January 23, 2026 — Inferact, an AI startup founded by the creators of the open-source project vLLM, has officially launched after raising $150 million in seed funding, valuing the company at $800 million. The round was co-led by Andreessen Horowitz (a16z) and Lightspeed Venture Partners, with participation from Sequoia Capital, ZhenFund, and others. It ranks among the largest seed rounds ever, underscoring rapidly growing investor conviction in AI inference infrastructure as a critical layer of the AI stack.

January 23, 2026 — Inferact, an AI startup founded by the creators of the open-source project vLLM, has officially launched after raising $150 million in seed funding, valuing the company at $800 million. The round was co-led by Andreessen Horowitz (a16z) and Lightspeed Venture Partners, with participation from Sequoia Capital, ZhenFund, and others. It ranks among the largest seed rounds ever, underscoring rapidly growing investor conviction in AI inference infrastructure as a critical layer of the AI stack.

vLLM의 주역들이 설립한 인퍼랙트가 1.5억 달러의 실탄을 확보하며 AI 경제학의 패러다임 전환을 선언했습니다. 수조 원을 쏟아붓는 모델 훈련은 결국 ‘비용’일 뿐, AI가 사용자에게 정보를 전달하고 가치를 창출하는 유일한 순간은 ‘추론’이라는 일침입니다. AI포스트 핵심 요약 ✅

Inferact secures $150M to commercialise vLLM, unlocking faster, cheaper AI for UK businesses. What this means and how to act now.

The seed round values the newly formed startup at $800 million.

Cursor shipped subagents. The IDE can now spin up parallel specialized agents that each get their own context window, meaning complex refactors don't…

vLLM’in geliştiricisi Inferact, 150 milyon dolar yatırım aldı

Projeto open source de inferência de IA se torna empresa com aporte liderado por Andreessen Horowitz e Lightspeed.

Projeto open source de inferência de IA se torna empresa com aporte liderado por Andreessen Horowitz e Lightspeed.

Projeto open source de inferência de IA se torna empresa com aporte liderado por Andreessen Horowitz e Lightspeed.

The creators of the open source project vLLM have announced that they transitioned the popular tool into a VC-backed startup, Inferact, raising $150 million in seed funding at an $800 million valuation. The round was co-led by Andreessen Horowitz and Lightspeed Venture Partners, confirming TechCrunch’s earlier reporting that vLLM has raised capital from a16z. Inferact’s debut mirrors the recent commercialization of the SGLang project as RadixArk, which sources told us secured capital at a $400 million valuation led by Accel, as we reported on Wednesday.

The creators of the open source project vLLM have announced that they transitioned the popular tool into a VC-backed startup, Inferact, raising $150 million

The creators of the open source project vLLM have announced that they transitioned the popular tool into a VC-backed startup, Inferact, raising $150 million

The creators of the open source project vLLM have announced that they transitioned the popular tool into a VC-backed startup, Inferact, raising $150 million

The creators of the open source project vLLM have announced that they transitioned the popular tool into a VC-backed startup, Inferact, raising $150 million

The creators of the open source project vLLM have announced that they transitioned the popular tool into a VC-backed startup, Inferact, raising $150 million