Reflection releases Beam, a 501B open-weight coding model
Read original source →venturebeat.com
Beam is a sparse MoE with 501B total and 23B active parameters, Apache 2.0 weights, and a 1M-token context window, shipped with BF16, FP8 and NVFP4 variants plus a DFlash2 drafter across 40+ partners. It scores 30 on the Artificial Analysis Intelligence Index, #2 among US open-weight models.
How this story unfolded
7 days · 5 reports · 8 community posts · 13 of 14 shown
- Oct 16
Welcome Beam: a 501B open model you can own, customize, and scalehuggingface.co
Reflection's Beam aims to undercut Chinese open models with fewer tokens, not cheaper tokensventurebeat.com
Introducing Reflection Beam: an open-weight model for agentic coding on AWSaws.amazon.com
Reflection AI's Beam now available on AI Gateway for freevercel.com
- Oct 17
- Oct 23
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