Smodin AI Detector Review: Accuracy, Features, and Pricing

Smodin released its own AI detector, but how accurate is it really? 

In this review, I put Smodin’s AI Detector to the test to see how well it can spot AI-generated text. I’ll walk you through the test results, explain its main features and limitations, and give a realistic view of what to expect. 

By the end, you’ll have a clear idea of how it works and whether it fits into your writing process.

Let’s get started.

What is Smodin?

Smodin is a platform that originally started as a plagiarism checker but has since expanded into a suite of tools designed to help writers, students, and professionals manage originality and detect AI-generated writing. 

What is Smodin’s AI Detector?

Smodin’s AI Detector is built to identify whether a piece of text was written by a human or generated by AI. It works by scanning text for stylistic patterns, word choices, and structural markers commonly produced by tools like ChatGPT or other large language models.

Key features include:

• Real-time detection: Results are given instantly while you write or upload content.

• Multi-language support: Works across more than 100 languages.

• Detailed reports: Explains why certain text is flagged as AI-written.

• User privacy: Data isn’t stored or shared, and you don’t need an account to use it.

Beyond the detector, Smodin offers several additional tools to support writers:

• AI Detection Remover – removes flagged AI text and rewrites it.

• Paragraph Rewriter – improves readability and structure.

• Plagiarism Checker – compares text against billions of sources for originality.

• AI Humanizer – makes AI-generated text sound more natural.

• Undetectable AI Tool – rewrites content to avoid being flagged by detection systems.4

How Accurate is Smodin’s AI Detector?

Smodin officially claims industry-leading accuracy, saying its detector can identify human writing with 98–99% confidence and AI-generated text with over 90% accuracy. It also emphasizes features like real-time scanning and multi-language support, which suggest a strong technical backbone. 

But we wanted to see how well those claims hold up in practice. 

To do this, we ran a series of tests using different types of text: pure AI, a mix of human and AI, and AI content that had been “humanized” through another rewriting tool.

Test 1: Pure AI Text

Setup:

For the first test, we generated a short essay directly with ChatGPT-5, making sure no human editing or rewriting was involved. This gave us a clean example of fully AI-written text.

Results:

Smodin’s AI Detector flagged the text as 100% AI-generated.

Observations:

This result matched expectations. Since the sample was entirely AI-written, Smodin correctly identified it without hesitation. For students or writers worried about submitting pure AI drafts, this test shows that Smodin is highly sensitive to unedited machine text.

Test 2: Mixed AI + Human Writing

Setup:

Next, we tested a more realistic scenario. We took a human-written essay paragraph created before the release of ChatGPT and asked ChatGPT-5 to continue the piece. The final text had 187 human-written words (41%) and 454 total words.

Results:

Smodin detected 34% AI-generated and 66% human-written.

Observations:

Smodin successfully flagged parts of the AI continuation but underestimated how much of the text was machine-written. This means that if you combine AI with your own work, the detector may not capture the exact ratio, but it will still reveal that the piece isn’t fully human-authored. This is important—using AI “just a little” doesn’t guarantee it will go unnoticed.

Test 3: Humanized AI Text by QuillBot

Setup:

For the final test, we took the 100% AI essay from Test 1 and ran it through QuillBot’s Humanizer in basic mode, which rewrites AI text to appear more natural.

Results:

Smodin flagged the rewritten text as 93% AI-generated and 7% human-written.

Observations:

Even after QuillBot rewrote the essay, Smodin still marked most of it as AI-generated. This shows that paraphrasing tools aren’t enough to avoid detection, since Smodin appears to examine deeper writing structures rather than just surface-level word changes.  

Smodin’s AI Detector: Pros and Cons

From my experience testing Smodin and reading user feedback, here’s the breakdown:

Pros:

• Accurate: It flagged pure AI text perfectly and could detect mixed content.

• Easy to Use: The interface is simple, and I didn’t need an account to check text.

• Extra Tools: I liked that it also offers rewriting, plagiarism checking, and AI humanizing in one platform.

• Multi-Language Support: Works in over 100 languages, which is great for multilingual writing.

Cons:

• False Positives: It sometimes underestimates AI in mixed texts, so I treat results as a guide, not a guarantee.

• Limited Free Trial: You can only use it three times a week for free, and many features are locked.

• Speed: Large documents can take a while to process.

• No Free Detail Analysis: Sentence-level analysis requires a subscription.

Overall, I found Smodin useful for spotting AI content and improving my drafts, but I wouldn’t rely on it alone for fully judging originality.

Smodin’s AI Detector Pricing

When it comes to pricing, Smodin offers a mix of free and paid options, but there are limits to the free trial.

Free Trial:

• You can use the AI Detector up to 3 times per week, with a 5,000-character limit per use.

• Basic features are available, but advanced tools like sentence-level analysis are locked behind a subscription.

Paid Plans:

Smodin has three main subscription plans, and paying annually is generally cheaper than paying month to month.

• Writing – $15/month: This plan provides access to tools for essay writing, rewriting, research, summarizing, and humanizing text.

• Reviewing – $25/month: In addition to the Writing tools, this plan includes the AI Detector, Plagiarism Checker, Translator, Omni, Chat, and AI Grader.

• Ultimate – $30/month: This plan combines all features from the Writing and Reviewing plans, giving full access to every Smodin tool.

For anyone who wants to use the AI Detector more frequently or for more detailed checks, at minimum the Reviewing plan is required, since the Writing plan does not include AI detection.

Can You Bypass Smodin’s AI Detector?

When using AI tools, some writers may wonder if it’s possible to bypass detection. While it’s tempting to rely on simple rewriting or swapping a few words, our tests show that Smodin is still able to detect heavily AI-generated text, as in Test 3 with QuillBot, which flagged 93% of AI content even after basic humanization. This shows that superficial edits aren’t enough—more comprehensive changes are necessary.

Using a Professional Humanizer:

I tested the EssayDone Humanizer, which rewrites AI text more thoroughly to sound natural. This tool doesn’t just replace words—it changes sentence structures, adjusts tone, and introduces subtle linguistic variations that mimic human writing patterns.

Why It Works:

By focusing on both linguistic and structural changes, the humanizer makes the text less predictable and more varied, which helps avoid detection by advanced AI detectors like Smodin.

Demonstration:

Using the 100% AI-generated text from Test 1, the EssayDone Humanizer reduced the AI likelihood from 100% to 9%, showing a clear improvement over simple paraphrasing tools. This suggests that comprehensive humanization can be effective in making AI-assisted writing appear more authentically human.

5 Alternatives to Smodin’s AI Detector 

FAQ

Is Smodin’s AI Detector 100% accurate?

No detector is perfect; Smodin can identify most AI-generated text but may under- or overestimate AI presence, especially in mixed or humanized writing.

How to bypass Smodin’s AI Detector?

Simple rewriting is usually detected. Comprehensive humanization that changes sentence structure and style is more effective, though ethical considerations apply.

Will my professor use an AI detector?

Some do, depending on their policies.

Can I check my own work?

Yes, AI detectors can be used before submission.

Are AI detectors legal?

Yes, they are legal tools for academic and professional use.

Is Smodin free?

A limited free trial exists; full features require a subscription.

Conclusion

In this review, I looked at Smodin’s AI Detector, testing its accuracy with pure AI text, mixed writing, and humanized content. 

I also discussed its extra features, pricing plans, and the practical limits of free use, as well as methods like humanization for adjusting AI-generated text. 

Overall, this article aims to give you a clear understanding of how the detector works, what to expect from its results, and how it can fit into your writing workflow. I hope this overview is useful for anyone navigating AI-assisted writing.