xAI closes $6 billion Series B
Closed a $6 billion Series B. Participants included Valor, Vy Capital, a16z, Sequoia and Fidelity
Why it matters
The valuation was not disclosed in the announcement
Source — Primary sources first; secondary reports are labelled “Press”
Officialx.aihttps://x.ai/news/series-bAdded in Week 35, 2026 · See that week