Amazon Web Services, which has been building its own AI training chips for years now, just introduced a new version known as Trainium3 that comes with some impressive specs.

The cloud provider, which made the announcement Tuesday at its AWS re:Invent 2025, also teased the next product in on its AI training product roadmap: Trainium4, which is already in the works and will be able to work with Nvidia’s chips.

AWS used its annual tech conference to formally launch Trainium3 UltraServer, a system powered by the company’s state-of-the art, 3 nanometer Trainium3 chip, as well as its homegrown networking tech. As you might expect, the third-generation chip and system offer big bumps in performance for AI training and inference over the second-generation, according to AWS.

AWS says the sys

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