MAI-Base-2

Model ● Covered in 1 story + Follow

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Microsoft reveals cutting-edge MAI-Base-2 model with 2T parameters SiliconANGLE · 4 hours ago · 43

Timeline

Month Quarter Year

2026

Liquid AI releases the open-weight LFM2.5-24B-A2B reasoning model for on-device agent tool-calling with an expanded 131K context window Model release

17 Oct Microsoft reveals cutting-edge MAI-Base-2 model with 2T parameters

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Microsoft develops this model · 1 source

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TLDRocket 17 October 2026

Microsoft used today’s announcement to zoom in on what matters in scaling: not just raw capability, but the plumbing behind it. The company revealed MAI-Base-2, a 2T-parameter base model designed to be converted into full LLMs with additional training. Per Microsoft, only 80B parameters activate per prompt, and the training run ate 50T tokens over 38 days using 16,000 Nvidia GB200 GPUs. The headline claim: MAI-Base-2 is up to 12× more hardware-efficient than its predecessors, a metric that will matter to anyone trying to keep inference costs from swallowing margin.

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