Amazon announced on Tuesday that Uber is expanding its cloud services contract with AWS to run more ride-sharing features on Amazon's proprietary AI chips. This expansion includes increased reliance on Graviton, a low-power ARM-based server CPU, and a new trial of Trainium3, an AI chip designed by AWS as a competitor to Nvidia's offerings. While this move is less a direct long-term threat to Nvidia's market dominance, it represents a significant strategic victory for Amazon over its cloud rivals, Google and Oracle. Historically, Uber operated its own data centers. However, in 2023, the company initiated a major transition to external cloud providers, signing multi-year agreements with Oracle and Google to move the majority of its IT infrastructure off-premise. At the time, Uber highlighted its intention to shift massive workloads and introduce ARM-powered compute instances into an environment previously dominated by x86 architecture. This strategy notably involved utilizing ARM chips from Ampere, which were available through Oracle's cloud platform. The connection between Ampere and Oracle reveals the complex web of relationships in Silicon Valley. Ampere was founded by Renee James, a former Intel executive who was not promoted to CEO. Leveraging her influence as an investor at Carlyle and her board seat at Oracle, James secured funding to launch the company. Oracle initially owned about one-third of Ampere, a stake that led to James stepping down as an independent Oracle director. James had previously played a key role in Oracle's 2016 acquisition of NetSuite, a deal that later faced shareholder lawsuits alleging overpayment. By December 2024, the landscape shifted further when Softbank acquired Ampere from Oracle. Oracle sold its stake for a pre-tax gain of $2.7 billion, and James left the company entirely. Oracle co-founder Larry Ellison explained that the company sold Ampere because in-house chip design was no longer a competitive advantage for their data centers. Instead, Oracle has pivoted to purchasing chips, signing massive deals with Nvidia to build data centers for OpenAI and its Stargate project. These entities, along with Softbank, are part of a network of circular investments intended to fund large-scale AI infrastructure. Despite this history, AWS has successfully secured a major contract from Uber, one of Oracle's star customers. Uber's decision to return to the cloud ecosystem with AWS is driven by the performance of Amazon's in-house designed chips. This aligns Uber with other major technology firms, including Anthropic, OpenAI, and Apple, which have either signed on to or increased their usage of AWS services due to their proprietary silicon. AWS CEO Andy Jassy stated in December that the Trainium chip line had already generated billions in revenue, signaling that Amazon's strategy to offer competitive, cost-effective alternatives to Nvidia is gaining substantial traction among enterprise clients.