Anthropic roadshow: Claude ported its stack to AMD GPUs in 3 days with almost no human help
AccBalanced · x · 2026-11-12
From Anthropic's roadshow video: bringing up a new chip platform used to take dozens of engineers months. This year, working with AMD GPUs for the first time, the internal system Mythos got Claude running on AMD in just 3 days with basically no human intervention — Claude ported or wrote nearly 100% of the kernels.
Quoting the clip, @ericvishria draws a strategic implication: if your hardware moat is really software, it's no longer a moat. Genuine hardware moats come in two flavors — roofline-level HW capability (which everyone can now reach much faster) and supply chain (wafers, parts, manufacturing capacity at scale). Both matter.
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