Baseten is reportedly nearing a $1.5 billion round at a $13 billion valuation

The jump comes five months after its $300 million Series E at $5 billion

Conviction and Spark Capital, both prior investors, are reportedly returning to co-lead the new round

Baseten, the San Francisco-based AI inference platform, is reportedly closing in on a $1.5 billion funding round that would value the company at up to $13 billion, according to a report from The Wall Street Journal.

The reported round comes just five months after Baseten, founded by Tuhin Srivastava, Amir Haghighat, Phil Howes, and Pankaj Gupta, announced a $300 million Series E at a $5 billion valuation led by IVP and CapitalG. That followed a rapid step-up to a $2.15 billion valuation just months prior.