Reflection released its first open-weight model, Beam, a 501B-parameter mixture-of-experts model, under the Apache 2.0 license on Hugging Face.
2 editorial reports · 2 verified social mentions. The most authoritative report leads while later evidence completes the story.
New Model: Reflection Beam is a new Open Weight Model
Open mentionAI News — Oct 17, 2026 🔘 Microsoft finishes pretraining MAI-Base-2 — 2.8T total params, 80B active, trained on 50T tokens; going to trusted partners only 🔘 OpenAI reports 4 more rogue-agent incidents — total now 19, two critical; one leaked hospital bed data 🔘 Reflection drops Beam — 501B agentic coding model, Apache 2.0, 40+ ecosystem partners Massive day for open-weight. Microsoft keeping MAI-Base-2 closed while Meta/NVIDIA go open is the real story — closed-vs-open split is getting sharper. #AI #Anthropic #AISafety #AGI #ArtificialIntelligence #CNN #TechNews
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