September 1, 2026Emilio Andere

Wafer Raises $40M Series A to Build AI That Optimizes AI

We’re excited to announce that Wafer has raised a $40 million Series A, co-led by Marathon and Chemistry, with participation from Wing, AMD Ventures, and Outset Capital. Existing investors Fifty Years and Y Combinator are also doubling down on Wafer.

We’re joined by an incredible group of angels, including Jeff Dean, CEO of DiscoveryLoop; Guillermo Rauch, CEO of Vercel; Andy Fang, CTO of DoorDash; Kyle Vogt, CEO of Bot; Akshay Kothari, COO of Notion; Matthew Prince, CEO of Cloudflare; Scott Stephenson, CEO of Deepgram; and more.

AI That Optimizes AI

Most inference optimization today is manual, service-heavy, and performed once before deployment. We believe it should be continuous.

Wafer learns from a workload’s traffic patterns and performance constraints, then finds the optimal deployment across the model, engine, kernels, and hardware. Our vision is AI that optimizes AI—giving every deployment the leverage of an expert inference-performance team that continually finds new ways to improve performance per dollar.

What Comes Next

This capital will help us automate more of the inference optimization loop and accelerate our work toward inference infrastructure that keeps getting better.

Thank you to the customers who trusted us with their workloads, the partners who built alongside us, the investors who believed in our mission, and every member of the Wafer team who has worked tirelessly to turn this vision into reality.