alt Hacker NewsI ran exiftool on an image I just generated:
$ exiftool chatgpt_image.png
...
Actions Software Agent Name : GPT-4o
Actions Digital Source Type : http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgori...
Name : jumbf manifest
Alg : sha256
Hash : (Binary data 32 bytes, use -b option to extract)
Pad : (Binary data 8 bytes, use -b option to extract)
Claim Generator Info Name : ChatGPT
...
Exif isn't all that robust though.
I suppose I'm going to have to bite the bullet and actually train an AI detector that works roughly in real time.