GPTZero vs Pangram: AI Detector Accuracy Comparison
See how GPTZero compares to Pangram in 2025. Our benchmark shows GPTZero leading in accuracy, recall, and classroom reliability.
See how GPTZero compares to Pangram in 2025. Our benchmark shows GPTZero leading in accuracy, recall, and classroom reliability.
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.
With our latest model update, GPTZero introduces higher granularity in our AI detector by adding a new classification called “Lightly edited by AI” or “Polished by AI”. This tag identifies text originally written by a human and later improved by AI.
Back in April, we released a major update (Model 3.1m) that outperformed competitors across the board. Since then, we’ve trained on more challenging human and AI data, and have achieved a less than 1% false positive rate on all supported languages (Model 3.2m).
Here at GPTZero, we’ve just launched our most advanced multilingual model yet. This is what’s new.