vLLM Runs on 500,000 GPUs: a16z Talks with Core Maintainer Simon Mo
a16z · x · 2026-08-07
a16z published a deep-dive conversation with Simon Mo, core maintainer of vLLM and founder of Inferact, revealing how the open-source inference engine scaled to run on half a million GPUs at any given moment.
Key discussion points include:
- Open Source Infrastructure: The advantages and challenges of running open models in actual production environments.
- Model Releases & Ecosystem: Behind-the-scenes drama of day-zero model releases and the tangible benefits of models like Kimi K3.
- Evolving Licenses: An analysis of why open-source model licenses are currently shifting.
- Commercialization & Future: Insights on building a company atop an open-source project and the implications of a 99% GPU cost drop.
Related event: a16z Talks with vLLM Maintainer on Open-Source AI Inference(2 posts)→
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