ReflectionAI launches Beam, a 500B open-weight reasoning model

ReflectionAI co-founder and CEO Misha Laskin appeared on the No Priors podcast to discuss the launch of Beam, a 500 billion parameter open-weight model designed for reasoning tasks. The conversation covers the pre-training and reinforcement learning techniques used to build the model's reasoning efficiency, and Laskin's thesis that enterprises will increasingly shift from renting AI compute to owning models outright.

Laskin also addresses the competitive landscape with Chinese open-source models, arguing that competition accelerates innovation. He discusses safety considerations specific to open models, monetization strategies for open-weight systems, and how frontier-level open models could accelerate scientific discovery by making powerful tools broadly accessible.