StealthGPT vs Pangram: Does StealthGPT Bypass Pangram?

Yes. StealthGPT passed Pangram on 88% of texts (44 of 50) in HumanizerEval's October 2026 review, the highest rate of the 11 humanizers tested; the next best tool passed 40%. Pangram is notable among AI detectors for explicitly targeting AI that has been processed by AI humanizer tools, which makes it one of the strictest detectors in HumanizerEval's panel.

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The detector

What is Pangram?

Pangram, built by Pangram Labs, is an AI writing detection tool designed primarily for educational settings. Its classifier is trained on millions of AI generated documents. It is built to identify AI writing based on its distinct signaled patterns including text that has been humanized after its initial generation. Pangram can integrate directly into Google Classroom to provide educators with AI transparency reports on student submissions.

What is Pangram?

Benchmark

How StealthGPT Performs Against Pangram

StealthGPT ranked #1 of 11 humanizers in HumanizerEval's October 2026 review, and #1 on Pangram, at 88% against 40% for the next best tool.

tested
Oct 2026
texts per tool
50
AI detectors
6
humanizers
11

Methodology:

HumanizerEval ran 11 AI humanizers, including StealthGPT Super, on the same 50 English texts, 364 to 997 words each. Every output was scored through Pangram's API using its v4 model, which is built to flag text that has been humanized. An output counts as a pass only when Pangram's overall verdict is human, meaning a human score above 50%; mixed and uncertain verdicts count as fails. The review ran on October 22, 2026, and every per-text score is published in a public CSV.

Results:

StealthGPT passed Pangram on 44 of 50 texts (88%), with a mean human score of 89.0%. The remaining 6 texts were flagged or marked unclear. The next best humanizer passed 40%, and the average tool in the panel passed 18%.

Pangram pass rate, all 11 humanizers, October 2026

Humanizer
StealthGPT Super
88%
Undetectable.ai
40%
WriteHuman
26%
Rephrasy
26%
Grubby
10%
Phrasly
4%
RewriteAI
2%
HIX Bypass
0%
Humbot
0%
BypassGPT
0%
Ryne
0%

StealthGPT also passed all 6 detectors on 17 of 50 texts, more than any other tool.

Scoring methodologySee the full Pangram rankings on HumanizerEval

Choosing an AI humanizer for Pangram

Compare humanizers on the same Pangram benchmark

If you are choosing an AI humanizer that bypasses Pangram, start with the detector-specific results rather than an overall score across several detectors. The table above puts all 11 humanizers on the same 50-text test. Open the published Pangram results to compare each tool, then use the full HumanizerEval rankings to explore its performance across the other detectors. This keeps the Pangram comparison in focus while giving you a clear path to the wider results.

HumanizerEval: Pangram results and humanizer comparison

Read Pangram’s document result and passage-level labels together

Pangram 4 distinguishes fully AI-generated writing, mixed human-and-AI authorship and AI-assisted writing. Its technical overview describes passage-level analysis for documents with separate human and AI sections, alongside an AI-assisted category for text edited through a combination of human and AI input. When reviewing an article or essay, keep the complete document and its highlighted passages together. This makes it easier to connect the overall result with the specific sections you are working on.

Pangram: mixed authorship and AI-assisted writing

How to bypass Pangram with StealthGPT

  1. Start with the draft you want to humanize. Keep your original in a separate document so you can compare the argument, examples and citations with the rewritten version.
  2. Open the StealthGPT AI humanizer and choose Super, the model used in the benchmark on this page. Paste your draft and run humanization to create the rewritten version.
  3. Read the rewritten text alongside your original. Finish your editorial pass for your audience, keeping names, quoted passages, figures and references aligned with your source material.
  4. Run the finished version through Pangram and save the matching report. Review the document result and passage-level feedback together, then keep that report with the exact version you checked.

What is the difference between mixed and AI-assisted text in Pangram?

Mixed authorship covers documents with distinct human-written and AI-generated sections. AI-assisted text describes writing where human and AI editing are intertwined within a passage. Pangram 4 analyzes these separately, so the label and the highlighted passage together provide more context than a document-level result alone.

Pangram: mixed authorship and AI-assisted writing

Where can I compare Pangram results with other AI detectors?

Use the Pangram table on this page for the detector-specific comparison, then open the full HumanizerEval rankings for GPTZero, Originality.ai, ZeroGPT and Winston AI results from the same review. StealthGPT’s detector comparison pages also explain the individual reports and link directly to the published benchmark for each tested detector.

HumanizerEval: full AI humanizer rankings

See our other AI detector bypass rates

Frequently Asked Questions

Still have more questions?
Learn more in our support page.

Yes. In HumanizerEval's October 2026 review, StealthGPT passed Pangram v4 on 44 of 50 texts (88%), with a mean human score of 89.0%, registering as human written on Pangram's AI humanizer check. That was the highest Pangram rate of the 11 humanizers tested; the next best passed 40%.

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