OpenAI – Page 2 – ITFROMZERO

Artificial Intelligence tutorial - IT technology blog

A Practical Guide to Using OpenAI API with Python: From Setup to Production

By admin March 3, 2026

A practical guide to using the OpenAI API with Python in a DevOps environment: proper setup, building a wrapper function with retry logic, streaming responses, parsing structured JSON output, and tracking token costs. Focused on common pitfalls and how to avoid them from the start.

Building a RAG Application with LangChain and Python: From Failure to Production

By admin February 28, 2026

Six months of hands-on experience building a RAG (Retrieval-Augmented Generation) system with LangChain and Python for an internal document lookup chatbot. From hallucination issues and context window limitations to a solution that actually works in production, with complete code examples.

Integrating ChatGPT API into Web Apps: Real-World Error Handling from Production

By admin February 28, 2026

Integrating the ChatGPT API into a real web app is more than just a few API calls — you'll hit rate limits, token overflow, and unstable latency the moment you deploy. This post cuts straight to the most common production failures and how to handle them properly from the start.

Building a RAG Application with LangChain and Python — A Step-by-Step Guide for Beginners

By admin February 28, 2026

A step-by-step guide to building a RAG (Retrieval-Augmented Generation) application with LangChain and Python: from loading documents and creating a vector store with Chroma, to building a complete chain that lets your LLM answer questions based on your own data.