GPTZero is an AI detection tool that identifies content generated by large language models (LLMs) such as ChatGPT, GPT-5, Gemini, Claude, Llama, and Deepseek. It analyzes text for patterns like perplexity, burstiness, and style to determine the likelihood of AI authorship. The platform offers an AI Detector, Advanced AI Scan, AI Vocabulary analysis, Hallucination Detector, Plagiarism Checker, Grammar Checker, Authorship Verification, AI Reviewer, Expert Feedback, and AI Vision. It integrates with Google Docs, Chrome, Canvas, and Zapier, and provides an API for custom integration. GPTZero supports multilingual detection for English, German, Portuguese, French, and Spanish, and is designed to reduce false positives for ESL writers. The tool is used by educators, students, writers, recruiters, cyber security professionals, and ML engineers across over 3,500 colleges and 100+ organizations.
Key Features
- AI Detection: Scans text for AI-generated content with sentence-level highlighting.
- Advanced AI Scan: Provides in-depth results on AI probabilities.
- Hallucination Detector: Identifies hallucinated citations and fake academic sources.
- Plagiarism Checker: Detects content from outside sources.
- Grammar Checker: Corrects grammar and spelling errors.
- Authorship Verification: Preserves originality and transparency through writing replay.
- AI Reviewer: Grades and delivers in-depth feedback.
- Expert Feedback: Provides feedback trained by domain experts.
- AI Vision: Detects AI in real-time while browsing.
- Integrations: Chrome extension, Google Docs, Canvas, API, Zapier.
Who It's For
- Teachers and educators fostering academic integrity.
- Writers ensuring authentic content.
- Students improving writing and avoiding false accusations.
- Recruiters verifying human-authored applications.
- Cyber security professionals defending against AI phishing.
- ML engineers training models with human data.
