March 2026 — Samsung was reported to have secured an exclusive deal to supply HBM4 memory for OpenAI’s first custom AI chip, internally known as Titan, with shipments planned for the second half of 2026.
What happened
Multiple industry outlets reported that Samsung agreed to supply up to roughly 800 million gigabits of 12-layer HBM4 memory for OpenAI’s Titan processor. Samsung separately showcased its next-generation HBM4E memory, aimed at Nvidia’s Vera Rubin platform, at Nvidia’s GTC 2026 conference in March.
Why it matters
Because neither company has issued a joint press release confirming exact volumes or terms, the specifics should be treated as reported rather than officially confirmed; the broader trend — OpenAI building its own silicon supply chain alongside its Broadcom and Nvidia partnerships — is well corroborated across sources.
Security and infrastructure impact
OpenAI’s parallel hardware partnerships with Broadcom, Samsung and Nvidia show a deliberate strategy of diversifying AI chip supply across multiple vendors, a resilience approach that mirrors what physical-security integrators increasingly recommend for critical camera, sensor and access-control hardware supply chains.
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