AILatent Spaceabout 2 hours ago
Reflection Launches Beam Open Model
12 min read
Reflection announced Beam, a 501B-parameter text-only model trained from scratch, on October 3, 2026. The team cites 23.8T pretraining tokens and claims 80.9 on SWE-bench Verified. Full weights under Apache 2.0 are due this month, with training utilizing 10K GB300s and over 100M rollouts.
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