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This 34-minute tutorial introduces LangChain v0.3, one of the most popular open-source libraries for AI Engineers that abstracts away complexity in building AI software, provides easy-to-use building blocks, and facilitates switching between AI service providers. Build a simple LLM-powered assistant while learning essential concepts including local and Colab setup, initializing OpenAI LLMs, LLM prompting, using prompt templates, creating LLM chains with LCEL, developing text generation pipelines, implementing structured outputs, and integrating image generation capabilities. The tutorial is part of a full course available at aurelio.ai and includes access to a GitHub repository with all code examples.
