I have yet to see a true AI ( or ML ) based Video Codec, or some potential Generative Video Codec like what Google did with Audio For Voice. And if it cant be done for Audio I doubt it will work on Video given the complexity. The current working prototype of H.267 ECM 8.0 aims to squeeze another 40% to 50% reduction in bitrate from H.266 / VVC Codec. There will likely be some ML usage on the Encoder side, but in terms of codec the exploration path hasn't provided much evidence how it will fundamentally change the codec efficiency.