Boston-based Lightmatter, which uses light for AI computing, adds $155M led by GV to its $154M Series C at a $1.2B valuation, taking its total funding to $420M+ (Rachel Metz/Bloomberg)

Rachel Metz / Bloomberg:

Boston-based Lightmatter, which uses light for AI computing, adds $155M led by GV to its $154M Series C at a $1.2B valuation, taking its total funding to $420M+  —  The AI boom has lifted the startup’s prospects. … Lightmatter said Tuesday that it raised $155 million in a deal led by GV …