DueTomorrow vs QuillBot

QuillBot is a popular paraphrasing and grammar tool that some users attempt to use as an AI humanizer. Here's how it stacks up against DueTomorrow for making AI text undetectable.

Last updated: March 2026

[ side-by-side ]

FeatureDueTomorrowQuillBot
Pricing$0 free / $9.99 Starter / $24.99 Pro~$9.95/mo
Hallucination riskZero hallucinationPossible meaning changes
Structure preservationFully preservedPartial
Output lengthSame length as inputOften shorter
Detection bypassPasses all major detectorsVaries by detector
Best forStudents & academicsGeneral paraphrasing and grammar improvement
API accessYes (Pro plan)No

[ why duetomorrow ]

Why choose DueTomorrow over QuillBot

  • Purpose-built for AI detection bypass — not a repurposed paraphraser
  • Zero hallucination guarantee preserves your original arguments and facts
  • Consistently passes Turnitin, GPTZero, and other advanced detectors
  • Output maintains the same length and structure as your input

[ fair comparison ]

When QuillBot might be the better choice

  • Excellent general-purpose paraphrasing with multiple modes
  • Integrated grammar checker and summarizer
  • Browser extension for use across the web
  • Affordable pricing with a generous free tier

[ faq ]

Is DueTomorrow better than QuillBot?+

DueTomorrow and QuillBot take different approaches to AI humanizing. DueTomorrow focuses on zero hallucination and preserving your original structure and length, which makes it especially strong for academic work. QuillBot has its own strengths — the best choice depends on your specific needs and budget.

Can QuillBot bypass Turnitin?+

QuillBot can bypass some AI detectors, but results vary depending on the content type and detection model version. DueTomorrow is specifically engineered to pass all major detectors including the latest versions of Turnitin, GPTZero, Originality.ai, and others.

Does DueTomorrow change the meaning of my text like QuillBot?+

No. DueTomorrow has a zero-hallucination guarantee — it never introduces facts, claims, or ideas that weren't in your original text. The output preserves your arguments, citations, and structure exactly while making the text undetectable as AI-generated.

Try DueTomorrow free

Paste your AI text in, get human text out. No credit card required to start.

[ more comparisons ]