Reflection debuts Beam, an open-weight AI model to rival Chinese models at lower compute cost

Beam is a mixture-of-experts model: it holds 501 billion parameters but switches on only 23 billion for any given piece of text, which cuts the computing needed per answer. Reflection says the open-weight model, meaning companies can download and run it themselves, matches a top Chinese model on reasoning tests while using three to four times less inference compute when it ships this month.

Summary written with AI by HowTechMoves, based on reporting by TechCrunch.