Unverified50% confidenceReleaseExact time

The Reflection team released an open-weight large language model named Beam, with a parameter scale of 501 billion (501B).

1

Sources

50%

Confidence

Medium-term (~90 days)

Relevance

10/5/2026

First Seen

Valid until: 1/3/2027

Sources

Reflection Launches Beam: A 501B Parameter Open-Weight Large Language Model

Related Entities

Reflectioncompany Beammodel

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