【情报】Reflection 首发开源权重模型 Beam，叫板国产开源模型

Beam is a 501-billion-parameter model with 23 billion active parameters. It was pretrained on 23.8 trillion tokens and has a 1 million token context window. To compare, Z.ai’s GLM-5.2 has roughly 744 billion total parameters with 40 billion active.

Reflection’s performance claims haven’t been independently verified, but on advanced reasoning benchmarks, the company says Beam scores on par with Z.ai’s GLM-5.2 and outperforms today’s leading Western open models while using “3-4x less inference compute.” Reflection calls it a “workhorse model” for enterprises, the public sector, and developers.

号称对标几个月前的5.2，都不一定真能对标，权重也没小多少，目前来看没啥意思，3-4x的forward flops降低又不是推理成本真的降低这么多倍