The best alternatives of ZeroGPT are GPTZero, Writer AI, Copyleaks, Originality AI, Brandwell AI, and Sapling AI content detector.
ZeroGPT is a popular tool designed to detect whether content has been written by a human or generated by an AI like ChatGPT or GPT-4. It has gained traction among educators, publishers, and content creators who need to verify text authenticity and uphold originality standards. However, it’s far from the only tool in this growing niche.
Several competitors offer more advanced features, better accuracy, or broader compatibility with various AI models.
Many users look for ZeroGPT competitors due to false positives, limited free usage, or lack of transparency in how results are generated. In this guide, we’ll explore the most reliable and efficient ZeroGPT alternatives that help ensure content credibility and authenticity.
Worldwide Rank and SEO Metrics of ZeroGPT
- Domain Authority: 36
- SEMrush Global Rank: 49,378
- SimilarWeb Global Rank: 42,541
- SimilarWeb Country Rank: #7,123 (United States)
- Total Traffic: More than 3.5 million monthly visits
- Bounce Rate: 46%
- Average Visit Duration: Around 1 minute 45 seconds
What Can You Do With ZeroGPT?
- Detect whether a text is AI-generated or written by a human.
- Paste or upload text files for AI detection.
- Generate detailed AI detection reports.
- Use multi-language detection for broader usability.
- View percentage-based probabilities of AI vs. human content.
- Analyze long-form documents like essays or reports.
Why Do You Need Alternatives to ZeroGPT?
- Accuracy Concerns: Occasionally generates false positives or false negatives.
- Limited Free Usage: Free version has character or usage limits.
- Lack of Transparency: Algorithms and detection methods are not fully disclosed.
- Slow Performance: Some users report lag during peak usage.
- No API for Developers: Limited integrations for automated workflows.
- Better Alternatives Exist: Other tools offer more robust features like bulk scanning or API access.
Comparison of ZeroGPT With Other AI Content Detectors
| Tool | Best For | Max Input Size | API Access | Free Version | Plagiarism Check | Unique Features |
| GPTZero | Education, academia | Long-form (10k+ chars) | Limited | Yes | No | Sentence-level detection, “highlighted” analysis |
| Writer.com | Marketing, SEO | ~1,500 characters | No | Yes | No | Part of a content creation suite |
| Content at Scale | Blogging, SEO | 25,000+ characters | No | Yes | No | Real-time heat maps, SEO-tailored |
| Hugging Face Detector | Research, devs | Varies (open-source) | Yes (custom) | Yes | No | Open-source AI model |
| Sapling.ai | Business, CX teams | Medium input | Yes | Yes | No | Chrome extension support |
| Copyleaks | Education, enterprise | Full-length documents | Yes | Limited | Yes | Plagiarism + AI detection |
| Originality.AI | Agencies, professionals | Full documents | Yes | No (pay-per-use) | Yes | High accuracy, team support |
| Crossplag | Academia, global users | Long-form | No | Yes | Yes | Multi-language support |
| Corrector App | Bloggers, casual users | Short to medium | No | Yes | No | Clean UI, fast scans |
| Kazan.io | New users, casual | Short input | No | Yes | No | Community-driven feedback |
List of The 6 Best Alternatives to ZeroGPT
Here are the top alternatives of ZeroGPT:
1. GPTZero
GPTZero was built specifically for educators and offers one of the most user-friendly AI content detection experiences. It supports long-form content like student essays and research papers, making it ideal for academic use. This ZeroGPT alternative offers sentence-level scoring and a unique “highlighted” mode to show suspected AI-generated sections.
Its intuitive dashboard and ability to detect ChatGPT, GPT-4, and other models make it a strong contender in the list of the best ZeroGPT competitors. With a reported 99% accuracy rate, it detects text from models like ChatGPT, Gemini, Claude, and LLaMA.
GPTZero is used by over 8 million people and 3,500 schools and universities to check if content was written by a human or generated by AI. The tool includes features like writing replays, plagiarism detection, and source checking, helping users understand how content was created.
It works directly in platforms like Google Docs, Google Classroom, Canvas, and Moodle, making it easy to use in classrooms and workplaces. Built by researchers focused on transparency, GPTZero helps preserve original writing and build trust in the digital age.
Why Should GPTZero Be Considered as an Alternative to ZeroGPT?
- Provides detailed downloadable reports for documentation and verification.
- Allows batch scanning of up to 250 files at once, ideal for bulk review needs.
- Supports up to 10 million word overages, reducing usage limits concerns for heavy users.
- Enables page-by-page scanning for in-depth analysis of long documents.
- Offers custom LMS integration for a seamless fit into institutional workflows.
- Includes a Chrome extension for real-time detection within everyday browsing or writing tools.
- Features a dedicated API with support for 17 coding languages, enabling flexible platform integration.
- Built-in role and account management for team collaboration and shared usage tracking.
GPTZero Pricing:
| Plan | Price (Annual) | Word Limit | Key Features |
| Essential | $8.33/month (billed $99.96/year) | 150,000 words/month | Basic AI Scan, Grammar Check, AI Vocabulary Check, Chrome Extension |
| Premium | $12.99/month (billed $155.88/year) | 300,000 words/month | All of Essential + Advanced Scan, Writing Feedback, Plagiarism Checker, Source & Citation Tools |
| Professional | $24.99/month (billed $299.88/year) | 500,000 words/month | All of Premium + 10M word overage, Batch Scan (250 files), Page-by-Page Scan, Team Collaboration |
2. Writer AI Content Detector
Website: https://writer.com/ai-content-detector/
Writer is an enterprise-focused generative AI platform that offers a robust suite of tools, including a free AI content detector that checks up to 5,000 words for signs of AI-generated text.
The detection tool is accessible through the Writer app or API, making it ideal for integration into enterprise workflows. Built on Palmyra LLMs and supported by features like AI guardrails, Graph RAG, and AI Studio, Writer helps businesses maintain content quality, brand consistency, and compliance.
The platform supports industries like retail and insurance, offering tailored solutions through trusted AI agents. For teams seeking scalable, secure, and customizable AI writing support, Writer provides a comprehensive solution with transparency and control at its core.
Why Should Writer AI Be Considered as an Alternative to ZeroGPT?
- Built for enterprises with team collaboration, user roles, and admin controls
- Offers AI detection as part of a complete generative AI platform
- Supports custom AI agent creation with governance and output control
- Grounds AI responses in business data using Knowledge Graphs
- Meets top compliance standards including SOC 2 Type II and HIPAA
- Integrates with tools like Google Docs, Chrome, Figma, and Microsoft Office
- Provides unlimited AI-generated content for enterprise users
- Includes an API for flexible platform integration and automation
- Allows detailed configuration of writing tone, style, and brand voice
Writer AI Content Detector Pricing:
| Plan | Pricing | Users | Key Features |
| Starter | $29/user/month (billed annually) | Up to 20 users | 100+ prebuilt agents, Ask Writer, 5 custom agents, basic governance, 50K words/user |
| $39/user/month (billed monthly) | Knowledge Graph (1), Chrome/Figma/Office extensions, 1GB storage | ||
| Enterprise | Custom pricing | Unlimited | Everything in Starter, custom agents at scale, full data connectors, 50GB+ storage |
| Dedicated implementation team, advanced governance, private cloud option |
3. Brandwell AI Content Checker
Website: https://brandwell.ai/ai-content-detector/
Brandwell AI Content Detector is known for supporting large text inputs (up to 25,000 characters) and showing detailed detection insights. This ZeroGPT alternative is ideal for long-form bloggers, SEO agencies, and publishers looking to avoid AI content penalties.
BrandWell’s AI Detector is a real-time content analysis tool built to identify text generated by models like ChatGPT, Gemini, and Claude. It goes beyond basic classifiers by using a proprietary system designed to catch robotic patterns in website content, blog posts, emails, and social media updates.
With a simple interface and support for mixed AI-human text, BrandWell helps ensure that content feels natural, trustworthy, and brand-safe—without needing advanced technical know-how.
Why Should Brandwell Be Considered as an Alternative to ZeroGPT?
- Detects AI-generated content in real-time using a proprietary tech stack
- Focuses on identifying robotic-sounding language across blogs, emails, and social media
- Includes a built-in plagiarism checker alongside AI detection
- Offers a full content creation and SEO optimization suite, not just detection
- Allows users to verify, edit, and rewrite content within the same platform
- Supports competitive analysis, entity scoring, and topic clustering
- Integrates with WordPress and Shopify for direct publishing
- Provides white-label options and client collaboration tools for agencies
- Backed by a robust content intelligence system for improving writing quality
- Includes a 7-day free trial with optimization audits for up to 20 blog posts
Brandwell AI Content Detector Pricing:
| Plan | Price | Users & Sites | Key Features |
| Essentials | $249/month | 1 user / 2 sites | AI writing editor, 25 SEO article credits, AIMEE chatbot, 30+ AI agents, plagiarism & AI detector, full RankWell access |
| Agency | $499/month | 2 users / 4 client sites | Everything in Essentials plus white-label access, unlimited audits, unlimited AI agent use, guest clients, marketing agency training |
| Custom | From $4/post | Flexible | Scalable API, bulk content pricing, dedicated support, full platform access |
4. Sapling AI Content Detector
Website: https://sapling.ai/ai-content-detector
Sapling.ai’s AI Content Detector is a browser-based tool and extension designed to identify AI-generated text from models like ChatGPT, Gemini, Claude, and LLaMA with high accuracy.
Developed by former researchers from Stanford, Meta, and Google, the detector highlights both full-text and sentence-level AI probabilities using a Transformer-based system. It supports real-time analysis, PDF and DOCX uploads, and integrates directly into web environments through a Chrome extension.
Helpful for educators, SEO experts, and content reviewers, Sapling’s detector offers a free version with a 2,000-character limit, while Pro and Enterprise users can analyze up to 100,000 characters per submission. The tool is regularly updated to track the latest language models, offering precision, flexibility, and API access for scalable use.
Why Should Sapling AI Be Considered as an Alternative to ZeroGPT?
- Developed by AI researchers from Stanford, Meta, and Google
- Provides per-sentence AI detection with low-perplexity flagging
- Allows up to 100,000 characters per scan for Pro and Enterprise users
- Offers a Chrome extension to detect AI content directly on any webpage
- Supports uploads of PDF and DOCX files for document-based detection
- Includes chat assistance and advanced writing suggestions beyond AI detection
- Offers a separate metered API plan tailored for developers and large-scale use
- Features domain-level administration and team analytics for organizations
- Regularly retrained on latest LLM outputs for improved accuracy
- Enables Single Sign-On (SSO) and SCIM for enterprise user management
Sapling AI Pricing:
| Plan | Price | Best For | Key Features |
| Free | $0/month | Individuals testing | Basic suggestions, 20 snippets, use on free domains, AES-256 encryption |
| Pro | $25/month | Individuals using premium features | Unlimited snippets, premium suggestions, rephrase, chat assist, AI detector, support |
| Enterprise | Starts at $15/user/month (min. 10 seats) | Teams and organizations | All Pro features plus team analytics, domain admin, SSO/SCIM, advanced security |
| API | Metered (usage-based) | Developers and platforms | Separate plan for API access, suitable for high-volume AI detection needs |
5. Copyleaks
Website: https://copyleaks.com/ai-content-detector
Copyleaks AI Detector is an enterprise-grade tool built to identify AI-generated content with over 99% accuracy, supporting more than 30 languages and detecting outputs from ChatGPT, Gemini, Claude, and other leading models. Trusted by institutions and businesses worldwide, it offers advanced features like AI Insights, which explain why content is flagged as AI, and customizable sensitivity to suit different risk levels.
It also detects mixed human-AI content, paraphrased AI, and even AI-generated source code, all within a secure, SOC 2, SOC 3, and GDPR-compliant environment.
Designed for use across education, publishing, and enterprise governance, Copyleaks integrates via API, browser extension, or LMS, making it a comprehensive solution for maintaining originality, compliance, and brand integrity in the age of generative AI.
Its detailed reports and LMS integrations make it ideal for institutions and academic verification.
Why Should Copyleaks Be Considered as an Alternative to ZeroGPT?
- Offers combined AI and plagiarism detection in over 100 languages
- Provides over 99% detection accuracy with a 0.2% false positive rate
- Supports detection of mixed human and AI-generated content
- Features AI Insights that explain why text is flagged as AI-generated
- Detects paraphrased and manipulated text, including text spinner outputs
- Includes source code plagiarism detection across multiple programming languages
- Allows scanning of URLs and sitemaps, not just plain text
- Provides PDF export and sentence-by-sentence detection reports
- Offers customizable sensitivity settings to reduce false positives
- Supports enterprise-grade API and LMS integrations with SOC 2 and GDPR compliance
Copyleaks Pricing:
| Plan | Price | Credits Included | Key Features |
| AI + Plagiarism Detection | $13.99/month (billed $167.88 annually) | 1,200 credits (250 words/credit) | Detect AI and plagiarism simultaneously, multilingual support, paraphrasing detection, 2 users |
| Plagiarism Checker | $8.99/month (billed $107.88 annually) | 1,200 credits | Award-winning plagiarism checks, source code and cross-language detection, 2 users |
| AI Detector | $7.99/month (billed $95.88 annually) | 1,200 credits | AI detection for 30+ languages, supports ChatGPT, Gemini, Claude, 2 users |
| Enterprise & LMS | Custom pricing | Custom | API + LMS integrations, SSO, custom permissions, dedicated support, white-label option |
6. Originality AI
Website: https://originality.ai
Originality.ai is a powerful content verification platform designed for serious web publishers, agencies, and writers who need to ensure their work is human-written, plagiarism-free, factually accurate, and ready to rank. With 99% detection accuracy, it goes beyond standard AI checkers by offering patented technology, paraphrase detection, fact-checking tools, and a readability score checker—all in one place.
Unlike tools focused solely on detection, Originality.ai provides a full editorial workflow with support for team management, full-site scans, and a Chrome extension that visualizes the human writing process to reduce false positives.
Trusted by leading marketers and publishing teams, it’s built specifically for professionals gives organizations complete control over the quality and integrity of their content in a world dominated by generative AI.
Why Should Originality AI Be Considered as an Alternative to ZeroGPT?
- Detects both AI-generated and paraphrased AI content with high precision
- Offers an integrated fact-checking aid to reduce AI hallucinations and factual errors
- Provides a readability score checker based on a 20K+ page Google ranking study
- Features team management tools with scan history, tagging, and access control
- Supports full-site scans and content audits directly from URLs
- Includes a Chrome extension that visualizes the human writing process to dispute false positives
- Allows unlimited scans and team members with flexible credit-based pricing
- Offers three detection models (Lite, Turbo, Multilanguage) to match different content policies
Originality AI Pricing:
| Plan | Price | Credits | Key Features |
| Pay as You Go | $30 (one-time) | 3,000 credits (100 words/credit) | 2-year expiry, AI checker, plagiarism checker, readability, grammar, fact checking, SEO optimizer |
| Pro | $12.95/month | 2,000 credits/month | Everything in Pay as You Go plus file uploads, full site scans, Chrome extension, team management |
| Enterprise | $136.58/month | 15,000 credits/month | Everything in Pro plus API access, 365-day scan history, priority support |
Find More Alternatives and Competitors For Different Tools:
