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Reflection AI launched Beam, its first open-weight 501B/23B mixture-of-experts AI language model for coding and agentic workloads Open source release
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TLDRocket
6 October 2026
The biggest AI throughline today wasn’t model size—it was speed to judgment, and the machinery behind it. Musubi is betting that content moderation can move from slow, policy-driven workflows to decision models that apply plain-English rules directly to text. Its PolicyLM-1.7B is designed to produce moderation calls in under 50 milliseconds, and, crucially, to accept policy updates without requiring retraining. For platform teams, that means faster iteration on labels and less time waiting for “new guidance” to make it into the system.
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