Last updated 08-12-2026
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AIundetect
AIundetect lets you paste draft text, scan it against multiple AI detectors, and humanize anything that gets flagged, all in one workflow. Writers, students, and marketers use it when they need to see detector scores before publishing rather than guessing whether a rewrite will pass.
Most humanizer tools rewrite first and hope for the best. AIundetect runs GPTZero, Copyleaks, Turnitin, ZeroGPT, Sapling, and other detectors in the same interface before you rewrite, so you see which checker is failing before spending credits. Auto-Perfect mode keeps refining output until it passes, which manual rewriters leave to trial and error.
The rewriter supports 20+ languages and seven style presets including Academic, Blog, Formal, and Simplify. You can upload .txt, .md, .pdf, or .docx files up to 10MB, and new accounts get 500 free rewrite credits plus 10 detector checks to test the workflow.
Runs GPTZero, Copyleaks, Turnitin, ZeroGPT, and Sapling checks in one pass before rewriting
Auto-Perfect mode rewrites until content passes detection (paid plans)
20+ languages with presets for Academic, Blog, Formal, Informal, Expand, and Simplify
Upload .txt, .md, .pdf, or .docx files up to 10MB for batch rewriting
Standard plan includes 50,000 humanized words per month with 1,500 words per request
Separate API with rewrite endpoint supporting 100 to 10,000 character inputs
Shows results from multiple AI detectors before you spend rewrite credits.
20+ languages and seven rewrite style presets cover academic, blog, and formal use cases.
File uploads support .txt, .md, .pdf, and .docx up to 10MB.
Free tier includes 500 rewrite credits and 10 detector checks after signup.
Auto-Perfect mode and higher word limits require a paid subscription.
API plans are separate from web rewriter subscriptions and do not share credits.
Basic plan caps AI detector use at 30 checks per day.
Is AIundetect free to use?
AIundetect offers a free tier with 500 rewrite credits and 10 AI detector uses after registration. Paid plans start at $5 per month on yearly billing for 10,000 words, with monthly billing from $15 per month.
Which AI detectors does AIundetect check?
AIundetect checks content against GPTZero, Copyleaks, Turnitin, ZeroGPT, Sapling, Winston AI, Writer, and Originality AI. Results appear in the same interface before you run the humanizer.
What languages does AIundetect support?
AIundetect supports humanized rewriting in more than 20 languages, including English, Spanish, Portuguese, French, German, Japanese, Korean, Arabic, and Hindi. The rewriter detects the input language automatically.
What is Auto-Perfect mode on AIundetect?
Auto-Perfect mode on AIundetect automatically refines rewritten text until it passes AI detection checks. It is available on paid subscriptions and uses the Undetect V3 model tuned for GPTZero, Copyleaks, and Turnitin.
Does AIundetect have an API?
Yes, AIundetect offers a separate rewrite API at aiundetect.com/api/v1/rewrite with plans from $15 per month for 30,000 words. API subscriptions are not shared with the web rewriter plans.
What file types can I upload to AIundetect?
AIundetect accepts .txt, .md, .pdf, and .docx uploads with a 10MB size limit. You can also paste text directly into the editor for detection and rewriting.