Amazon· 2h agoIntroducing Reflection Beam: an open-weight model for agentic coding on AWS
Deploy Reflection AI's open-weight coding model on AWS
Developer tool
Reflection AI introduced Beam, an open-weight sparse mixture-of-experts model for agentic coding and long-horizon tasks, with 501 billion total parameters and 23 billion active parameters.
The model is available in Amazon SageMaker JumpStart in two US East regions, and its weights are released on 
Hugging Face under the Apache 2.0 license in BF16, FP8, and NVFP4 checkpoint variants.
The post provides deployment guidance for SageMaker JumpStart real-time endpoints and SageMaker HyperPod Inference.
