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Reflection AI has released the open weights and post-training recipes for Beam, its 501B MoE coding model, under Apache 2.0. Google Cloud, AWS, vLLM, and Ollama delivered day-0 optimizations including DFlash2 speculative decoding, tiered KV caches, and NVFP4 checkpoints.
Microsoft's Oct. 12 announcement says Maia 200 already serves Copilot workloads and that the Maia family will scale to multi-gigawatt deployments from 2027, when Maia 300 enters production. What is shipped, what is roadmap, and how to read the efficiency claims.