It's not a prototype. The Grid has been running for customers for five years. It already builds tens of millions of dollars of electronics a year. Across CircuitHub we've shipped more than 2.2 million boards, placed more than 150 million parts and served more than 26,000 engineers.
I could be misremembering, but wasn't it mostly a software offering at that point?
From TFA
It's not a prototype. The Grid has been running for customers for five years. It already builds tens of millions of dollars of electronics a year. Across CircuitHub we've shipped more than 2.2 million boards, placed more than 150 million parts and served more than 26,000 engineers.