Introducing Reflection Beam: an open-weight model for agentic coding on AWS
Reflection AI released its open-weight model Beam, built for agent coding and long-horizon tasks, with 501B total parameters, 23B activated parameters, and an effective context length of 1 million tokens. The weights are published on Hugging Face under the Apache 2.0 license, with BF16, FP8, and NVFP4 checkpoints available.
Why it matters: The original article details three deployment paths for Beam on AWS, along with instance selection and parameter VRAM considerations, insights transferable to planning deployments of similar open-weight large models.