Reflection AI drops Beam, a 501B coding powerhouse
Reflection AI just introduced Beam, an open-weight 501B MoE model with 23B active parameters tailored for coding and agentic workflows. Trained across 10.5K Nvidia GB300 GPUs, it matches frontier open models like GLM 5.2 on key benchmarks while using 3 to 4 times less inference compute. Weights drop later this month.