I'm buying AMZN but GOOGL is also doing a split?
Yes split 20 to 1 just like Amazon.

Google parent Alphabet announces 20-for-1 stock split
It wouldn't be the first time Larry Page and Sergey Brin have make their stock more affordable. It happened in 2012 with the launch of a third class of shares.

Why Investors Shouldn't Care About Alphabet's Stock Split | The Motley Fool
Google's parent has announced a 20-for-1 split, but investors shouldn't care even though the per-share price will be much lower post split.