AI Engineering · 100-level
Context Engineering & Cost Basics
AIE-1032 creditscorebadge: context-thinkerprereqs: AIE-102
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Earn the context-thinker credential
What's inside
Sections & lessons
01
Context window mechanics
- The context window as a fillable, finite containerconcept45 min
02
Lost-in-the-middle & context rot
- Burying a fact and watching the model forget itconcept60 min
03
Cost basics & token pricing
- Turning a token count into a real dollar figureconcept60 min
04
Lab + eval-gate: cost-aware context budget
- Pack a fixed context bar without evicting the answer (Context Thinker badge)concept120 min
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This module's playgrounds
Vocabulary
Key concepts in this course
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Optional · watch & try
Go deeper, elsewhere
Hand-picked public explainers and open tools — always optional, never required, never graded.
Context Engineering Explained (5 Practical Tips)Practical tactics for curating what actually goes into the context window What Is Context Engineering? (Quick LLM Explanation)60-second framing of context engineering vs. prompt engineering · ~1 minContext Engineering: The Next LLM FrontierWhy context curation matters more than prompt wording at scale Context Window VisualizerFills a visual budget bar as you paste text, showing context-window consumption live TiktokenizerReuse to see exactly how many tokens a context payload costs before sending it
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