Reflection releases open-weight Beam model to compete with Chinese open models
Reflection debuts Beam, an open-weight AI model to rival Chinese models at lower compute cost
- Who
- Reflection AI
- When
What happened
Reflection AI officially released its first frontier open-weight model, Beam, saying it performs comparably to leading Chinese open models on advanced reasoning benchmarks with 3–4 times less inference compute. Beam is a 501-billion-parameter, 23-billion-active-parameter text model, pretrained on 23.8 trillion tokens with a 1-million-token context window. The company says it matches Z.ai's GLM-5.2 and exceeds current leading Western open models.
Reported by 3 sources
AgentsReasoningOpen sourceData and trainingModel releases#Model release#Open-source ecosystem#Reasoning#Agent#Data and training
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