Samsung Secures Exclusive Deal to Supply HBM4 Memory for OpenAI's In-House 'Titan' Chip

Samsung Electronics has secured an exclusive deal to supply next-generation HBM4 memory chips for OpenAI's first in-house AI processor, internally codenamed "Titan." The news was first reported by Korea's Hankyung and has since been confirmed by multiple industry sources.

The Titan chip is being developed in partnership with Broadcom, and Samsung is set to begin deliveries in the second half of 2026. The deal marks a turning point in the AI hardware landscape: OpenAI is no longer just a software company — it is moving into silicon in the same league as Google and Microsoft.

HBM4 is the next generation of high-bandwidth memory, engineered to handle the massive data throughput required by large language models. According to TrendForce, Samsung has already allocated more than 50% of production capacity at its Pyeongtaek fab to HBM4 base dies.

For Samsung, this is a meaningful comeback. The company has struggled to gain market share in HBM against SK Hynix, and an exclusive partnership with OpenAI provides strategic leverage precisely as the next wave of AI infrastructure takes shape.

Analysts expect the Titan chip to give OpenAI significantly lower costs and higher throughput compared to buying standard Nvidia GPUs — and potentially reduce OpenAI's costly dependence on Nvidia, which currently runs into billions of dollars per quarter.