Welcome to Humanizer Wiki
A free, hyperlinked reference on AI humanizers, the detectors they are measured against, and the research behind AI-text detection. Just information and data, no rankings, no hype.
19 humanizers · 11 detectors · 1 research articles · 31 entries and growing
The core of the wiki: a living table of which humanizers currently beat which detectors, every result dated. When a detector updates after a test, the pairing is flagged for re-testing, so the data stays honest as the cat-and-mouse game moves.
Tools that rewrite AI text to read more naturally and reduce detector scores.
- AISEO AI Humanizer · Free basic humanizer + $1 one-day trial; paid plans up to ~$29/mo (Scale)
- Bypass AI · Free tier (~500 words) + paid from ~$4/mo; lifetime option around $120
- BypassGPT · Small free tier + paid from ~$8/mo (Basic); Unlimited around $30/mo
- Clever AI Humanizer · Free, no signup required; vendor cites large word allowances
- GPTinf · Free preview (up to ~240 words) + paid plans from $9.99/mo
- Grubby AI · Free 300 words/mo + annual plans from ~$6.99/mo (Pro ~$8.99, Unlimited ~$11.99); monthly billing higher
- HIX Bypass · Small free tier (~300 words) + paid plans from ~$14.99/mo
- Humanize AI Pro · Free tier ~500 words one-time; paid annual plans up to ~$195/yr
- Humbot · Free tier (~600 words) + paid from ~$7.99/mo (annual), $11.99/mo monthly
- Netus AI · Free tier + paid plans from $14/mo (Basic) up to $99/mo (Elite)
- NotepadLLM · Free basic editor; Pro ~$8/week or ~$29/month; usage-based API
- Phrasly · Free tier (~550 words) + Unlimited plan from ~$10.99/mo (annual)
- Rephrasy · Paid plans from ~$12.99 (24h pass) and ~$14.99/mo; lifetime deal ~$199
- StealthGPT · Paid flat-rate plans ~$30/mo (Pro) up to ~$500/mo (Enterprise); a low ~$14.99/mo plan is reported but unconfirmed
- StealthWriter · Free tier (10 daily humanizations) + paid from ~$20/mo
- Twixify · Limited free trial + paid plans roughly $8–$27/mo
- Undetectable AI · Free preview + paid plans from ~$5/mo (annual) / ~$9.99/mo (monthly)
- Walter Writes AI · Low-cost tiers from $8/mo (Starter, annual) up to $99/mo (Teams); free trial (no paid trial)
- WriteHuman · Free monthly allowance + plans from ~$12/mo (annual)
Tools that estimate whether text was written by an AI model.
- GPTZero · Free tier + paid plans for educators and teams
- Copyleaks · Limited free checks + paid plans from roughly $11/mo for AI detection
- Content at Scale AI Detector · Free detector (2,500-character limit) + paid BrandWell plans from roughly $49/mo
- Originality.ai · Pay-as-you-go credits + subscriptions (no ongoing free tier; ~50 free trial credits on signup)
- Sapling AI Detector · Free web tool (character-limited) + API/premium from roughly $25/mo
- QuillBot AI Detector · Free AI detector, no account required for checks under the word limit
- Scribbr AI Detector · Free detector (word-limited per check); premium detection via Scribbr's paid services
- Winston AI · Limited free trial + paid plans from roughly $18/mo
- Turnitin AI Detection · No public consumer plan; sold through institutional licenses, and AI detection can be toggled per institution
- Writer.com AI Content Detector · Discontinued as of December 22, 2025; the free tool and legacy detection API are no longer available
- ZeroGPT · Free ad-supported tier + paid plans from roughly $9/mo
Can humanizers actually beat AI detectors?
A plain-language look at how AI humanizers work, why detection is probabilistic, and what the evidence says about whether "undetectable" is a real guarantee or marketing. Includes how we test and what the trade-offs are.
Humanizer Wiki documents a fast-moving, hype-heavy space in neutral terms. We record what each tool does and how it is priced, link everything together, and explain the underlying research. See how we compile entries or read about the project.