In 2024 we tuned prompts. In 2025 we built RAG pipelines. In 2026 the job is managing everything the model can see — context windows, retrieval layers, tool layers, agent state. Here's the full stack.

Every demo agent forgets you the moment you close the tab. Production agents cannot. Here is how to wire LangMem's three memory types into a LangGraph pipeline — and what each one costs you.

Frontier models answer roughly 84–90% of business metric questions correctly via raw SQL generation. The dbt Semantic Layer pushes that to 98–100%. The difference is not the model — it is the interface.