Spring AI Tutorial: Running First Steps with Ollama and Local Models

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The article walks developers through getting started with Spring AI by pairing it with a locally hosted Ollama instance. It explains how to pull a model such as qwen2.5:3b and configure the application's model name, base URL, and temperature setting. A basic REST controller using ChatClient is shown to send a prompt and return the model's text reply. The guide then demonstrates mapping model output directly into a Java record for routing decisions, and introduces @Tool-annotated methods so the LLM can call application code, such as a service status checker, rather than guessing answers.

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