound less robotic and seeing how detectors might score your text.

Which is cheaper, Hemingway Editor or Undetectable AI?

Hemingway Editor: There's a free plan, and paid plans start at $0. Undetectable AI: There's a free plan, and paid plans start at $0.

Which is easier to use, Hemingway Editor or Undetectable AI?

Hemingway Editor rates highest for ease of use in our scores. Business owners, marketers and bloggers who want their website copy, emails and posts easier to read.

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

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