Review Beam 1.0 501B A23B on key metrics including price, context length, throughput, and model features.
AuthorReflection
Context Length1.0M
Supports Tools
Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active parameters per token, and a 1M-token context window.