Products & Apps
Pangram 4 + Pangram Image
Pangram 4: a 6x-larger AI text detector with token-level attribution, plus image detection in preview
Co-founder Max Spero joined the show for Pangram 4: 6x the parameters of v3, a claimed 1-in-24,000 false positive rate on pre-2022 human text, 98.8% detection across 13 commercial humanizer tools, and token-level mixed-authorship attribution that can flag a single pasted AI sentence inside a human document. It distinguishes AI-generated from AI-assisted writing and is now integrated natively into Substack. Pangram Image ships in research preview at a claimed 99.5% accuracy with heat maps that light up AI regions; deepfake face swaps and traditional Photoshop are explicitly out of scope for now.
1 in 24,000 false positive rate on human pre-2022 documents98.8% humanizer-tool detection across 13 tools99.5% claimed image-detection accuracy (research preview)