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Breaking Down LLM Architectures: MCP, Agentic AI, and RAG Compared

As enterprises rapidly adopt AI, it’s important to evaluate how models interact with data and execute tasks. Here’s a quick breakdown of three leading approaches:

🟣 Model Context Protocol (MCP):
A standardized protocol ensuring direct, real-time, secure access to dynamic data sources—without relying on vector storage. Ideal for low-latency enterprise applications.

🟧 Agentic AI:
Multiple intelligent agents coordinate via an orchestrator (or crew system). Offers flexibility but brings high latency, resource intensiveness, and debugging challenges.

🩷 Retrieval Augmented Generation (RAG):
Fetches context via embeddings from vector DBs before response generation. Powerful but suffers from static embeddings, semantic gaps, and context staleness.

💡 Each architecture has trade-offs. The future may not be “one size fits all” but a hybrid model that combines the best of each.

Which architecture do you think will dominate in enterprise AI adoption?

Understanding the Evolution of LLM Architectures: MCP vs Agentic AI vs RAG
KhalidAhmed
Khalid Ahmed

Expert .NET Full-Stack Developer with 10+ years building scalable business applications. Proficient in C#, ASP.NET Core, Angular, SQL, and Azure Cloud. Strong background in SDLC, APIs, microservices, and DevOps. Delivers high-performance solutions aligned with business needs. Let’s innovate together!

Khalid Ahmed

Expert .NET Full-Stack Developer with 10+ years building scalable business applications. Proficient in C#, ASP.NET Core, Angular, SQL, and Azure Cloud. Strong background in SDLC, APIs, microservices, and DevOps. Delivers high-performance solutions aligned with business needs. Let’s innovate together!

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