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Reflection debuts Beam, an open-weight AI model to rival Chinese models at lower compute cost
Reflection AI announced Beam, a 501‑billion‑parameter open‑weight model that claims to match Chinese rivals like Z.ai’s GLM‑5.2 on advanced reasoning benchmarks while using 3‑4× less inference compute. Beam, trained on 23.8 trillion tokens with a 1‑million‑token context window, is positioned as a “workhorse” for enterprises, governments, and developers. The Brooklyn‑based startup, backed by Nvidia, Sequoia, and Lightspeed, aims to enable “AI factories” that let institutions train custom models on proprietary data.