AI inference startup Baseten reportedly raising $1.5B months after its last mega round
In Brief
2:20 PM PDT · June 18, 2026
AI inference company Baseten is close to finalizing a stunning $1.5 billion funding round at a $13 billion valuation, the WSJ reports. Just five months ago, the startup announced that it had raised a $300 million Series E at a $5 billion valuation. And that round was just nine months after raising a $150 million Series D.
If finalized, this latest round would represent a 160% increase in valuation in less than half a year. However, the WSJ reports that this is a split-priced round, a tactic startups are using to boost their headline valuation and make lead investors look good on paper. Some investors in this latest funding round are reportedly coming in at a $13 billion valuation, while others at $11 billion, sources told the Journal. This deal is said to be co-led by Spark Capital, Sands Capital,...
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