Presumably Tiny Tapeout. https://tinytapeout.com/

They group dozens to hundreds of designs on one chip. The end result is that even hobbyists can afford to have their small ASIC on real silicon. It's still expensive but it's within reach of a serious enthusiast with a steady job.

https://app.tinytapeout.com/calculator The number of "devkits" is the number of chips you'll get, the number of tiles is the size of your design. You can see how many tiles current projects use here: https://app.tinytapeout.com/shuttles/ttsky26d