GPTZero
GPTZero is a leading AI detector designed to discern if content is generated by AI models like ChatGPT, GPT-4, Bard, and others.
Acquired GPTZero
Acquired · June 2026
GPTZero launched in 2023 as one of the first AI-content detectors, growing to roughly 19 million users and ~$30M ARR by helping educators, publishers and developers verify whether text was AI-generated. On June 23, 2026 Superhuman announced it was acquiring the company; GPTZero’s ~30-person team joined to lead authenticity work and its detection is being built into Superhuman Go. The service is still operating.
Acquired by Superhuman.
Last known pricing: Free tier + paid plans
Is GPTZero shut down?
No — GPTZero is still operating, but it no longer stands alone: it was acquired by Superhuman in Jun 2026 and continues under the acquirer's ownership. We list it in the ToolDirectory.AI graveyard's acquired-but-operating section and watch for post-acquisition changes.
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Overview
GPTZero: Bringing Transparency in a World Filled with AI Content
GPTZero stands out as the gold standard in AI detection, trained to detect various AI models such as ChatGPT, GPT4, Bard, LLaMa, and more. It offers a range of products, including an Origin Chrome Extension for browsing, a Writing Report for Google Docs, and an AI Detection API for businesses. With over 1 million users, GPTZero's dashboard is tailored for educators, providing features like batch file scans, API access, and scanning stats.
Acquisition note (June 2026): On June 23, 2026, Superhuman announced it is acquiring GPTZero. Terms were not disclosed. GPTZero’s roughly 30-person team joins Superhuman to lead its content-authenticity work, and GPTZero’s detection is being built into Superhuman Go. The service continues to operate.
Key Features:
- Origin Chrome Extension: Detect AI content while browsing the internet and generate writing reports on Google Docs.
- Writing Report: View behind-the-scenes statistics of a Google Doc, including AI content and writing process videos.
- AI Detection API: Integrate GPTZero's AI detection capabilities into your tools and workflows.
- Dashboard: Developed for educators, it offers features like batch file scans, API access, and scanning stats.
Ideal Use Case:
Educators aiming to detect AI-generated content in student submissions, writers ensuring the authenticity of their content, and businesses wanting to verify the origin of written material would find GPTZero invaluable.
Why use GPTZero:
- Accurate Detection: Recognizes content from various AI models like ChatGPT, GPT-4, Bard, and more.
- Diverse Applications: From browsing extensions to API integrations, GPTZero caters to various needs.
- Trusted by Many: Over 1 million users and endorsements from leading organizations.
- Continuous Improvement: GPTZero is always evolving, ensuring maximum accuracy with minimal false positives.
tl;dr:
GPTZero offers a comprehensive solution for detecting AI-generated content, ensuring transparency and authenticity in a world increasingly influenced by AI. It's a must-have tool for educators, writers, and businesses.
FAQ
Q: What does GPTZero do? A: GPTZero is a leading AI detector designed to discern if content is generated by AI models like ChatGPT, GPT-4, Bard, and others.
Q: Is GPTZero free? A: Pricing varies by plan. Visit the GPTZero pricing page for current tiers and details.
Q: What is GPTZero best for? A: GPTZero helps writers and content marketers draft, optimize, and scale long-form and short-form content.
Q: What can replace GPTZero ? A: Top alternatives to GPTZero include Notion AI, Writer AI, and Copy.ai. See our directory for in-depth comparisons.
Q: Who owns GPTZero? A: Superhuman — the acquisition was announced on June 23, 2026 (terms undisclosed). GPTZero continues to operate, with its team joining Superhuman to lead authenticity initiatives and its AI-detection technology being integrated into Superhuman Go.
Related
Looking for more options? Browse the AI Content Writing directory or read our best AI writing tools listicle. GPTZero has a Wikipedia entry and is tracked on Crunchbase.
Why Use GPTZero
