Image Models Still Can't Emit Pure #FF0000 — a r/ChatGPT User Documented the Off-by-a-Few Drift With Curves
r/ChatGPT·low signal
A r/ChatGPT post (223 upvotes, 118 comments) asked ChatGPT for a pure red image and got something close but measurably off; the poster exaggerated the deviation using GIMP's curves tool and hosted the results on Imgur specifically to dodge Reddit's recompression. It's a small, clean demonstration that diffusion decoders don't produce exact channel values on demand — relevant to anyone attempting to generate assets, chroma-key plates, or color-calibration targets with an image model. Single-source community observation, not a formal study.