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Hugging Face Blog·· 15 hours agoFeaturedAI Score80

Reflection releases Beam, a 501B open MoE model with 1M context under Apache 2.0

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

AI summary

Reflection released Beam, its first model, a 501B-parameter mixture-of-experts LLM with 23B active parameters per token.

Why it matters

The post gives the architecture, checkpoint formats and serving recipes, so readers can judge what it takes to run a 501B open model themselves.

Source: Hugging Face Blog · huggingface.co