Pangram Extends AI Detection to Video and Adds Image Checks to Its Chrome Extension

Subscribers can upload a video and get an assessment that separates clips that are partly AI from those generated entirely by AI, together with a heatmap marking which parts of the footage are likely synthetic, according to Engadget. Pangram said the underlying model "particularly excels at frontier AI video detection" and that in one internal test it flagged AI content with more than 98 percent accuracy, doing significantly better than other detection tools. On Wednesday the company published a blog post titled "Introducing Pangram Image 1.0", which it describes as its AI image and video detector.

The release takes a text-detection business into the formats that platforms, publishers and brands find hardest to police as video generators improve. The accuracy figures are the company's own and have not been independently checked.

Pangram Image 1.0 was previously available as a research preview. In the Chrome extension it now scans images automatically as users browse and flags those likely to be AI-generated. Pangram said that in testing it caught more than 99 percent of AI images with a false positive rate of 0.27 percent. Results for images smaller than 512 by 512 pixels will carry a reduced-confidence disclaimer. In a demonstration that chief executive Max Spero shared from Pinterest, the extension returned an "unsure" result on two images that were clearly not genuine photographs, Engadget noted.

Spero said on X that smartphone processing made the work harder. "Most phone cameras, including iPhones, do some level of AI postprocessing to add detail to real photos," he wrote, so the model had to cope with that processing while still telling AI edits apart from fully generated images. He told Pirate Wires that the company delayed the image model to test it on several iPhone 18 Pro handsets, because it had at first flagged pictures from their cameras as AI.

The video and image tools are available now to paying subscribers. Free account holders can check a small number of images without upgrading.