
Anthropic engineers detail how Claude’s ‘brain’ and ‘hands’ are separated for safety and performance
Katelyn Lesse and Angela Jiang explain the managed-agent architecture behind Opus 5.5 and the company’s platform strategy
Anthropic’s engineering and product leads have described how the company ships its flagship Claude models by separating the model’s reasoning, the ‘brain’, from the execution environment, the ‘hands’, a design choice they say improves both security and latency. The insights come from a podcast interview with Katelyn Lesse and Angela Jiang, heads of Engineering and Product respectively, as Anthropic prepares for its expected IPO.