Prompt Engineering · Practitioner
Chain-of-Thought: When It Helps and When It Wastes Tokens
Asking a model to reason step by step measurably improves accuracy on hard problems — and adds pure cost with no benefit on easy ones. Learn to tell the two apart.
- 35 min lesson
- intermediate level
- Prompt Mastery Track
- Narrated presentation
What you’ll learn
- Chain-of-thought prompting
- Step-by-step reasoning
- Multi-step logic
- Token cost
- Task difficulty matching
Inside this lesson
A narrated, slide-by-slide presentation with 1 prediction exercise, 1 knowledge check, 3 videos. You answer as you go, and the platform checks your work.