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USASI

Learning path · For developers and technical teams

Building with AI

How models call tools, answer from your documents, run as agents, and get adapted through fine-tuning.

6 steps · about 23 min of reading

  1. Step 1 · Explainer · Intermediate · 6 minHow AI models use toolsFunction calling, hosted tools, and the Model Context Protocol.
  2. Step 2 · Explainer · Intermediate · 6 minRetrieval-augmented generation (RAG)Answering from documents a model was not trained on.
  3. Step 3 · Explainer · Beginner · 5 minAgents and robotics without the hypeWhere permissions and human approval actually live.
  4. Step 4 · Explainer · Intermediate · 6 minPretraining, fine-tuning, and post-trainingHow base models become assistants, and what fine-tuning changes.
  5. Step 5 · Topic hubAI agents and agent toolingAgent protocols, SDKs, and coding agents in the catalog.
  6. Step 6 · Topic hubBuilding software with AILibraries, inference servers, and SDKs.

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