ChatZero model (browser ONNX build)
The browser-ready conversion of the DeBERTa-v3-large detector that the checker runs on your device.
Original gradient AI text detectorShantanu Thorat's DeBERTa-v3-large classifier from the PAN 2026 AI-detection competition.
Lightweight fallback modelThe smaller RoBERTa-based model used on low-memory devices.
Transformers.js documentationThe browser machine-learning library that loads and runs the classifier locally.
RAID benchmarkA benchmark designed to evaluate AI-generated text detectors across models, domains, and attacks.
OpenAI retires its AI classifierOpenAI's July 2023 note explaining that its classifier was removed because of its low accuracy.
Why we emphasize limitations
Benchmarks and real-world withdrawals show that detector performance varies by model, writing type, length, and editing. That is why we expose passage-level results and explicitly advise against using them as proof.