Two of the world's biggest cloud companies are moving to loosen Nvidia's grip on the market for artificial-intelligence chips.

Google and Amazon have each rolled out custom-designed silicon aimed squarely at Nvidia's dominant business, in what The Globe and Mail, Yahoo Finance and The Motley Fool all described as a "full-frontal assault" against the chipmaker.

The sharpest details center on Amazon. According to coverage from Gadget Review and MSN, Amazon's in-house Trainium chips may soon be sold externally rather than reserved for Amazon's own data centers. Those reports say the chips offer roughly 30% to 40% better price-performance than the alternative, and point to a potential revenue ceiling of around $50 billion — a figure striking enough that the headlines framed it as a possible "worst nightmare" for Nvidia.

Nvidia currently supplies the bulk of the high-end processors that power the AI boom, and its chips have been in heavy demand from the same cloud giants now building their own. By designing custom alternatives, Google and Amazon are signaling they want to control more of their AI supply chain and cut their dependence on a single outside vendor.

The sources here are largely market-and-finance commentary rather than detailed technical disclosures, so specifics beyond Amazon's Trainium claims are limited. What is clear is the direction: Amazon and Google are positioning their own chips not just for internal use but as competitive products in a market Nvidia has defined.

Why it matters: if a major customer like Amazon can offer comparable AI computing power at a meaningfully lower cost, it could chip away at Nvidia's pricing power and reshape who profits from the next phase of the AI race.