Samsung and SK join OpenAI’s Stargate initiative to advance global AI infrastructure

Source: OpenAI Date: 2025-10-01 URL: https://openai.com/index/samsung-and-sk-join-stargate

Summary

Title-only: Samsung and SK Group (SK Telecom, SK Hynix) join the Stargate initiative — contributing hardware manufacturing capability and investment to OpenAI’s global AI infrastructure program. Samsung brings HBM memory chips (critical for AI accelerators) and display manufacturing; SK Hynix is the leading HBM supplier for NVIDIA’s H100/H200 GPUs. October 2025 positions this as Stargate expanding from US infrastructure into the Korean semiconductor supply chain.

Implications

The semiconductor supply chain thread. Samsung and SK Hynix joining Stargate is strategically crucial: the AI compute bottleneck is memory bandwidth (HBM), not just GPU compute, and these two companies dominate HBM production. OpenAI securing relationships with HBM suppliers through Stargate is supply chain insurance against the allocation constraints that limited AI training capacity through 2023-2024.

Korean tech ecosystem integration. Samsung and SK joining Stargate gives Stargate’s infrastructure investments a Korean supply chain dimension — and positions Korea as a strategic partner in the US-aligned AI infrastructure buildout, distinct from China’s parallel AI ecosystem. This matters for US export control policy: Korean semiconductor companies are critical to US AI competitive advantage, and their Stargate participation is a signal of where Korean tech companies are aligning.