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Head-to-head comparison

StealthGPT vs Phrasly AI

Compare the site’s stored figures for these two tools, then read their individual reviews. The raw samples and run records are not published here, so these numbers cannot currently be independently reproduced.

Stored test date: Jun 2, 2026 Listed sample size: 30 Methodology 5 detectors
Higher AIHT Rating
StealthGPT
stealthgpt.ai
71.47
AIHT Rating / 100
82.9%Bypass
67.7Meaning
100Readability
Comparison tool
Phrasly AI
phrasly.ai
71.1
AIHT Rating / 100
76.9%Bypass
71.4Meaning
100Readability
Two manuscripts with different editorial annotations, shown side by side.

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Side-by-side scores

The stored scorecard lists a 30-prompt sample and five detector summaries. Raw outputs and run records are not available here to verify those conditions. Read these values as published site figures, not independently reproduced measurements.

Overall
71.47
StealthGPT
71.1
Phrasly AI
Bypass Rate
82.9%
StealthGPT
76.9%
Phrasly AI
Meaning
67.7
StealthGPT
71.4
Phrasly AI
Readability
100
StealthGPT
100
Phrasly AI
Penalties
-9
StealthGPT
-6
Phrasly AI

Scroll horizontally to see all score columns.

AIHT Rating comparison: StealthGPT and Phrasly AI
MetricStealthGPTPhrasly AIHigher published value
AIHT Rating71.4771.1StealthGPT
Bypass Rate82.9%76.9%StealthGPT
Meaning Preservation67.771.4Phrasly AI
Readability100100Tie
Penalties-9 (meaning drift, length inflation, length deflation)-6 (meaning drift, length inflation)Phrasly AI

Detector-by-detector results

Different detectors measure text differently. This table shows the stored figures for five detectors and highlights the higher listed value. A higher number is not a guarantee for another passage or detector version.

GPTZero

StealthGPT83.6
Phrasly AI78.2

Proofademic

StealthGPT72.3
Phrasly AI80.1

ZeroGPT

StealthGPT65.7
Phrasly AI73.4

Copyleaks

StealthGPT83.3
Phrasly AI72.8

Originality.ai

StealthGPT78.8
Phrasly AI68.1

StealthGPT wins on 3 of 5 detectors. Phrasly AI wins on 2.

Our verdict

Use these scores to frame your next test. They describe this site’s stored dataset. They do not establish which tool will produce the best rewrite for your draft.

Compare the same passage in both tools. Check factual meaning, natural phrasing and the amount of editing still needed. Confirm the current plan allowance before subscribing.

Read the evidence limitations and evaluation checklist →

Pricing comparison

These are the prices stored with this scorecard, not a live pricing feed. Confirm the current price, billing period and included allowance before subscribing.

StealthGPT
$25.50 /mo
No free tier
Phrasly AI
$14.99 /mo
Free tier available

Phrasly AI is 41% cheaper at $14.99/mo vs $25.50/mo. Phrasly AI offers a free tier; StealthGPT does not.

Who should pick which

Use these as shortlist criteria to check in your own trial. The stored figures alone do not establish real-world suitability.

Pick StealthGPT if…

  • You want the higher overall score and broader detector coverage
  • Raw bypass rate is your top priority (82.9% vs 76.9%)
  • GPTZero is your primary detection concern (83.6 vs 78.2)
  • Copyleaks is your primary detection concern (83.3 vs 72.8)
  • Originality.ai is your primary detection concern (78.8 vs 68.1)

Pick Phrasly AI if…

  • You want a free tier to test before subscribing
  • Budget matters and you prefer the lower-priced option ($14.99/mo vs $25.50/mo)
  • You want fewer quality penalties and cleaner output
  • Proofademic is your primary detection concern (80.1 vs 72.3)
  • ZeroGPT is your primary detection concern (73.4 vs 65.7)

Frequently asked questions

Is StealthGPT better than Phrasly AI?

In this stored five-detector scorecard, StealthGPT scored 71.47 overall compared to Phrasly AI at 71.10. StealthGPT wins on raw bypass rate (82.9% vs 76.9%) and leads on 3 of 5 detectors. The better choice depends on which specific detectors matter most to your workflow.

Which is cheaper, StealthGPT or Phrasly AI?

StealthGPT starts at $25.50/month. Phrasly AI starts at $14.99/month with a free tier.

Which AI humanizer is best for bypassing Turnitin?

This comparison does not include direct Turnitin test results. Results from Originality.ai do not establish how either tool performs against Turnitin. No tool can guarantee a detector outcome.

How were these AI humanizers tested?

This page contains stored summary figures. The original and rewritten samples, detector-run logs and complete scoring formula are not published here, so these results cannot currently be independently reproduced. Read the methodology page for the current evidence status.

Next move

Use this comparison alongside the full reviews and our testing methodology before making a subscription decision.

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