Small language models are running on laptops and phones, matching GPT-4-class performance from 2023. Here's the technical story of how they got so good, and what it means.
A detailed technical explainer of the Mixture of Experts architecture — the routing mechanism, the efficiency tradeoffs, and why MoE is behind GPT-4, Mixtral, and DeepSeek V3.
Beyond the buzzwords: how transformer-based language models are built, trained, and deployed, with real architecture details, cost figures, and a clear-eyed look at what 'intelligence' means in this context.
By The AI Beat · April 15, 2026
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