Reflection AI releases open-weight 501B model Beam for agentic coding
Reflection AI released Apache 2.0-licensed weights for Beam, a 501B-parameter model trained with reinforcement learning to penalize unnecessary tokens. The model is now available for deployment on AWS and CoreWeave platforms.
Read the full story at AWS Machine Learning Blog ↗
Timeline · 4 reports
- 2026-10-16 20:18 · CoreWeave Blog
From training to serving: Reflection’s Beam on CoreWeave - 2026-10-16 16:40 · Techmeme
Reflection AI releases Apache 2.0-licensed weights for Beam, a 501B-parameter model, trained with RL that penalized unnecessary tokens - 2026-10-16 15:23 · AWS Machine Learning Blog
Introducing Reflection Beam: an open-weight model for agentic coding on AWS - 2026-10-16 00:00 · Hugging Face Blog
Welcome Beam: a 501B open model you can own, customize, and scale