Apple on Thursday disclosed its iPhone sales dipped slightly during the holiday-season quarter, signaling a sluggish start to the trendsetting company’s effort to catch up to the rest of Big Tech in the race to bring artificial intelligence to the masses.

Apple reported $18.5 billion in sales in greater China last quarter, comfortably below consensus estimates of $20.9 billion.

Apple executives on Thursday forecast relatively strong sales growth, a sign the company will recover from a dip in iPhone sales as it rolls out artificial intelligence features. The forecast comes after Apple delivered a slight drop in iPhone revenues for the holiday shopping quarter and lagged Wall Street estimates,