Undetectable AI vs GPTinf
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.
Undetectable AI
GPTinf
Look beyond the score
Compare the source and the rewrite. Check the facts, meaning and editing still required.
Use the evaluation checklist →AIHT Rating records
Edition and evidence details for each tool’s overall AIHT Rating.
Rating record: Undetectable AI
- input samples and rewritten outputs
- sample counts and run logs
- test settings and detector versions
- original overall-score formula
Correction history
No corrections are recorded for this edition.
Rating record: GPTinf
- input samples and rewritten outputs
- sample counts and run logs
- test settings and detector versions
- original overall-score formula
Correction history
No corrections are recorded for this edition.
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.
Undetectable AIGPTinfUndetectable AIGPTinfUndetectable AIGPTinfUndetectable AIGPTinfUndetectable AIGPTinfScroll horizontally to see all score columns.
| Metric | Undetectable AI | GPTinf | Higher published value |
|---|---|---|---|
| AIHT Rating | 80.09 | 61.53 | Undetectable AI |
| Bypass Rate | 94.1% | 63.8% | Undetectable AI |
| Meaning Preservation | 72.2 | 66.2 | Undetectable AI |
| Readability | 100 | 100 | Tie |
| Penalties | -8 (length inflation) | -5 (meaning drift, length deflation) | GPTinf |
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
Undetectable AI95.1GPTinf66.4
Proofademic
Undetectable AI96.7GPTinf65.1
ZeroGPT
Undetectable AI78.3GPTinf61.3
Copyleaks
Undetectable AI74.6GPTinf63.8
Originality.ai
Undetectable AI66.3GPTinf57.2Undetectable AI wins on 5 of 5 detectors. GPTinf wins on 0.
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.
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.
Undetectable AIGPTinfGPTinf is 37% cheaper at $12/mo vs $19/mo. Undetectable AI offers a free tier; GPTinf 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 Undetectable AI if…
- You want the higher overall score and broader detector coverage
- Raw bypass rate is your top priority (94.1% vs 63.8%)
- Meaning preservation matters to your workflow
- You want a free tier to test before subscribing
- GPTZero is your primary detection concern (95.1 vs 66.4)
Pick GPTinf if…
- Budget matters and you prefer the lower-priced option ($12/mo vs $19/mo)
- You want fewer quality penalties and cleaner output
- You have tested it yourself and prefer its specific output style
Reviews and rankings
Frequently asked questions
Is Undetectable AI better than GPTinf?
In this stored five-detector scorecard, Undetectable AI scored 80.09 overall compared to GPTinf at 61.53. Undetectable AI wins on raw bypass rate (94.1% vs 63.8%) and leads on 5 of 5 detectors. The better choice depends on which specific detectors matter most to your workflow.
Which is cheaper, Undetectable AI or GPTinf?
Undetectable AI starts at $19/month with a free tier. GPTinf starts at $12/month.
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?
Next move
Use this comparison alongside the full reviews and our testing methodology before making a subscription decision.
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