Derek Rosenzweig

I'm the founder of Runtime Labs, where I build Óra, a platform for search, planning, and event discovery through natural language. My work focuses on anchoring language models in time and designing interfaces for long-horizon conversation and scheduling.

My background is in neuroscience research, where I came to view time as a bridge between language and world models—a core primitive that allows high-level intentions expressed in natural language to become actionable in the physical world.

I began exploring how timestamps and event structure could be integrated into reasoning models, which led to early scheduling and planning applications. This work ultimately evolved into Óra and the founding of Runtime Labs as a research and product company focused on building new interaction paradigms for coordinating activity with language models.