1 model
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Reasoning Tools Open weights 1242.0

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...

reflection/beam-1.0-501b-a23b 2026-10-05 1.04858M context $0.25/M input $1/M output
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