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Welcome Beam: a 501B open model you can own, customize, and scale

L4 · DeveloperModels & ReleasesHugging Face Blog· 10/16/2026

Provides developers with a frontier-scale open model for custom deployment and fine-tuning on their own infrastructure.

AI Summary

Reflection releases Beam, a 501B parameter open-source MoE model optimized for coding and agentic use cases with 1M context and Apache 2.0 license.

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