Meta and Reflection Ship Open Weights; Microsoft Exits Nscale's Grid-Stalled UK Site — October 19, 2026
AI Daily BriefingShow Notes
Meta's 816B Muse Spark Open and Reflection's 501B Beam both landed as open weights on Hugging Face last week, with very different memory bills. Microsoft walked away from Nscale's Loughton data center as its grid connection slips to the 2030s, and Anthropic is pitching a federal safety bill that would let only Commerce halt a model release.
In this episode: 1. Welcome Muse Spark Open: open-weight frontier multimodal mixture-of-experts model from Meta — Pedro Cuenca, ben burtenshaw, Guarin Flück, Quentin Gallouédec, Alvaro Bartolome https://huggingface.co/blog/meta-muse-spark-open 2. Welcome Beam: a 501B open model you can own, customize, and scale — ben burtenshaw, Pedro Cuenca https://huggingface.co/blog/reflection-beam 3. Microsoft Reportedly Exits Nscale's Loughton AI Data Center Deal in the UK as Grid Connection Lags — Xenospectrum https://xenospectrum.com/en/microsoft-nscale-loughton-grid-delay/ 4. Anthropic’s proposed AI safety bill only kicks in if 50 deaths or $1 billion in damages are on the line — Jowi Morales https://www.yahoo.com/news/politics/articles/anthropic-proposed-ai-safety-bill-112500288.html
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