W
Rewrite AI-generated text into natural prose and check it with an AI detector
Free, from $12/mo
BypassGPT vs Undetectable AI
Pricing, features, platforms and who each one suits — side by side.
B
Choose BypassGPT if…
- you're in its core audience: students, bloggers
U
Choose Undetectable AI if…
- you work on Chrome
- you're in its core audience: students and educators, content writers and bloggers
Side by side
Feature BypassGPT Undetectable AI
Pricing modelFreemiumFreemium
Starting price—$5/mo
Free plan
Free trial
API
Open source
PlatformsWeb, APIWeb, Chrome, API
CompanyBypassGPTUndetectable Inc.
Full feature lists
B BypassGPT
- Rewrites AI text to pass AI detectors
- Fast, Creative and Enhanced humanization modes
- Built-in AI detection checker
- Paraphrasing in over 50 languages
- Essay generator and essay rewriter
- Article, paragraph and sentence rewriters
- Claims to remove ChatGPT watermarks
- API for integrating the humanizer into apps
U Undetectable AI
- Sentence-level AI text detection
- AI humanizer that rewrites structure, vocabulary and tone
- AI image, audio and video detection
- Fake PDF, receipt and ID detectors
- Paraphrasing tool and AI essay writer
- Human auto typer
- Chrome extension for Google Docs and Gmail
- Support for 50+ languages
What you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
BypassGPT
FreeFree
Undetectable AI
10K words$5.00/mo billed yearly ($60/yr); $9.99/mo monthly
20K words$9.50/mo billed yearly ($114/yr); $19.00/mo monthly
35K words$15.75/mo billed yearly ($189/yr); $31.00/mo monthly
50K words$21.25/mo billed yearly; $42.50/mo monthly
BusinessCustom
Strengths and limitations
BypassGPT
- Free plan with 150 words per month
- Supports over 50 languages
- API available for integration
- 3-day money-back guarantee
- Free plan is limited to 80 words per input
- Free monthly allowance is only 150 words
Undetectable AI
- Annual plans start at $5/mo for 10K words
- Unlimited AI detection on paid plans
- Money-back guarantee if humanized output is flagged
- Chrome extension works in Google Docs and Gmail
- Free trial is limited to 250 words
- Accuracy is highest in English
- Monthly billing costs about twice the annual rate
More comparisons
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Rewrite AI-generated text into natural prose and check it with an AI detector
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AI humanizer that rewrites AI-generated text to pass AI detectors
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Rewrite AI-generated text to read as human, with an AI detector and writer
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H
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POnline AI paraphrasing tool with multiple rewriting modes in 20+ languages
Free, from $3.96/mo
P
Free, from $3.96/mo
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Online AI paraphrasing tool with multiple rewriting modes in 20+ languages
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WW
From $9/mo
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AI rewriter that restructures sentences and rewrites articles in bulk
Paraphrasing & RewritingAPI
Facts from each vendor's public pages, prices checked Nov 8, 2026. Editorial policy