Rebellions, a prominent innovator in AI inference infrastructure, has announced a landmark collaboration with SK Telecom (SKT) and Arm. The three-way partnership aims to architect a new era of AI inference infrastructure specifically tailored for “Sovereign AI” and telecommunications-optimized data centers.
This initiative focus on building a powerful AI server that will connect Arm’s first dedicated data center CPU the Arm AGI CPU with Rebellions’ specialized AI accelerators. The integration of these pieces of hardware aims to create a strong, energy-saving alternative to the architectures dominated by GPUs, which will be able to meet the increasing worldwide demand for localized and secure AI processing.
A Full-Stack Approach to Next-Generation Data Centers
The collaboration is designed to be comprehensive, spanning the entire value chain from initial hardware design to real-world deployment. At the heart of this hardware stack is the integration of Rebellions’ RebelCard™ (powered by the Rebel 100 NPU) and the Arm AGI CPU, which is built on the Arm® Neoverse® CSS V3 architecture.
To ensure the solution is market-ready, the partners are co-developing a unified software stack, including specialized firmware. These systems will undergo rigorous validation within SKT’s live AI data center environments. The testing phase will focus on verifying performance and stability for large-scale data workloads and sovereign AI models, including plans to run SKT’s proprietary foundation model, A.X K1, on the new infrastructure.
Also Read: Meta and Arm Announce Strategic Partnership to Engineer Next-Generation Data Center Silicon
Targeting Global Markets and Sovereign AI
Beyond technical validation, the alliance intends to pursue commercial opportunities on a global scale. Rebellions is particularly focused on penetrating the Asian market and supporting public sectors and telecommunications firms that require independent, secure AI infrastructure often referred to as Sovereign AI.
RebelCard™ has a unique competitive edge since it is powered by 5th generation High Bandwidth Memory (HBM3E) and chiplets technology. This means that the system is capable of delivering the same level of performance like the high-end graphics cards but consumes less power.
Executive Commentary
“By providing our ‘RebelCard’ which offers overwhelming performance and power efficiency alongside our full-stack software, Rebellions has become a core pillar supporting next-generation AI data centers,” says Jinwook Oh, CTO of Rebellions. “We expect this ‘one-team’ collaboration of experts to serve as a significant precedent in the industry for building AI-specialized infrastructure.”
“By providing a full package that combines inference-optimized infrastructure with our proprietary foundation model, A.X K1, we will further strengthen our competitiveness in the AI data center market,” says Jaeshin Lee, Vice President and Head of AI Business Development at SK Telecom.
“As AI infrastructure expands globally, CPUs play a critical role in coordinating workloads across accelerators, memory and networking,” said Eddie Ramirez, vice president of go-to-market, Cloud AI Business Unit at Arm. “Arm AGI CPU, built on Arm Neoverse CSS V3, was designed to deliver the performance and efficiency required for large-scale AI deployments. Together with Rebellions and SK Telecom, we’re enabling scalable infrastructure for sovereign AI and telecommunications markets.”


