ZeroGPT

Free plan

What the maker publishes

AI detection

The detector analyzes text for AI generated content and provides sentence level breakdowns and percentage scores. source

API and webhooks

The developer API provides text detection and humanization, and supports webhooks with signature verification and automatic retries. source

Company history

The about page says ZeroGPT began in early 2024. source

Detection caveat

The detector FAQ says no AI detector is 100% accurate and recommends combining automated detection with human judgment. source

File support

The AI detector supports .txt, .docx, .pdf, and .odt uploads; free accounts can analyze files up to 5,000 characters. source

Founded

2024 source

Humanizer

The humanizer rewrites AI generated text, offers seven writing tones, and supports up to 5,000 characters for free guests. source

Integrations

The API page describes webhook workflows that can trigger email notifications, Slack messages, or database updates. source

Intended users

The about page names educators, students, publishers, SEO professionals, and businesses among its users. source

Models detected

The site says it detects content from ChatGPT, Claude, Gemini, DeepSeek, Llama, and Mistral, among other models. source

Payments and renewal

The privacy policy says premium payments are processed through Stripe and Razorpay, card information is not saved by ZeroGPT.org, and subscriptions do not automatically renew. source

Plagiarism checker

The plagiarism checker compares submissions with web pages, academic papers, and other published content, and offers free checks up to 5,000 characters per submission. source

Privacy

The privacy policy says submitted text and uploaded files are not stored on its servers, while also noting that third party advertising cookies and trackers are used. source

Support

The API page advertises 24/7 support. source

Checked against the maker's pages on 7 Oct 2026.