reflection/Beam-1.0-501B-A23B
text-generation model by reflection
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From the publisher
Model card & documentation
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Hugging Face | GitHub | Launch Blog | Documentation | Technical Report (coming) License: Apache 2.0 | Authors: Reflection Beam is an open model built by Reflection. Beam takes text as input and generates text as output. This release includes the instruction-tuned model in BF16, FP8, and NVFP4 numerics. Beam uses a sparse mixture-of-experts (MoE) architecture with 501B total parameters and 23B active parameters. It supports a context window of 1M tokens and was developed predominantly for English. Beam models are designed to deliver strong performance for areas such as agentic tool use, coding and general reasoning with an emphasis on token efficient usage. Property Beam 501B A23B MoE Total Parameters 501.3B Active Parameters 23.4B Layers 52: 3 dense + 49 MoE Attention Gated GQA + Sliding Window Attention Context Length 1M Vocabulary Size 152k tokens Expert Count 256 Supported Modalities Text Chat Template Modified Harmony format Numerics BF16, FP8,…
Read the full model card ↗ · Preview checked 2026-10-30T12:53:25.693Z
Inside the original model card — Document outline
- Primary capabilities
- Model Overview
- Benchmark Results
- Evaluating Beam
- Model Data
- Safety & Alignment
- Usage
- Reporting
- Citation
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Documentation belongs to its respective authors. Reported project/model license: apache-2.0. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.
Model overview
reflection/Beam-1.0-501B-A23B is a text-generation model repository published by reflection on Hugging Face. A library was not reported.
This page summarizes Hub metadata. For intended use, training data, evaluation results and limitations, consult the original model card.
Model facts
- Task
- text-generation
- Library
- Not reported
- Recent downloads (30 days)
- 7,231
- Cumulative likes
- 285
- Hugging Face trending score
- 66
- Reported safetensors parameters
- 501,267,612,352
- Architecture
- BeamForCausalLM
- License
- apache-2.0
- Access
- Not gated by Hugging Face
- Created
- 2026-10-07T19:52:01.000Z
- Last modified
- 2026-10-27T20:35:55.000Z
Compatibility and lineage
Reported languages: en
Base-model lineage was not included.
Parameter count is not a RAM/VRAM requirement. Check precision, quantization, context length and runtime compatibility in the model card; no hardware or API-cost claim is inferred here.
Use and evaluate
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Source and freshness
Source: Hugging Face Hub. Metadata observed 2026-10-29T06:47:43.046Z. Daily imports are snapshots, not real-time monitoring.
Popularity and source listings do not establish security, suitability, licensing rights or benchmark performance.