StealthGPT AI Review - Does it Beat the Detectors?

We’re back with another deep dive, this time with StealthGPT, a platform that positions itself as a solution for getting past AI detection tools.

From essays and blog posts to promotional emails, StealthGPT claims its technology can generate polished text that AI detectors can’t catch.

However, is it actually as good as it claims to be?

In this review, we’ll test StealthGPT text to see if it is still detectable by popular AI detectors like Originality.ai, Writer, and ZeroGPT.

In This Article

• What is StealthGPT?
• Is StealthGPT text still detectable by AI checkers? 
• Results of our AI detector tests.

Key Takeaways (TL;DR)

• StealthGPT is an AI platform built for students and writers that aims to change and humanize text so that it can get past AI detection tools.
• Is StealthGPT detectable? Yes, in our test for this review, StealthGPT’s text was identified as Likely AI with 100% Confidence by the Originality.ai AI Detector.

What Is StealthGPT?

StealthGPT positions itself as an AI writing platform that is built to try to get past virtually any detection system.

According to the company, the tool is designed to support a wide range of users, from students drafting research papers to marketers producing long-form content or emails, and anyone else looking for AI-assisted writing.

Why are people interested in StealthGPT?

The appeal of tools like StealthGPT often comes down to convenience. 

For some, it’s about meeting tight deadlines. For others, it’s a way to overcome writer’s block or speed up tedious writing tasks. This could potentially apply to a range of use cases from students to professionals to marketers.

StealthGPT, in particular, also notes in its tool that it’s built to help users find out whether they’ll “get caught for using AI…”  and then offers humanization features to help users avoid detection.

However, it’s best practice to always review AI use guidelines for projects, assignments, or contracts before using an AI tool.

Does It Work? The Results

But does StealthGPT.ai actually work? As part of our research, we decided to put it to the test.

The Test

To evaluate whether StealthGPT lives up to its bold promises, we designed a controlled experiment and compared its performance against three popular detection tools: Originality.ai, Writer, and ZeroGPT.

Step 1: We asked ChatGPT to generate a new article on the value of brand marketing. This unedited draft acted as our AI-only baseline.

Step 2: We ran the draft through all three detection platforms to capture benchmark scores, establishing how each tool responds to AI text.

Step 3: We then processed the same article using StealthGPT, which claims to rewrite AI-generated content so it appears authentically human.

Step 4: Finally, we submitted the StealthGPT output back into all three detection platforms to see whether the ‘stealthed’ version could pass any of the AI detection systems or if it still got flagged as AI.

The Results

Originality.ai Score

Original content (AI-generated): 100% Confidence that the text is Likely AI

StealthGPT Humanizer Version: 100% Confidence that the text is Likely AI

Writer Score

Original content (AI-generated): 83% Human-generated (17% AI-generated)

StealthGPT Humanizer Version: 92% Human-generated (8% AI-generated)

ZeroGPT Score

Original content (AI-generated): 91% AI-GPT

StealthGPT Humanizer Version: 87.73% AI-GPT

Findings Explained

Looking at the results side by side, one thing becomes abundantly clear. 

StealthGPT is still detectable.

• Originality.ai flagged both the ChatGPT draft and the StealthGPT version with 100% confidence as Likely AI.
• However, Writer proved less reliable, giving both outputs high “human” scores and failing to spot AI content.
• ZeroGPT showed only a slight drop in detection after StealthGPT processing (from 91% to 87% AI-GPT).

In other words, StealthGPT is still detectable by industry leaders like Originality.ai!

Read more about AI detection:

• AI Accuracy Study
• AI Detection Accuracy Studies — Meta-Analysis
• Is GPT-5.2 Content Detectable?
• Is Gemini 3 Content Detectable?

Frequently Asked Questions About StealthGPT

Is StealthGPT free?

You can try out StealthGPT.ai for free with its free trial. However, there are limitations, and in order to expand features, purchasing a subscription is required.

What is StealthGPT?

StealthGPT is an AI tool that offers features like a humanizer, which attempts to change AI-generated text so that it can pass AI detectors. However, in our tests, StealthGPT text was detectable by Originality.ai with 100% Confidence as Likely AI.

Who owns StealthGPT?

According to Crunchbase, StealthGPT was founded in 2023 and is built for students and writers as well as developers. Crunchbase also notes that 1 pre-seed funding round was announced in 2024.