Is GPTZero Down?

Quickest ways to check the current status of gptzero.me plus recent known issues and working alternatives if it's out.

Last editorial review: 2026-04-02

How to check right now

Known issues we've tracked

Non-native English speakers' writing gets flagged as AI-generated at higher rates, raising fairness concerns
2026-03Reddit r/professors
Detection accuracy drops significantly on content generated by Claude and GPT-4o with custom instructions
2026-02Reddit r/ChatGPT
Batch upload feature occasionally fails silently on large PDF files
2026-01G2 Reviews

Issues here are sourced from our editorial sweeps, not real-time telemetry. Newer issues may exist.

About GPTZero

Tier B (7.5/10). Leading AI content detector used by educators and publishers to identify AI-generated text