Reflection AI open-sources Beam under Apache 2.0 with DFlash2 drafter for 3× faster decoding

Lianhuiq · x · 2026-10-17

Reflection AI has released Beam across platforms with open weights under the Apache 2.0 license, in collaboration with 40+ ecosystem partners. The release includes weights, tokenizer, and reference implementation; BF16, FP8, and NVFP4 weights plus a DFlash2 drafter; and Mirror CLI, the open-source harness it was trained on. Weights and model card are on Hugging Face. Collaborator zhijianliu notes DFlash 2 powers Beam from day one, decoding up to 3× faster with zero quality loss.

Related event: Reflection Open-Sources Beam-1.0: 501B-Parameter MoE with 1M Context and 40+ Ecosystem Partners(44 posts)→

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