Q: How much does it cost to learn AI engineering?

Less than most people spend on coffee in a month. This surprises everyone.

The fear is understandable: you're calling paid APIs, and cloud bills have a scary reputation. But learning-stage API usage is tiny. A typical exercise sends a few thousand tokens to a small model and costs a fraction of a cent. $10 of API credit covers weeks of daily hands-on work: building a chatbot, RAG pipelines, and agents included.

Costs only become a real topic when an app is deployed and other people are using it: every visitor's question hits your API key. While it's you, alone, learning and building: essentially free.

And if even $10 is a barrier, legitimate free routes exist: Google's Gemini API has a free tier, OpenRouter offers a rotating set of free models, and you can run small open source models locally for nothing. There has never been a cheaper time to learn an engineering skill this valuable. The real investment is your hours, not your dollars.