NVIDIA-backed Reflection AI has officially released its first open-weight AI model, Beam. The company stated that Beam's performance in advanced reasoning benchmarks is comparable to China's leading open model, GLM-5.2, but with a 3-4x reduction in inference computational cost. Beam is a model with 501 billion parameters, of which 23 billion are active parameters, pre-trained on 23.8 trillion tokens of data, and has a context window of 1 million tokens. Reflection AI has raised approximately $4.7 billion from investors including NVIDIA and Sequoia Capital, with the company valued at $25 billion. Beam's weights and full technical details are expected to be released this month.