Beam is an open-source large language model from Reflection AI with 501 billion parameters, which SiliconANGLE reported debuted on October 5, 2026. The article says its performance approaches that of Alibaba's Qwen 3.8 Max, and notes that many of the most advanced open-source models have been built by Chinese companies.
That performance claim comes from press coverage of the release, and should be checked against independent evaluations before any deployment decision.