https://www.live-feeds.com/feed/reflection-debuts-beam-an-open-weight-ai-model-to-rival-chinese-models-at-lower-compute-costContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/reflection-debuts-beam-an-open-weight-ai-model-to-rival-chinese-models-at-lower-compute-costhttps://www.live-feeds.com/feed/reflection-debuts-beam-an-open-weight-ai-model-to-rival-chinese-models-at-lower-compute-cost#u110435Thu, 08 Oct 2026 10:45:24 +0000Startup Reflection AI has launched Beam, a 501 billion parameter open-weight artificial intelligence model designed to challenge leading Chinese open models while operating at a lower compute cost. Built as a sparse Mixture-of-Experts architecture with 23 billion active parameters, Beam targets coding, reasoning, and agentic workloads. The model was trained on 23.8 trillion tokens and utilized a high-compute reinforcement learning run generating over 100 million rollouts across 10,500 Nvidia GB300 GPUs during a four-week training period. Reflection is aiming Beam and future models at enterpris