Reflection AI open-sources 501B Beam model for agentic coding

A 501B open-weight MoE for agentic coding expands what open models can do against closed frontier coding agents.

Beam-1.0-501B-A23B is an open-weight Mixture-of-Experts model with 501B total and 23B active parameters, released with post-training recipes and available on Hugging Face and AWS. It is aimed at agentic coding tasks.

Name

Beam-1.0-501B-A23B

Params

501B total, 23B active (MoE)

Read it at Hugging Face Blog → 💬 2 on HN

Coverage: 6 sources, in order

1. 16 Oct 00:00 Hugging Face Blog Read the article →
2. 16 Oct 13:23 Reddit Read the article →
3. 16 Oct 15:23 AWS Machine Learning Read the article →
4. 16 Oct 15:23 Amazon Web Services (AWS) Read the article →
5. 16 Oct 22:52 SiliconANGLE Read the article →
6. 16 Oct 23:00 Hugging Face Read the article →

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