ZeroGPT

ZeroGPT checks whether text was written by AI. That is the core of it, and the rest of the site is built around that check.

ZeroGPT is an AI content detector with a set of writing tools: a plagiarism checker, summarizer, paraphraser, grammar and spell checker, translator, email generator and a chatbot called ZeroCHAT.

The free tier covers basic use.

Paid consumer plans are Pro at 7.99 a month, Plus at 14.99 and Max at 18.99.

All three remove ads, produce PDF reports of detections and keep a history of your detections without the text.

Higher plans raise the limits: Pro and Plus allow 100,000 characters per detection, while Max allows 150,000 and adds access through WhatsApp and Telegram.

Max also moves ZeroCHAT from version 4 to 5 and offers unlimited paraphrase modes.

Pro gives a one-time 750 words of plagiarism checking, whereas Plus and Max give monthly allowances.

Developers get a pay-as-you-go API in Beginner, PRO and VIP tiers.

AI detection starts at $0.034 per 1000 words, with unlimited integrations on every tier.

Batch limits and file sizes grow with each tier.