Cerebras CEO explains the 3 supply-chain bottlenecks gripping AI chips: HBM, CoWoS, TSMC 3nm

rohanpaul_ai · x · 2026-08-26

Andrew Feldman, co-founder and CEO of Cerebras, explained on the MAD Podcast with Matt Turck that the AI accelerator industry is largely constrained by three supply-chain bottlenecks: HBM memory, CoWoS packaging capacity, and access to TSMC's 3nm manufacturing.

Cerebras sidesteps all three by architectural choice: its chips rely on neither HBM nor CoWoS, and are manufactured on a 5nm process rather than 3nm. In an industry where memory, advanced packaging, and leading-edge fab capacity can directly cap shipments, this gives Cerebras a materially different supply profile from mainstream GPU systems.

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