# MatX

> MatX is a Mountain View semiconductor company building chips designed exclusively for large language models. Founded in 2022 by ex-Google TPU engineers Reiner Pope and Mike Gunter, it aims to deliver an order-of-magnitude more performance-per-dollar for frontier model training and inference than current GPUs.

- **Founded:** 2022
- **Headquarters:** Mountain View, California, United States
- **Founders:** Reiner Pope (Co-Founder & CEO), Mike Gunter (Co-Founder & CTO)
- **Team size:** ~110 employees
- **Products:** MatX One, Software stack
- **Notable:** Raised $604M+ in total funding by early 2026, Closed a $500M Series B led by Jane Street in February 2026, Founders previously led core TPU and LLM efficiency work at Google

## Products & services

- **MatX One** — A purpose-built accelerator chip for large language model training and inference, combining partitionable systolic arrays with a hybrid SRAM + HBM memory system. Targets 10x better performance-per-dollar than current GPUs, low-latency decode, long-context support, and cluster scaling to hundreds of thousands of chips.
- **Software stack** — A co-designed compiler and runtime built around transformer workloads, optimized for distributed training and large-scale inference on MatX hardware.

## Achievements

- Raised $604M+ in total funding by early 2026
- Closed a $500M Series B led by Jane Street in February 2026
- Founders previously led core TPU and LLM efficiency work at Google
- Attracted Andrej Karpathy and the Collison brothers as angel investors

## Latest updates

- **2026-02** — Announced $500M Series B led by Jane Street and Situational Awareness LP, with Karpathy and the Collisons participating.
- **2026-02** — Confirmed MatX One tape-out expected within the year, with first shipments in 2027 via TSMC.

## Links

- Website: https://matx.com
- LinkedIn: https://www.linkedin.com/company/matxcomputing
- Twitter/X: https://x.com/MatXComputing

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Profile page: https://yespress.io/matx
Published by YesPress — https://yespress.io
Last updated: 2026-05-28