Semantic Kernel: Microsoft’s Enterprise SDK for Building AI-Powered Applications

Introduction: Semantic Kernel is Microsoft’s open-source SDK for integrating Large Language Models into applications. Originally developed to power Microsoft 365 Copilot, it has evolved into a comprehensive framework for building AI-powered applications with enterprise-grade features. Unlike other LLM frameworks that focus primarily on Python, Semantic Kernel provides first-class support for both C# and Python, making […]

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Multimodal AI Applications: Building Systems That See, Hear, and Understand

Introduction: Multimodal AI processes and generates content across multiple modalities—text, images, audio, and video. This capability enables applications that were previously impossible: describing images, generating images from text, transcribing and understanding audio, and creating unified experiences that combine all these modalities. This guide covers the practical aspects of building multimodal applications: vision-language models for image […]

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Embedding Models Compared: OpenAI vs Cohere vs Voyage vs Open Source

Introduction: Embedding models convert text into dense vectors that capture semantic meaning. Choosing the right embedding model significantly impacts search quality, retrieval accuracy, and application performance. This guide compares leading embedding models—OpenAI’s text-embedding-3, Cohere’s embed-v3, Voyage AI, and open-source alternatives like BGE and E5. We cover benchmarks, pricing, dimension trade-offs, and practical guidance on selecting […]

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Edge AI with ONNX Runtime: Running Models On-Device

Last year, I deployed an AI model to a mobile device. The first attempt failed—the model was too large, inference was too slow, and battery drain was unacceptable. After optimizing 15+ models for edge deployment using ONNX Runtime, I’ve learned what works. Here’s the complete guide to running AI models on-device with ONNX Runtime. Figure […]

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RAG Optimization: Query Rewriting, Hybrid Search, and Re-ranking

Introduction: Retrieval-Augmented Generation (RAG) grounds LLM responses in factual data, but naive implementations often retrieve irrelevant content or miss important information. Optimizing RAG requires attention to every stage: query understanding, retrieval strategies, re-ranking, and context integration. This guide covers practical optimization techniques: query rewriting and expansion, hybrid search combining dense and sparse retrieval, re-ranking with […]

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LLM Routing and Model Selection: Optimizing Cost and Quality in Production

Introduction: Not every query needs GPT-4. Routing simple questions to cheaper, faster models while reserving expensive models for complex tasks can cut costs by 70% or more without sacrificing quality. Smart LLM routing is the difference between a $10,000/month AI bill and a $3,000 one. This guide covers implementing intelligent model selection: classifying query complexity, […]

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