Once Claude can measure something, it can make it faster

Claude.ai and the Claude desktop app recently underwent a two-week sprint, resulting in a 3x speed improvement for the core user experience. This optimization focused on four key user journeys, which account for 95% of user activity. Specific improvements include reducing the time to a typeable page on claude.ai from 3.1 seconds to 0.55, starting a new Claude Code session from 0.8 seconds to 0.3, and loading a Claude Cowork cloud session from 2.6 seconds to 0.73. These enhancements are estimated to save tens of thousands of user-hours daily.