Reflection AI unveils Beam, a 501B open-weight MoE built to take on China's open models · 8 dea
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All news →Reflection AI unveils Beam, a 501B open-weight MoE built to take on China's open models
Reflection AI announced Beam, a sparse mixture-of-experts model with 501B total and 23B active parameters, pretrained on 23.8T tokens and then reinforcement-trained with 100M+ rollouts on 10,500 Nvidia GB300 GPUs. The company reports 80.9 on SWE-Bench Verified
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