Inertia Enterprises has raised $450 million to build one of the world’s most powerful lasers, which it hopes will serve as the foundation of a grid-scale power plant the fusion startup intends to start construction on in 2030. Inertia Enterprises is building on technology developed at the Lawrence Livermore National …

Anthropic is in the final stages of raising $20 billion in new capital at a valuation of $350 billion, Bloomberg reports, with investor demand leading the company to raise twice the funding it set out to obtain. The company raised $13 billion in equity funding just five months ago, but …

As AI data centers drive up electricity prices, London-based startup Tem thinks AI might be able to help solve it, too. Tem has built an energy transaction engine that relies on AI to cut prices relative to other energy traders. The company has signed up more than 2,600 business customers …

This week, AI chipmaker Cerebras Systems announced that it raised $1 billion in fresh capital at a valuation of $23 billion — a nearly threefold increase from the $8. 1 billion valuation the Nvidia rival had reached just six months earlier. While the round was led by Tiger Global, a …

Anthropic and OpenAI may be rivals, but their presidents Daniela Amodei and Gregory Brockman have one thing in common: they are both Stripe alumni. With former employees who went on to create dozens of startups, the fintech company has become one of the most prolific “founder factories” — and the …