GPTZero achieved 97% recall on Claude Sonnet 4.5 at 1% false positives, surpassing its initial 95% on GPT-5. Detection remains strong across new models, with recall now over 99%.
In GPTZero's August 2025 update, we improved our GPT-5 detection rate to over 97%, adapting quickly to the latest AI models.
GPTZero’s new Model 3.7b improves drastically on the latest language models from the top providers, just in time for the new 2025/2026 school year.
An overview of how AI detectors like GPTZero, TurnitIn, and Copyleaks compare in terms of accuracy rate, error rate, false positives and negatives for identifying AI-generated content.
Compare the functionality, features, and pricing of Copyleaks to GPTZero, an advanced AI detector and plagiarism checker.
Learn more about GPTZero’s newest advancements in AI detection against AI bypassers, humanizers, and paraphrasers like Phrasly, Undetectable, and Quillbot
Learn how AI content detectors spot the difference between AI and human writing – with a simple breakdown of the cutting-edge technology behind the tools.
Uncover the most frequent words that generative AI tools like ChatGPT overuse, so you can avoid sounding like a bot.
