Mixture of Experts: The Efficiency Trick Behind Modern AI2025-12-08•7 min read#machine learning#moe#efficiency#llm#architecture#mixtral#deepseek#neural networksMixtral uses 46.7B parameters but only activates 13B per token. This architectural trick called Mixture of Experts powers Gemini 1.5, DeepSeek V3, and more. Learn how MoE works, its hidden costs, and when to use it.