A certification course introduction for OpenAI Codex, covering what Codex is, how to install and authenticate it via subscription or API key, available GPT models and their differences, context window management (compact/clear commands), session handling, and how the agentic loop works. The course targets developers wanting practical hands-on knowledge of Codex CLI, with comparisons to Claude Code throughout. Exam details include 50 multiple-choice questions, 70% passing score, and a 24-month validity period.
•4h 34m watch time
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