This is our most ambitious announcement yet. Two new models: Pangram 4 and Pangram Image. Pangram 4 completely reimagines how we approach the problem of mixed authorship, by adding a tokenwise head onto the classifier to give every token a prediction given the full document context. We also wrote a 38-page technical report detailing our experiments, methodology, and evals. Pangram Image is a completely new modality, bringing our detection expertise to AI-generated image and videos. In my early testing, it has worked shockingly well, even in strange cases like real photos of AI-generated bodega menus. Today marks a huge step in the frontier of AI detection technology. I'm so excited to finally share with you all!