Defense tech darling Mach Industries hits $1.8B valuation, a 4x jump in a year |

Mach Industries, the three-year-old defense tech startup run by 22-year-old founder and CEO Ethan Thornton, has raised a $300 million Series C at a $1.8…

$60B AI chip darling Cerebras almost died early on, burning $8M a month |

Today, Cerebras Systems is a public company that sells AI chips for inference to giants like OpenAI and AWS. It held a blockbuster IPO on…