Anthropic boots Claude on AMD MI355X in ~3 days, fueling claims the CUDA moat is eroding
udmrzn · x · 2026-11-12
Marcelo Lima argues the "Nvidia CUDA moat is gone": Anthropic treats all compute as fungible, and Claude Mythos Preview reached useful prompt-processing performance on AMD MI355X GPUs in roughly 3 days — versus 6-12 months for traditional silicon onboarding. Accompanying charts show Anthropic running a unified fungible compute pool spanning AWS Trainium, Google TPUs, NVIDIA and AMD GPUs for research, development, customer demand, and internal Claude use. Real-world cost/perf comparisons remain unverified.
Related event: Anthropic: Claude Ported Itself to AMD MI355X in 3 Days, Nearly Hands-Free(6 posts)→
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