Watch: OpenAI Codex Full Tutorial 2026 — Complete AI Coding Guide

Arsh Goyal’s latest OpenAI Codex tutorial walks you through building a competitive programming platform from zero to working prototype in just 90 minutes. This hands-on session is perfect for developers who understand basic coding concepts but want practical AI integration experience. You’ll watch real-time problem-solving as he builds a Practice Question Generator using Codex, the AI engine powering GitHub Copilot. No advanced AI knowledge required — just curiosity and willingness to follow along.

Arsh Goyal has become essential viewing for developers serious about AI integration. His tutorials skip the fluff and dive straight into live coding, meaning you see actual mistakes, debugging, and problem-solving in action. That’s infinitely more valuable than polished demos. The 90-minute format respects your time while covering genuine depth. Codex remains one of the most practical AI tools for developers, and seeing it applied to a real project transforms it from abstract concept to tangible tool.

After watching, you’ll understand how Codex interprets natural language prompts and generates functional code. You’ll see how to structure problems for AI assistance and handle when solutions need refinement. Most importantly, you’ll gain confidence building your own AI-powered applications. Whether you’re creating coding assistants, automation tools, or competitive programming platforms, you’ll have a working blueprint. This tutorial bridges the gap between “I know Codex exists” and “I can actually build with it.”

Bottom line: This is the tutorial that transforms Codex from theoretical to practical for any developer ready to ship AI features in 2026.