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AI Coding Agents

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Monday, 5 October 2026

Reflection AI Introduces Beam: A 501B Open-Weight MoE Model With 23B Active Parameters for Coding and Agentic Workloads

MarkTechPost 2 weeks ago 42 ● 7 sources

Reflection AI introduced Beam, its first open-weight sparse Mixture-of-Experts model built for coding and agentic work. Beam has 501B total parameters with 23B active per token. Self-hosting is not available yet as the model is in final red-teaming, with early access via a waitlist on Reflection’s platform.

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