Baseten Nears $13 Billion Valuation in Rapid Funding Surge

The proposed deal, which would represent a 160% valuation increase in less than half a year, utilizes a split-priced structure. Sources indicate that while some participants are buying in at a $13 billion valuation, others are entering at $11 billion. This tactic allows startups to project higher headline figures while managing investor expectations. The round is reportedly co-led by Spark Capital, Sands Capital, Altimeter Capital, and Wellington Management.

Founded in 2019, the company capitalizes on the ongoing demand for efficient AI model deployment. Baseten focuses on the inference layer—the stage where models process user prompts and generate outputs. By routing requests to optimized, often open-source, alternatives rather than relying solely on high-cost proprietary models, the platform promises reduced latency and lower operational overhead for enterprise clients.