Anthropic will deploy up to 2GW of AMD AI infrastructure for training and running inference on Claude. AMD and Anthropic announced the deal on July 22, with the first 1GW beginning deployment in the first half of 2027. Anthropic's previously disclosed semiconductor infrastructure consisted of three platforms—AWS Trainium, Google TPU, and NVIDIA GPU—but this announcement adds AMD as a fourth. Anthropic already uses the current-generation Instinct MI355X, and the collaboration includes deployment of next-generation hardware, joint software development, and an investment of up to $5 billion from AMD. The first 1GW will use the Helios rack-scale platform, which houses the MI455X from the Instinct MI450 series. Each Helios rack houses 72 MI455X units with a combined 31TB of HBM4. Compute performance is rated at up to 2.9 exaFLOPS for FP4 and up to 1.4 exaFLOPS for FP8. For any amount beyond the initial 1GW, neither whether it will be deployed nor when has been disclosed. The scale, use cases, and locations of the existing MI355X deployment also remain undisclosed.