For the past few years, a group at Stanford University has issued a lengthy document called the "AI Index" which is an extensive snapshot of the state of Artificial Intelligence work, spanning from the research world into commercial and governmental applications. They've just released the 2021 edition, which can be found at

https://aiindex.stanford.edu/report/


The web page includes a very succinct summary of highlights. There are also links to predecessor reports from earlier years.

Clifford Lynch
Director, CNI