Are they doing something radically new involving machine learning which allows them to be much more productive?
Or have they refined or streamlined their scripting environments and automated build\deploy tools? Perhaps they have built a suitably large and mature framework of components from previous projects which allows greater code re-use? In these cases, using words like "Automation" and "AI" is just putting a new sticker on an old product.
Or are companies just using these buzzwords to give a positive spin to an event whose real reasons are actually more mundane and financial(weak market conditions, reducing bloat in workforce ). Maybe they are attempting to mask something more ominous like significant shift in the market away from offshoring?