Reflection launched Beam, an open weight sparse mixture of experts model that has 501 billion total parameters. The model is designed to compete with open models from China. The company said:
"Beam advances the Western open-weight frontier and is competitive with larger open models like GLM 5.2 and approaching Qwen 3.8-Max on coding and agentic tasks. Where frontier open models like Kimi K3 remain ahead on raw capability, Beam's advantage is efficiency at inference time."
Reflection said Beam will be in early access soon.

