Mythos

Anthropic co-founder Tom Brown says the company has escaped single-vendor dependence on Nvidia via a multi-chip strategy, training and serving Claude across all four major chip families as one interchangeable compute pool. Its frontier model Mythos reportedly wrote or ported nearly 100 percent of the kernels for an AMD GPU migration itself in just three days, versus the usual six to twelve months. The claim directly challenges Nvidia's CUDA moat, and Anthropic plans to deploy up to two gigawatts of AMD Instinct MI455X GPUs.