Sources: neocloud Fluidstack closed a $1.5B round led by Jane Street at an $18B+ valuation; in July, the company announced a $750M round at a $7.5B valuation (Iain Martin/Forbes)

Neocloud Fluidstack secured $1.5 billion at an $18 billion valuation, while Microsoft will begin reporting Azure revenue separately following a shift to two business segments. Meta released Muse Spark 1.3 for improved coding performance, and Google launched Gemini 3.8 Flash Cyber for cybersecurity partners. Additionally, G20 nations endorsed the US-proposed Carolina Principles for AI regulation.