Inferact Launches With $150 Million Funding At $800M Valuation To Commercialize vLLM As Inference Demand Surges
By Amit Chowdhry ● Jan 22, 2026
Inferact, a new AI infrastructure startup founded by creators and core maintainers of the open-source vLLM inference engine, has launched with $150 million in seed funding at an $800 million valuation, positioning the company to push performance gains in large language model serving while keeping vLLM’s development in the open. The seed round was co-led by Andreessen Horowitz and Lightspeed Venture Partners, with participation from Sequoia Capital, Altimeter Capital, Redpoint Ventures and ZhenFund. Inferact also listed additional backers including The House Fund, Striker Venture Partners, Laude Ventures, Databricks Ventures, GC&H, and the UC Berkeley Chancellor’s Fund.