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Beam 1.0

Reflection

Hugging Face | GitHub | Launch Blog | Documentation | Technical Report (coming) 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. - **Token-efficient reasoning:** Reaches comparable solution quality to leading open models using approximately 3x fewer inference-time reasoning tokens.

Text generationOpen weights

Input Text→ Output Text

$0.4 / M input tokensArtificial Analysis · Beam 1.0

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Adjust monthly token usage to compare estimated API costs.

Monthly input tokens 10 MMonthly output tokens 2 M1 M = 1 million tokens · USD
Compares base text-token rates within the same channel

Uses collected, comparable USD-per-million-token rates. Snapshots exclude cache discounts, tiers, extra reasoning output and taxes. Check current source prices.

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Beam 1.0

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