Since its founding in 2014, a16z Bio+ Health has raised four funds of nearly $3 billion each, including a $1.5 billion fund that closed in 2022.

Mining companies spend billions on exploration. Durin thinks it can slash costs.

The money will fund a rapid expansion, including dozens more megawatt-hours of battery storage and plans for a domestic battery factory.

OpenAI just co-led a $43 million Series A into deepfake defense startup Adaptive Security.