Untether AI的节能芯片赌注：AMD收购团队，2025年破产

做的是什么生意

Untether AI designed AI inference accelerators using an in-memory compute architecture that promised much lower power and higher speed than Nvidia GPUs, selling chips such as the speedAI240 for edge and data-center workloads.

启动资金：$152M USD (~$208M CAD) raised over its lifetime, including a $125M round led by Intel Capital in July 2021

起因

Founded in Toronto in 2018 by Martin Snelgrove, Darrick Wiebe and Raymond Chik, Untether AI built AI inference chips around an in-memory computing architecture that combined memory and compute in one package to cut power and latency. The pitch won big backers early: a $125M USD round led by Intel Capital in July 2021, with Radical Ventures, CPP Investments and General Motors Ventures among the investors.

经过

After the 2021 round the company never closed another major financing, and as Nvidia's dominance of AI hardware grew, fundraising attempts collapsed — worsened by US tariff uncertainty in 2025, per The Globe and Mail. Untether kept shipping products, launching the speedAI240 Slim inference accelerator in October 2024 with a claimed 3x energy-efficiency gain, but it ran out of runway. In early 2024 it hired Intel veteran Chris Walker as CEO to lead the fundraising push; he left a month before the AMD deal.

结果

In June 2025 Untether entered an acquihire with AMD, which took the engineering team without buying the company's assets or IP; Untether VP Bob Beachler said the deal 'marks the end of Untether AI's journey' and that speedAI and imAIgine would no longer be sold or supported. On October 14, 2025 the remaining company filed for bankruptcy with about $25M in assets against $128M in liabilities, appointing PricewaterhouseCoopers as trustee.

可借鉴之处

巧妙的芯片架构并非抵御Nvidia的护城河：Untether的内存芯片获得分析师好评，但2021年后缺乏资金，需求集中于GPU，最终资金耗尽。