OpenAI might be building its own chip, but it’ll still be dependent on Nvidia — custom chip developed with Broadcom reportedly slips to Q3 2026 from Latest from Tom's Hardware on 2025-09-30 15:40 (#70DS1) OpenAI is widely understood to be developing a custom AI accelerator with Broadcom, part of a $10 billion partnership to design chips specifically for OpenAI's internal workloads.