Anthropic says Claude Mythos migrated Claude to AMD MI355X GPUs and optimized its performance in about three days, with minimal human assistance. The operation reportedly began in July 2026, after Claude was connected to the AMD hardware, and was carried out largely autonomously. The MI355X is based on the CDNA 4 architecture, features 288 GB of HBM3E memory and delivers up to 10 PFLOPS of peak performance. Anthropic unveiled Claude Mythos 5.2 on November 9, 2026, a model restricted to vetted programs and priced at $8 per million input tokens and $40 per million output tokens.
Source: Read the original article


