GPTZero AI detection supports German and Portuguese
We’ve released a major update to our multilingual model that outperforms competitors across the board. By training on more challenging human and AI data, we've achieved a less than 1% false positive rate on all supported languages (Model 3.2m).
AI-generated writing isn’t just an English-language issue. As language models grow increasingly sophisticated across different languages, detection tools have to keep up. This is why we’ve updated our multilingual AI detection model to be more accurate than ever.
We’ve released a major update to our multilingual model that outperforms competitors across the board. We’ve added support for German and Portuguese, and retrained on more recent French and Spanish data. By training on more challenging AI and human data, our AI detector has achieved a less than 1% false positive rate on all supported languages (Model 3.2m).
How did it perform?
We evaluated our model on benchmarks for each language we support.
Table 1 contains the improvement in FPR from our previous model. Our FPR increased slightly on French texts, but is now consistently below 1%.
Table 1: FPR Scores Per Language on Internal Benchmark
Table 2 contains the overall accuracy, recall, and false positive rate for the same benchmarks. This model outperforms our previous one on accuracy and recall for all languages.
Table 2: More Performance Metrics Per Language on Internal Benchmark
Table 3 compares our performance against our competitors. We created a benchmark of 1000 texts that represented all of our new multilingual data. This benchmark contains data from all supported languages.
Table 3: External Benchmark Results Across Competitors
Why this matters
Our commitment to having the industry-wide lowest false positive rate is driven by our mission to ensure responsible use of AI detection. Fewer false positives mean fewer incorrect accusations of plagiarism, all while providing reviewers and educators transparency into content origin. The latest multilingual model release demonstrates the effectiveness of our approach to AI detection. We are capable of rapidly improving our detector to meet user needs and stay true to our commitment to having the best AI detector.
If you have requests for more languages you would like to be supported, please fill out this form here and help us continue improving your experience.
