10 Best Free GPTzero Alternative in 2024

GPTZero has become a popular tool for detecting AI-generated content, designed to flag text that may have been written by models like ChatGPT. While it serves a useful purpose in reducing the reliance on AI for content creation, many users have found it less reliable than advertised. In fact, it often mistakenly labels human-written content as AI-generated, causing frustration among its users.

After thoroughly testing a range of AI detection tools, I've compiled a list of the 10 best GPTZero alternatives, available both for free and through paid subscriptions.

What is GPTZero and Why People Look for its Alternatives?

GPTZero is a free and reliable tool that detects AI content developed by a student at Princeton University. It detects the content generated by LLMs such as ChatGPT, Gemini, LLaM, and others. It uses perplexity and burstiness to calculate how likely an AI model would choose the same set of words in the document. By using advanced algorithms and techniques, it easily distinguishes between human and AI written content.

Despite strong algorithms, there is still room for improvement in GPTZero, making it unreliable. Many users find its results inconsistent and inaccurate. Moreover, its advanced features are costly and do not offer refund services. Therefore, the need to find a better GPTZero alternative becomes stronger.

You May be Interested: GPTZero Review.

Easy Way to Bypass AI Detectors

Since we are talking about AI detection, you might need to rephrase your AI content to bypass the AI detectors. Therefore, I suggest you use the Tenorshare AI Bypass to humanize your content. It is an amazing tool that easily converts AI text into human-written content without losing the context. It can outsmart the most advanced AI detectors such as CopyLeaks, ZeroGPT, Originaility, etc and helps you save time and money. Whether you're writing academic papers, blog posts, teaching materials, or other types of content, this tool is incredibly fast and easy to use.

Key Features of Tenorshare AI Bypass:

• 100% undetectable content : Converts AI-generated text into human-like writing, bypassing major AI detectors like GPTzero, Originaility, ZeroGPT and etc..

• Affordable plans : each users can use it for free, and the price plan start at just $9.99/month.

• Fast and intuitive : Simple and quick to use.

• Built-in AI detector : Includes an integrated AI detection tool to further ensure compliance.

10 Best GPTZero alternatives: Free and Paid

Originality.ai: Best for AI, Plagiarism Detection and Fact Checking

Being one of the oldest AI detection tools in the market, Originality AI scores for being the best as well. It could be a prime choice for you if you want to ensure content integrity by detecting any AI or plagiarism in the content. Furthermore, its fact-checking features allow you to be certain about the information presented in your content.

When it comes to pricing, Originality.ai is the best GPTZero free alternative since it offers credit-based pricing starting at $14.95/month. You can also pay-as-you-go for $60 with 6000 credits valid for 24 months.

Also Read: Honest Originality AI Review

BrandWell AI (Formerly known as Content at Scale): Best for AI Scoring Details

If you're looking for a GPTZero alternative with in-depth AI detection, BrandWell AI stands out. What sets it apart is its ability to break down AI detection into multiple dimensions, offering insights beyond simple flags. It analyzes patterns like word predictability, linguistic diversity, and text coherence, providing a detailed look into why certain content may be identified as AI-generated. This makes BrandWell AI particularly useful for those who need a thorough understanding of their content's authenticity.

Brandwell offers a free version that can scan up to 2500 characters, and its paid version starts at $49 per month for unlimited scans and additional features.

Also Read: Content at Scale Review

Writer: Best for Team Collaboration

If you work with a large enterprise or team, Writer AI is the best GPTZero free alternative for you. It offers AI detection and AI writing features to change your writing game. With its comprehensive AI scoring, you do not need to go through a lengthy scoring system. It simply calculates the percentage of the content that's been identified as AI.

The free version of Writer AI Detector offers 5000 words to be scanned. However, it offers 2 paid versions, i.e., the Team version that starts at $18/user/month for 5 users and the Enterprise version with custom pricing based on your needs.

Also Read: Writer AI Detector Review

CopyLeaks: Best for Lengthy Content

CopyLeaks is a standout tool for scanning long-form content, making it a top GPTZero alternative for handling extended documents. One of its key advantages is the ability to process large volumes of text without word count restrictions during free scans, which is especially useful for research papers, theses, and lengthy blog posts.

CopyLeaks conducts detailed, line-by-line scans to detect both AI-generated sections and plagiarism with impressive accuracy. Its advanced algorithms not only identify AI-written content but also generate in-depth reports that help users pinpoint flagged sections. The tool's seamless integration with enterprise platforms and LMS makes it versatile for both academic and professional use.

Although its free version is enough for basic needs, you can get a paid subscription for $7.99/month for up to 1200 credits. Moreover, you can purchase the AI detector and plagiarism checker as a package for $13.99/month.

Also Read: CopyLeaks Full Review

Sapling AI: Best for Integrating with Third-Party Tool

Sapling is a top-tier GPTZero free alternative, particularly for users looking for seamless integration with third-party platforms. Sapling connects effortlessly with a range of popular tools, including Chrome, Google Docs, Microsoft Outlook, and other Office applications, allowing users to enhance their workflow without disruption.

Beyond its integration capabilities, Sapling’s AI detection tool effectively identifies content generated by advanced AI systems like ChatGPT, Gemini, and Jasper, providing detailed reports on any flagged content.

The best part about Sapling AI is that its free version has no word limit and generates impressive results. However, you can buy its Pro version for $12/month to ensure more accuracy. It also offers custom pricing for enterprise needs.

Also Read: Sapling AI Detector Review

ZeroGPT: Best for Aggressive AI Detection

ZeroGPT is a widely popular GPTZero alternative known for its aggressive AI detection. It excels at identifying even the smallest traces of AI-generated content, making it a reliable tool for thorough scans. Capable of processing up to 15,000 characters at once, it's particularly useful for long-form text. Additionally, ZeroGPT supports batch file uploads and generates detailed PDF reports, enhancing convenience for users managing multiple documents.

ZeroGPT can fulfill your basic AI detection needs, but its advanced features come at a price starting from $7.99/month for the Pro version and $18.99/month for the Max version.

Also Read: In-Depth ZeroGPT Review

Winston AI: Best for File Uploads (Multiple File Types)

Winston AI excels in handling various file types, including text documents and images, making it highly convenient for AI detection. Its advanced OCR technology allows users to scan not only text files but also handwritten text and images, offering a broad range of detection capabilities. Winston AI provides a detailed AI prediction map that highlights AI-generated content at the sentence level, giving users a clear visual of potential AI-written sections. Additionally, it supports plagiarism checking and offers a Chrome plugin for seamless integration into your browsing activities.

Winston AI is ideal for users who need comprehensive content checks across different formats, making it a standout tool in detecting AI-generated text.

Winston AI offers multiple packages starting from $12/month. However, you can use it for free as long as it fulfills your AI detection needs.

Also Read: Winston AI Review

Crossplag: Best for Multilingual Input

Crossplag is a standout GPTZero alternative thanks to its ability to detect AI-generated content in 30 different languages, making it ideal for global users. This feature, combined with its use of advanced machine learning and natural language processing, ensures accurate AI detection. Crossplag also provides detailed AI prediction reports, offering clear insights into content originality. While effective, it occasionally faces challenges with paraphrased or hybrid content.

Crossplag offers a free plan for up to 1,000 words. After that, you can choose Pay as You Go for €9.95 (50 credits/5,000 words) or a Bundle plan for €149.95 (1,000 credits/100,000 words). Custom quotes are available for institutions.

Also Read: Crossplag AI Checker Review

Quillbot: Best for Basic AI Detection

Quillbot is widely recognized for its paraphrasing and grammar tools, but it also offers an AI content detector designed to identify AI-generated text. The tool provides users with a confidence score, making it easy to interpret how much of the content is likely AI-written. However, while its detection is useful for general writing, it has limitations, especially with more complex or mixed human-AI content. The AI detection is free for basic use but offers advanced features with a premium plan, which improves its accuracy and capacity to handle longer texts.

Despite its popularity, some users have reported that Quillbot may struggle with nuanced content and may occasionally flag human-written content as AI-generated. Therefore, it's recommended to use the tool as part of a broader editing process

Also Read: Quillbot AI Content Detector Review

Turnitin: Best for Academics

Turnitin is a well-established tool in academic environments, widely regarded as one of the best GPTZero alternative . Trusted by educational institutions globally, it specializes in scanning papers, assignments, and academic documents for AI-generated content. Its AI detection capabilities are integrated into its existing plagiarism detection systems, making it easy for educators to evaluate the authenticity of students' work.

Turnitin's AI detector is especially effective for student submissions, with more than 130 million papers processed for AI detection since the feature launched. It seamlessly integrates into platforms like Turnitin Feedback Studio, making it a convenient tool for both educators and students

The only drawback of Turnitin is that it can only be accessed via educational institutions. Institutes can buy Turnitin's membership by contacting sales and specifying their needs.

Also Read: Turnitin Review

Final Words

GPTZero is not an accurate AI detector as far as I have experienced. It generates inconsistent reports and sometimes flags the human-written text as AI, raising the need to find better alternatives to it. In this article, I have listed the 10 best GPTZero alternatives that not only provide diverse features but also ensure accuracy. Moreover, if your text is flagged as AI, I have suggested the best tool to bypass it, i.e. Tenorshare AI Bypass .