Day 4: Building with the OpenAI API

Today's Objective

API keys, completions, chat endpoints, streaming, and your first Python script that calls an AI model. The threshold between using AI and building with AI — crossed in one session.

Content coming soon.

What's Next

The foundations from today carry directly into Day 5. In the next session the focus shifts to AI Safety, Ethics, and What Comes Next — building directly on everything covered here.

Supporting Videos & Reading

Go deeper with these external references.

YouTube

Building with the OpenAI API — Video Walkthroughs Community tutorials and walkthroughs covering the concepts in this lesson.

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YouTube

Building with the OpenAI API Explained Deep-dive explanations and live-coding sessions from top educators.

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Official Docs

Official Documentation Primary reference documentation for the technologies covered in this lesson.

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GitHub

Open Source Examples Real-world codebases demonstrating the patterns taught in this lesson.

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Day 4 Checkpoint

Before moving on, verify you can answer these without looking:

What is the core concept introduced in this lesson, and why does it matter?
What are the two or three most common mistakes practitioners make with this topic?
Can you explain the key code pattern from this lesson to a colleague in plain language?
What would break first if you skipped the safeguards or best practices described here?
How does today's topic connect to what comes in Day 5?

Live Bootcamp

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Thu–Fri sessions in Denver, Los Angeles, New York, Chicago, and Dallas. $1,490 per seat. June–October 2026.

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Continue To Day 5

Day 5

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