Reflection releases open-source MoE model Beam 501B, with Hugging Face deployment and fine-tuning guide

Reflection released Beam, an open-source MoE model with 501B total parameters and 23B active per token. It supports a 1M-token context under the Apache 2.0 license.

Why it matters: Hugging Face's guide lays out per-precision deployment and fine-tuning recipes, listing model weights, long-context caching and the hardware each needs.