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Open Models · first seen 17 October 2026, 23:48 UTC

Reflection releases open-weight Beam 501B reasoning model

One of the largest open-weight reasoning models, advancing efficient inference with fewer tokens.

Reflection released Beam, an open-weight 501B-parameter AI model designed to reason effectively using fewer tokens.

ReflectionOpenOpen weights
Name
Beam
Params
501B
Domain
general

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Coverage: 2 sources, in order

  1. XenoSpectrum Read the article →
  2. tech-insider.org Read the article →

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