reflectionmodel

Reflection: Beam 1.0 501B A23B

Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active parameters per token, and a...

text code reasoning agents cheap long-context

Best for

Code GenerationDebuggingCode ReviewComplex Reasoning

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Context Window

1049K tokens ≈ 2.3K pages

Input Cost

$0.25/1M

Output Cost

$1.00/1M

Latency p50

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Pricing Details

Standard Pricing

Input (per 1M tokens)

$0.25

Output (per 1M tokens)

$1.00

Run it locally

Local run command

# Refer to provider docs:

Presumptive Specs:

Typical GPU

12–24 GB VRAM

System RAM

16+ GB

Disk

20+ GB free

Runtime

Docker / local runtime

Hallucination Score™ (est.)

Community reliability estimate · not official

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Not yet rated

About this score: Community-estimated based on user reports and publicly available benchmark data (e.g. TruthfulQA). This is not an official score from the model provider. Scores may be inaccurate — always verify with the official leaderboard before making production decisions.

Price HistoryPro

Input & output cost per 1M tokens over time

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Provider

reflection

Usage & Examples

Learn how to use Reflection: Beam 1.0 501B A23B

✓Complex reasoning and analysis

✓Customer support automation

✓Content generation and editing

✓Code review and debugging

✓Research summarization

💡 Tip: Start with the sample prompts above to see how Reflection: Beam 1.0 501B A23B works best.

Community Prompts

Proven prompts shared by the community for this model

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