> Markdown version of [/events/world-congress-2025/sessions/456-from-zero-to-hero](https://www.wearedevelopers.com/events/world-congress-2025/sessions/456-from-zero-to-hero). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # From Zero to Hero: How to put GPT LLMs & friends into your applications - Generative AI in Action - **Date:** Wednesday, Jul 9, 2025 - **Time:** 09:00–17:00 (480 min) - **Room:** HIDE Room 1 - **Event:** World Congress 2025 - **Tags:** ai, apis, llms, machine learning, python, rag ## Description Unlocking the power of human language as the universal interface for software solutions—sounds intriguing, right? In this masterclass, Christian and Sebastian dive into integrating Generative AI and Large Language Models (LLMs) into your applications. With a focus on Python APIs, we’ll guide you in leveraging the capabilities of both OpenAI GPT and open-source models across a variety of use cases. The course centers on key architectural patterns such as In-Context Learning, Retrieval-Augmented Generation (RAG), Structured Output, Tool Calling, and Reasoning & Acting (ReAct). These techniques are essential for building cutting-edge, AI-enhanced business applications. Let’s explore practical approaches and end-to-end methods for integrating Generative AI into your business applications. Masterclasses are available as a paid upgrade. Secure your ticket here: [Masterclass Ticket](https://www.wearedevelopers.com/world-congress/masterclass) ## Speakers ### [Christian Weyer](https://www.wearedevelopers.com/@christian-weyer) Thinktecture AG, CTO ### [Sebastian Gingter](https://www.wearedevelopers.com/@sebastian-gingter) Developer-Consultant @ Thinktecture ## Related talks at this congress - [Revolutionizing Software Processes with AI: A Masterclass for the Future](https://www.wearedevelopers.com/events/world-congress-2025/sessions/457-revolutionizing) — Patrick Schnell - [Beyond the Hype: Building Trustworthy and Reliable LLM Applications with Guardrails](https://www.wearedevelopers.com/events/world-congress-2025/sessions/552-beyond-the-hype) — Alex Soto - [GenAI Unpacked: Beyond Basic](https://www.wearedevelopers.com/events/world-congress-2025/sessions/918-genai-unpacked) — Damir - [Best practices: Building Enterprise Applications that leverage GenAI](https://www.wearedevelopers.com/events/world-congress-2025/sessions/494-best-practices) — Damir