LLM vs RAG vs AI Agent vs Agentic AI: The Architecture Guide (2026)
Four architectures, one ladder. What each rung adds, what it really costs, how it fails, and how to pick the lowest rung that solves your problem well.
Taskade Blog36 min read
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Four architectures, one ladder. What each rung adds, what it really costs, how it fails, and how to pick the lowest rung that solves your problem well.
Cost per task is what AI work really costs. The formula, the hidden multipliers, a 20-task test to measure your own, and a dated real-world case study.
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