ReflectionAI launches Beam, a 500B-parameter open-weight reasoning model
No Priors · rss · 2026-10-09
ReflectionAI co-founder and CEO Misha Laskin joins No Priors to discuss Beam, the company's 500B-parameter open-weight reasoning model. Key points:
- Beam's reasoning efficiency comes from combining pre-training with reinforcement learning
- Enterprise compute is shifting from renting to owning intelligence; open-weight models can be monetized
- Laskin predicts open models will capture the majority of global token demand
- Discussion of China's open-source model ecosystem and whether Chinese models will stay open
- Safety considerations around open models and access to powerful tools
- How frontier open models may accelerate scientific discovery
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