OpenAI Buys Thousands of Apple Macs for AI Training, Challenging Nvidia's Hardware Dominance

OpenAI buys thousands of Apple Macs to train next-gen AI

OpenAI has bought tens of thousands of Apple Mac mini and Mac Studio computers for reinforcement learning and computer-use agent training, The Information reported on Saturday. The purchases expand Apple's role in AI hardware, an area long dominated by Nvidia. Anthropic is also using Apple hardware, reportedly renting Mac minis through Amazon Web Services for similar reinforcement learning and agent workflows. The buying comes days after Apple refreshed its Mac mini and Mac Studio desktop lines on August 25. The update added the M6 chip, Apple's first 2-nanometer processor, alongside M5 Pro, M5 Max and M5 Ultra configurations. The new Mac mini starts at $899. The Mac Studio starts at $2,499 with the M5 Max and $5,499 with the M5 Ultra, and the machines are scheduled to ship on September 22. Apple's unified-memory architecture lets its chips share memory between the CPU and GPU. That has made Macs more attractive for local AI workloads. Ben Thompson of Stratechery said Apple's and OpenAI's hardware moves are increasing pressure on Nvidia. The Information reported that Nvidia now sees Apple as its main competitor in local AI processing. The trend extends beyond large AI labs. Startups have begun building Mac-based data centers for AI workloads, and high-end Mac configurations have been sold out for months. Apple's Mac business is up 29% as developer demand for its hardware has climbed. Forbes said a Mac Studio with an M5 Ultra chip and 256GB of unified memory can run models with up to 284 billion parameters, even though Macs still struggle with the largest frontier open-weight models. For reinforcement learning and agent development, where workloads differ from large-scale pretraining, the economics of Apple silicon appear strong enough for OpenAI to invest at scale.

OpenAI's Massive Mac Buy Signals a New AI Strategy

OpenAI bought tens of thousands of Mac Minis and Mac Studios as it expands efforts to train AI agents capable of operating computers. According to The Information, people familiar with the company's plans said OpenAI is using the machines for reinforcement learning and remains eager to secure more units. The reported purchase can bedemanding AI workloads typically rely on large-scale accelerator infrastructure. Its Mac strategy instead targets a more specialized requirement: training agents that can interact with computers and perform multi-step tasks.