Nikon disqualifies the winner of its Small World in Motion microscopy video competition after determining the winning submission does not comply with the contest’s rules on generative AI. The original entry had been announced as first place and later drew scrutiny after microscopy experts questioned its accuracy, with the concerns spreading online.

Multiple outlets report that Nikon cited the generative-AI provisions in its rules as the basis for disqualification. BBC adds that Nikon is re-evaluating its contest rules and procedures, following the backlash. The Verge notes that the winning video was described as showing tiny hair-like structures (cilia) moving in a child’s airway. Outlets broadly agree the key issue is whether AI was used in producing the clip and whether that use was permitted under Nikon’s competition guidelines.