OpenAI has reportedly explored investing in its own chip fabs to the tune of $7 trillion, but now those ambitions appear to have been scaled back. Instead of negotiating with TSMC to build a dedicated wafer factory, which is ridiculous when you think about it, the AI model maker is believed to be pursuing the fabrication of its own machine-learning accelerating ASIC with the help of Broadcom and Marvell on a TSMC node.