AI Humanizer Leaderboard
In July 2026, the top-ranked AI humanizer on HumanizerBench was WriteHuman, scoring 73.07 out of 100. Since June 2026, WriteHuman took over first place from Stealth Writer. Humanize AI Pro climbed 6 places, the biggest gain. AI Humanize io fell 4 places, the biggest drop.
13 humanizers · 33 prompts each · 5 detectors · Last tested · Methodology v1.2.0
| Rank Position in this cycle by overall score. Learn more → | Humanizer | OverallOverall Weighted blend of bypass rate (42%), meaning preservation (32%), readability (16%), and consistency (10%). Penalties may reduce this score. Learn more → ↓ | BypassBypass Rate Fraction of detector tests where the humanized output was classified as human, across all 5 detectors. Click a score to read the raw outputs and verdicts behind it. Learn more → | Meaning Semantic similarity (embedding cosine) between input and humanized output. Higher = output preserves the input's meaning. Learn more → | Readability Writing quality of the output: clarity, fluency and naturalness, rated by a language model. Higher = better. Learn more → | Penalties Total points deducted from the overall score when output-quality issues were detected. Hover a row's chip to see why. Learn more → | Trend Leaderboard position across recent cycles. The line rises when the tool moves up the ranking, independent of absolute score. Learn more → | Video |
|---|---|---|---|---|---|---|---|---|
| 1
▲ 1 | 73.07 | 81.6 | 72.9 | 56.2 | −1.0Penalties applied
| | ||
| 2
▲ 3 | 72.17 | 95.7 | 73.0 | 55.9 | −10.0Penalties applied
| | ||
| 3
▲ 6 | 70.49 | 70.4 | 74.3 | 60.3 | None | | ||
| 4
▼ 3 | 68.07 | 81.2 | 68.5 | 44.5 | −3.0×2Penalties applied
| | ||
| 5
▼ 1 | 66.42 | 70.7 | 75.3 | 43.9 | −1.0Penalties applied
| | ||
| 6
▼ 3 | 64.84 | 65.9 | 73.8 | 42.9 | None | | ||
| 7
▲ 3 | 62.84 | 80.6 | 64.7 | 61.5 | −8.0×2Penalties applied
| | ||
| 8
▼ 1 | 61.52 | 81.6 | 63.0 | 60.6 | −10.0×3Penalties applied
| | ||
| 9
▼ 1 | 61.47 | 73.4 | 60.9 | 72.1 | −8.0×3Penalties applied
| | ||
| 10
▼ 4 | 59.66 | 76.0 | 69.8 | 55.7 | −10.0×2Penalties applied
| | ||
| 11
-
| 54.13 | 42.3 | 73.2 | 67.1 | −5.0×3Penalties applied
| | ||
| 12
-
| 53.38 | 0.0 | 94.5 | 82.1 | None | | ||
| 13
-
| 44.04 | 0.0 | 69.1 | 74.5 | None | |
Swipe the table sideways to see every column.
Gold, silver and bronze mark the top three scores in each column. Tied scores share a color.
Showing scores in the Overall column ( prompts per humanizer this cycle). A test only earns bypass credit when its output is a real rewrite; that is blended with the category's own meaning and readability. Small categories swing; that's the point. How category scores work
Session recordings
Screen captures of the runs behind the July 2026 board: 13 recordings, one per tool, 2h 31m of testing, 429 runs. Pick a tool to watch it being tested, then jump to any run. Nothing downloads until you press play. Hosted links may expire over time; the published JSON stays the record.
WriteHuman
10:15 · 33 runs
Undetectable.ai
11:36 · 33 runs
Humanize AI Pro
7:28 · 33 runs
Stealth Writer
6:49 · 33 runs
Humbot
15:02 · 33 runs
HIX Bypass
10:51 · 33 runs
Walter Writes
18:21 · 33 runs
StealthGPT
14:40 · 33 runs
Phrasly
13:11 · 33 runs
AI Humanize io
17:06 · 33 runs
Super Humanizer
6:22 · 33 runs
Grammarly
6:46 · 33 runs
NoteGPT
12:13 · 33 runs
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Runs in this recording
Click a time to jump.
Recordings
How scores are computed
Full methodology- Bypass
- Share of detector tests where the output was classified as human.
- Meaning
- How well the output preserves the original meaning.
- Readability
- How clear, fluent, and natural the writing reads, rated by a language model.
- Consistency
- How evenly the humanizer performs across writing categories.
Penalties
Taken off the total for each flagged test. Each rule stops at −10.0, −50.0 in total, and a score cannot go below 0.
- Identical to input −2.0
- The tool returned the input mostly unchanged. No real humanization happened.
- Refusal −1.0
- The tool refused to humanize the input, often due to a content-policy block.
- Meaning drift −1.0
- The output's meaning drifted significantly from the original input.
- Length inflation −1.0
- The output ran much longer than the input, a common trick that pads text to dilute the AI signal.
- Length deflation −1.0
- The output came back much shorter than the input. The rewrite dropped content instead of paraphrasing it.