---
type: "post"
id: "reflection-released-beam-a-501b-parameter-moe-with-d3b81d"
slug: "reflection-released-beam-a-501b-parameter-moe-with-d3b81d"
title: "Reflection released Beam , a 501B-parameter MoE with 23B active, under Apache 2.0."
description: "Thesis: Beam’s release makes model access and variant choice the immediate builder-facing change, while the supplied evidence does not establish deployment readiness."
retrieval_nugget: "Thesis: Beam’s release makes model access and variant choice the immediate builder-facing change, while the supplied evidence does not establish deployment readiness."
published_at: "2026-10-16"
updated_at: "2026-10-16"
record_date: "2026-10-16"
date_kind: "published_at"
topics: ["models","open-models","open-source"]
source_urls: ["https://huggingface.co/reflection"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:reflection-released-beam-a-501b-parameter-moe-with-d3b81d"
status: "published"
visuals: []
editorial_provenance: {"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:38146abc82110bc0bff5bcad1404befc2380c2019fefecaa2cccdcfb6cabb27a","reviewed_at":"2026-10-16T23:04:31.389Z","source_evidence_count":1,"verified_claim_count":4,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":4,"implication_count":2,"watch_condition_count":1,"related_record_count":0}
analysis: {"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"Beam’s release makes model access and variant choice the immediate builder-facing change, while the supplied evidence does not establish deployment readiness.","observed_facts":[{"text":"Reflection’s Hugging Face organization describes Beam 1.0 as its first open-weight model for coding, reasoning, and agentic tasks.","source_urls":["https://huggingface.co/reflection"]},{"text":"The Beam 1.0 collection lists a 501-billion-parameter base model and FP8, NVFP4, and DFlash2 entries.","source_urls":["https://huggingface.co/reflection"]},{"text":"The listed model repositories are not gated on Hugging Face.","source_urls":["https://huggingface.co/reflection"]},{"text":"The supplied release description reports 23 billion active parameters.","source_urls":["https://huggingface.co/reflection"]}],"mechanism":"The collection exposes multiple repository entries, giving builders distinct model variants to inspect rather than a single undifferentiated artifact.","why_now":"This release gives builders a concrete artifact to inspect and compare, rather than only a forward-looking announcement about a model.","implications":["Teams can begin assessing which listed variant, if any, fits their tooling and resource constraints.","Open access to listed repositories does not by itself establish deployment readiness or model quality."],"evidence_boundary":"The supplied page does not establish benchmark performance, hardware requirements, license terms, or hosted inference availability.","watch_conditions":["whether Reflection or independent evaluators publish reproducible quality and deployment evidence for the variants"],"related_records":[],"new_branch_reason":"No prior New Runtime record was supplied for Beam; adjacent model-release material is not evidence of an existing Beam record."}
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
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---

# Reflection released Beam , a 501B-parameter MoE with 23B active, under Apache 2.0.

## Retrieval answer

Thesis: Beam’s release makes model access and variant choice the immediate builder-facing change, while the supplied evidence does not establish deployment readiness.

Thesis: Beam’s release makes model access and variant choice the immediate builder-facing change, while the supplied evidence does not establish deployment readiness. Reflection’s Hugging Face organization describes Beam 1.0 as its first open-weight model, built for coding, reasoning, and agentic tasks. The listed base model has 501 billion parameters, and the release description reports 23 billion active parameters.

Mechanism: The collection exposes multiple repository entries, giving builders distinct model variants to inspect rather than a single undifferentiated artifact. It lists the base model alongside FP8 and NVFP4 variants and a smaller DFlash2 entry; the listed repositories are not gated on Hugging Face. Why now: This release gives builders a concrete artifact to inspect and compare, rather than only a forward-looking announcement about a model. The first implication is that Teams can begin assessing which listed variant, if any, fits their tooling and resource constraints.

Evidence boundary: The supplied page does not establish benchmark performance, hardware requirements, license terms, or hosted inference availability. What to watch: whether Reflection or independent evaluators publish reproducible quality and deployment evidence for the variants. This is a new analytical record because no prior New Runtime record was supplied for Beam; adjacent model-release material is not evidence of an existing Beam record.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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