Reflection unveils Beam, its first open-weight AI model for coding and reasoning

TechCrunch reports that Reflection has unveiled Beam, a text-only model with 501 billion total parameters. Reflection claims Beam scores comparably to GLM-5.2 on advanced reasoning benchmarks while using 3–4 times less inference compute; TechCrunch says the performance claims have not been independently verified. Reflection says early access is available to select users and plans to release the weights under an Apache 2.0 license in October 2026.