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Reflection AI's Beam: Why 23B Active Parameters Matter More Than 501B

Reflection AI just introduced Beam , its first open-weight model. The headline number is 501 billion parameters. The number builders should actually care about is 23 billion . What was announced (Oct 5, 2026) Architecture: a sparse Mixture-of-Experts (MoE) model with 501B total parameters and about…

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  1. 2026-10-06 03:34 · DEV Community — Machine Learning
    Reflection AI's Beam: Why 23B Active Parameters Matter More Than 501B

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