Reflection released the weights for Beam, its first open-weight model, on Hugging Face under an Apache 2.0 license on October 16, 2026, and Baseten brought the 501B-parameter mixture-of-experts model to its platform with day-0 support through Model APIs and Dedicated Inference. Reflection first introduced Beam on October 5, 2026, while the model was undergoing final red-teaming and evaluations, with early access limited to a waitlist and weights promised later in the month. The company said it…