Pangram
lastmod 2026-11-11created 2026-11-111 edits
Detects AI-generated parts of photos and videos
About
- An AI-generated content detection service. Following its AI text detection, it released the image detection model Pangram Image 1.0 and Image Flash 1.0, a lightweight model specialized for video detection
- Image 1.0 highlights AI-generated regions with a heatmap, even when AI imagery is mixed into a real photo. Released as 1.0 after a research preview lasting several months
- Trained to handle social media compression and downscaling as well as added blur and noise. The minimum input size was lowered from 512×512 to 256×256 (images under 512 show a notice that confidence may be lower)
- In its own evaluation, accuracy was 99.96% on 100 real photos and 1,200 synthetic images made with 12 generators. Also compared on academic benchmarks such as X-AIGD, Mirage-Test, AIGenImages2026, and Community Forensics
- Flash 1.0 analyzes uploaded videos frame by frame and marks the segments judged to be AI. On DF26, which distinguishes real from AI videos of a single person speaking, it scored 98.7%, 29 percentage points above the next-best detector, and it also claims top results on AIGVDBench and Ivy-Fake
- The video comparison used 1,529 videos in total: 129 real social media videos and 100 synthetic videos from each of 14 generative models. The synthetic videos were created from the first frame of a real video plus a scene description written by a VLM, so the scenes and subjects match
- Image 1.0 is integrated into the Chrome extension, which flags AI content while browsing social media, shopping sites, rental listings, and more. The API supports both image and video detection