Inferact Raises $150M in Seed Funding

The maintainers of vLLM are building a company to fund the open-source project and develop a commercial inference engine.

Round size
$150M
Stage
Seed
Headquarters
United States
Announced
Jan 22, 2026

The serving layer beneath AI applications

Inference engines manage the work of running trained models for many concurrent requests. Inferact focuses on model compatibility, accelerator support and efficient serving as workloads grow beyond single-device deployments.

Open-source development remains central

The company intends to return optimizations to vLLM and support its developer community. Alongside this work, it plans a commercial engine for inference providers; the seed financing values Inferact at $800 million.

Sources

  1. Inferact: funding announcement
  2. Cooley: adviser confirms Inferact seed financing
  3. a16z: investing in Inferact
  4. TechCrunch: Inferact financing
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