Leaderboard / Compare

Compare AI humanizers

Select two to four AI humanizers to see their bypass rate, meaning preservation and readability in one table, or open any pair from the grid below. All figures on this page come from the October 2026 run. Every tool got the same prompts and was judged by the same detectors and scoring code. All of the data is public.

Pick 2 to 4 tools 3 of 4 selected

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✓UndetectedGPT#1 · 88.12✓HIX Bypass#2 · 83.87✓GPTinf#3 · 80.74SmartHumanizer#4 · 80.20AI Humanize#5 · 78.33SuperHumanizer#6 · 78.23WriteHuman#7 · 75.06CleverHumanizer#8 · 68.06StealthGPT#9 · 64.52ReHumanize#10 · 41.60Undetectable AI#11 · 33.60

	UndetectedGPT#1 · 88.12×	HIX Bypass#2 · 83.87×	GPTinf#3 · 80.74×
Overall
Leaderboard rank	#1	#2	#3
Overall score	88.12	83.87	80.74
Score componentsOverall score weights: 42% bypass, 32% meaning, 16% readability, 10% consistency. Penalty points are then subtracted.
Bypass rate95% confidence interval shown below each value	96.093.4–98.6	93.588.6–98.3	88.782.2–95.1
Meaning preservation	77.4	77.9	68.3
Readability	83.6	64.3	77.7
Consistency across categories	96.6	93.9	92.1
Penalties	None	None	None
Detector bypass ratesAverage human-likelihood (0–100) each detector gave this tool's outputs.
GPTZero	72.0	4.0	55.1
Winston AI	84.4	86.6	89.1
Originality.ai	96.7	89.1	92.2
ZeroGPT	92.3	94.7	84.5
Grammarly	96.8	88.9	88.4
QuillBot	91.0	93.4	86.4
Copyleaks	78.8	81.8	57.6
Writing categoriesBypass, meaning preservation and readability on that category's prompts, weighted as in the overall score, plus the tool's overall consistency score. Penalties are not subtracted.
Academic essay6 prompts	90.5	86.4	81.9
Application essay6 prompts	88.1	80.2	79.7
Blog post6 prompts	87.9	83.0	77.6
Business email3 prompts	84.3	79.8	79.2
Marketing copy6 prompts	84.0	84.1	81.1
Discussion board3 prompts	91.7	89.0	84.0
News article3 prompts	92.4	86.4	84.1
AccessWhether the tool has a free tier. Every tool is tested on its default settings.
Free tier	Yes	Yes	Yes

Every matchup

Each cell shows how many points the row tool scores above (green) or below (red) the column tool in the October 2026 cycle. Select a cell to open the full comparison of the two. In the W–L column, W is the number of other tools that tool outscores and L is the rest.

55 pairs · 11 tools

Row minus column	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	#11	W–L
#1UndetectedGPT88.12		+4.3	+7.4	+7.9	+9.8	+9.9	+13.1	+20.1	+23.6	+46.5	+54.5	10–0
#2HIX Bypass83.87	−4.3		+3.1	+3.7	+5.5	+5.6	+8.8	+15.8	+19.4	+42.3	+50.3	9–1
#3GPTinf80.74	−7.4	−3.1		+0.5	+2.4	+2.5	+5.7	+12.7	+16.2	+39.1	+47.1	8–2
#4SmartHumanizer80.20	−7.9	−3.7	−0.5		+1.9	+2.0	+5.1	+12.1	+15.7	+38.6	+46.6	7–3
#5AI Humanize78.33	−9.8	−5.5	−2.4	−1.9		+0.1	+3.3	+10.3	+13.8	+36.7	+44.7	6–4
#6SuperHumanizer78.23	−9.9	−5.6	−2.5	−2.0	−0.1		+3.2	+10.2	+13.7	+36.6	+44.6	5–5
#7WriteHuman75.06	−13.1	−8.8	−5.7	−5.1	−3.3	−3.2		+7.0	+10.5	+33.5	+41.5	4–6
#8CleverHumanizer68.06	−20.1	−15.8	−12.7	−12.1	−10.3	−10.2	−7.0		+3.5	+26.5	+34.5	3–7
#9StealthGPT64.52	−23.6	−19.4	−16.2	−15.7	−13.8	−13.7	−10.5	−3.5		+22.9	+30.9	2–8
#10ReHumanize41.60	−46.5	−42.3	−39.1	−38.6	−36.7	−36.6	−33.5	−26.5	−22.9		+8.0	1–9
#11Undetectable AI33.60	−54.5	−50.3	−47.1	−46.6	−44.7	−44.6	−41.5	−34.5	−30.9	−8.0		0–10

The ranking is rebuilt each cycle from the published input texts, rewrites and detector results. The latest run was on October 1, 2026. How scoring works