🧠 What Is GPTHuman.ai?
GPTHuman.ai is an AI humanizer that claims to bypass all major AI detectors. It also includes:
- An AI detector
- A ChatGPT watermark remover
- Support for over 50 languages
They also claim to be “trusted by 1M+ users”, putting them in the top tier of AI humanizers by user count — though it's unclear how accurate that number is.
🚀 What We Tested
We evaluated GPTHuman.ai across the following:
- AI Humanizer
- AI Detector
- User Interface
- Pricing
🧪 Humanizer Test Results
We tested a 300-word ChatGPT-generated text across four major detectors after running it through GPTHuman.ai’s humanizer:
| Detector | Result |
|---|---|
| Turnitin | ❌ 100% AI |
| GPTZero | ❌ 100% AI |
| ZeroGPT | ❌ 100% AI |
| Quillbot | ❌ 82% AI |
While the Quillbot score improved slightly, none of the detectors were bypassed. This was disappointing considering the platform's guarantee to "bypass all AI detectors".
🧪 AI Detector Accuracy
We tested GPTHuman.ai’s own AI detector with three inputs:
- AI content
- Human-written content
- AI content rewritten by their own humanizer
Here’s what happened:
- ✅ AI text was correctly flagged as 0% human
- ✅ Human-written content was correctly flagged as 100% human
- ✅ Humanized text was flagged as 99.8% human
Compared to platforms like Justdone, which previously generated random and fake detection scores, GPTHuman.ai’s AI detector is reliable and consistent.
🖥️ UI & Experience
The UI is simple and clean, with a landing page similar to GPTZero. It's actually decent compared to many competitors, especially platforms like Grubby AI with clunky, inconsistent designs.
- Outputs load without bugs or lag
- Consistent design and colors across the platform
No major usability complaints here.
💵 Pricing Breakdown
GPTHuman.ai offers four tiers:
| Plan | Price/month | Word Limit | Max Words/Output |
|---|---|---|---|
| Free | $0 | 300 words total | 300 |
| Starter | $15 | 25,000 words | 750 |
| Plus | $25 | 60,000 words | 1,200 |
| Unlimited | $49 | Unlimited* | 2,000 |
💡 Note: Unlimited use is “subject to abuse guardrails.”
For the price, we expected better humanization performance.
Final Verdict
GPTHuman.ai fails to deliver on its core promise.
- ❌ Failed to bypass GPTZero, ZeroGPT, Turnitin, and Quillbot
- ❌ Pricing is high given the results
- ✅ AI detector is accurate
- ✅ UI is solid
Looking for an AI humanizer that bypasses AI detection?
👉 Try TwainGPT — the most effective AI humanizer available.