We can read on the readme since March 16th:

News! The demo for a better and faster CogView2 (formal version, March 2022) is available! The lastest model also supports English input, but to translate them into Chinese often could be better.

Is this the same as the just released paper CogView2: Faster and Better Text-to-Image Generation via Hierarchical Transformers or is it a better model of CogView 1?

Thank you