reflection-ai

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

Reflection AI has announced Beam, an open-weight, text-only mixture-of-experts model the Brooklyn startup says matches top Chinese open models on advanced reasoning tests while using substantially less compute. Beam is a 501-billion-parameter model with 23 billion active parameters, trained on 23.8 trillion tokens and offering a 1 million token context window; Reflection plans to publish weights and technical details this month.