Is Grammarly AI Detector Reliable? Full Review and Insights

AI content detection has become a vital part of many industries, from education to publishing, to maintain the standard of quality writing. However, it is difficult to analyze and distinguish between AI and Human content. Here, tools like Grammarly AI Detector claim to identify content written by AI with full accuracy. But does it live up to its claims? I have a previous background in testing AI detectors like GPTZero , Scribber, and Copyleaks AI detector. In this review, I am going to explore Grammarly AI Detector’s accuracy and its effectiveness. Let’s dive into this Grammarly AI Detector review!

What Is Grammarly AI Detector?

Grammarly AI Detector is an AI-based tool designed to help users verify the originality of written content by identifying text that may have been generated by artificial intelligence. The tool is particularly useful for content creators, educators, and publishers seeking to ensure the authenticity of the material they work with. With its fast detection capabilities and simple interface, Grammarly AI Detector aims to be a go-to solution for checking the source of written content.

My Experience with Grammarly AI Detector

Grammarly has long been a trusted tool for grammar and spell-checking, but its foray into AI detection has been less than impressive. After spending time testing the Grammarly AI Detector, I found its performance underwhelming, especially considering the reputation of the brand. Despite being marketed as a reliable tool for identifying AI-generated content, the results were inconsistent and often inaccurate. The tool frequently misclassified human-written content as AI-generated, which could lead to serious issues for professionals and educators who rely on accurate assessments of originality. Grammarly AI Detector seems to struggle with distinguishing between sophisticated human writing and AI-generated text, undermining its usefulness in critical scenarios.

Pros and Cons of Grammarly AI Detector

User Feedback on Grammarly AI Detector

Quora Review: Some users on Quora have pointed out that Grammarly’s AI Detector tends to flag a significant portion of human-written content as AI-generated, causing confusion for those relying on it for content verification.

Reddit Review:A user on Reddit expressed frustration with Grammarly’s AI detection, noting that it mistakenly flagged several human-written articles as AI-generated. This led to concerns over its practicality for professional use, particularly in sectors that demand high accuracy.

Testing the Accuracy of Grammarly AI Detector

To properly evaluate Grammarly AI Detector, I conducted several tests using various types of text—completely human-written, AI-generated, and mixed content. Here are the findings:

Test 1: Human-Written Content

I composed an original 400-word essay on "Possibility of Access to Specialist Skills and Expertise" This text was written naturally, without any assistance from AI tools.

Results

Grammarly AI Detector flagged 40% of the text as AI-generated, despite it being fully written by a human. This raises concerns about the detector’s ability to accurately differentiate between human and AI content, especially when handling more complex writing styles.

Test 2: AI-Generated Content

Next, I tested the tool using a 400-word article created by an AI language model like GPT. The content was formal but generic.

Results:

The tool successfully identified 22% of the text as AI-generated, showing that it does perform relatively well when the content is clearly machine-generated. However, it did fail to catch the remaining 78%, suggesting there is room for improvement in detecting subtler AI inputs.

Test 3: Mixed AI + Human-Written Content

For the final test, I used a 700-word report combining both human-written and AI-generated sections. The human portion was nuanced, while the AI-generated content was more straightforward.

Results:

Grammarly AI Detector misidentified around 84% of the human-written parts as AI-generated. This result indicated that while the tool can spot basic AI-generated text, it struggles when tasked with evaluating more intricate writing styles that blend both human and AI contributions.

Test Results Summary:

Pricing of Grammarly AI Detector: Is It Free?

Grammarly AI Detector offers both free and premium versions, but the differences between them are noticeable.

• Features: The free version allows for simple analysis, but the premium option includes more advanced tools such as detailed reports and the ability to integrate with other content-checking systems.
• Accuracy: Users upgrading to the paid version may see slight improvements in detection accuracy, although even the premium version has limitations in properly identifying AI-generated text.
• Word Limit: The free version restricts analysis to 1,000 words per submission, while the premium plan permits larger documents, accommodating up to 5,000 words based on the subscription tier. However, even the paid options often fail to justify their price when weighed against the detection tool's inconsistent results.

Tenorshare AI Detector: Best Alternative to Grammarly AI Detector

If you’re seeking a reliable alternative to Grammarly AI Detector,Tenorshare AI Detector stands out as one of the best options. This tool offers superior accuracy when detecting AI-generated content, thanks to its advanced algorithms specifically designed for this task.

In my tests, Tenorshare consistently outperformed Grammarly in detecting both simple and nuanced AI-generated text. It successfully flagged AI content with much greater precision, reducing the false positives commonly seen in Grammarly's detector.

Key Features of Tenorshare AI Detector

• User-Friendly Interface: Both tools have a simple interface, but Tenorshare’s design includes more intuitive features.
• Highly Accurate (99%): Trained on millions of texts to give nearly perfect detection results.
• Supports 30+ Languages: Works with content in many languages, making it useful worldwide.
• Advanced AI Technology: Uses the latest AI for smart and detailed content analysis.
• Secure Data Protection: Keeps your information safe with strong SSL encryption.

FAQs

How accurate is Grammarly AI Detector in detecting AI-generated content?

Based on testing, Grammarly AI Detector has inconsistencies, often misclassifying human-written text as AI-generated. Its accuracy is less reliable with more complex content.

Is Grammarly AI Detector free?

Yes, Grammarly offers a free version of its AI detector, but the premium version provides additional features like detailed reports and higher word limits.

How does Grammarly AI Detector compare to Tenorshare AI Detector?

Tenorshare AI Detector is more accurate than Grammarly’s tool, especially with nuanced text, and offers better detection of AI-generated content with fewer false positives.

Who should use Grammarly AI Detector?

Grammarly AI Detector may be helpful for casual users checking basic content, but educators, publishers, or professionals needing higher accuracy may want to explore alternatives like Tenorshare AI Detector.

Conclusion

In Grammarly AI Detector review you get the clear in depth knowledge about its capability. It provides an accessible way for users to detect AI-generated content, but its performance isn’t flawless. For those who are looking for more precise tool, here the best recommended tool is Tenorshare AI Detector . It is known for its robust detection capabilities, it delivers consistent and accurate results, making it a great choice for those who need a more reliable solution.