What does GPTZero do?

GPTZero detects AI-generated text from models like ChatGPT, GPT-4, Claude, and others by analyzing perplexity and burstiness.

Who is GPTZero best for?

GPTZero is best for educators, publishers, content teams, hiring professionals, and legal teams needing to verify human writing.

Do I need to install anything to use GPTZero?

No, you do not need to install anything. Paste text into the web tool to use it.

Is GPTZero free to use?

Yes, GPTZero has a free tier that lets you scan 10,000 words per month.

Does GPTZero offer a free trial or demo?

Yes, the free tier acts as a trial with 10,000 words per month.

Does GPTZero have a plan for teams or businesses?

Yes, GPTZero works with over 100 organizations in education, hiring, publishing, and legal for teams and businesses.

Does GPTZero offer an API or integrations?

Yes, GPTZero offers an API for integration and customization support.

GPTZero: Reviews, Pricing, Alternatives & Features (2026)

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Visit GPTZero

GPTZero is a web-based AI content detector for content creators, educators, researchers, and teams that want to check whether text appears human-written or AI-generated.

Key capabilities include:

Paste, type, or upload files (DOC, PDF, TXT) and run a “Detect Origin” check (up to 1200 words in the on-page editor)
Model-oriented detection claims for text that may originate from tools such as ChatGPT, GPT-4, Gemini, and LLaMa
Sentence-by-sentence analysis with sentiment analysis to help review which parts look AI-generated
Language options shown for English and French

Pricing: Free AI detection is advertised on the site (a separate Pricing page is listed, but plan details are not provided in the scraped data).

What makes it notable: it combines text and file upload checking with sentence-level breakdown, and the site positions it as usable without free-tier limitations compared with some other AI detector tools.

Frequently Asked Questions About GPTZero

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