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AI Engineering · 100-level

Context Engineering & Cost Basics

Sit Chuun — free All modules
AIE-1032 creditscorebadge: context-thinkerprereqs: AIE-102
Start this course — free

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
Start this course — free
Learn it from the inside

This module's playgrounds

  • Context Window Lab

    Coming soon

    Bury a fact in context and watch the model forget it.

    AiAIE-103BYOK AIMedium
    Play it now

  • Pack the Brain

    Coming soon

    Pack the AI's memory before it forgets your question.

    AiAIE-103Browser (JS)Medium
    Play it now
AI Engineering

Next in this path

Where this specialization goes from here — in (level, code) order.

  • AIE-110

    Open-Source & Sovereignty (India-first)

    1 creditselectivebadge: open-weights
    Start
  • AIE-120

    AI Consequences & War-Room

    1 creditscorebadge: responsible-builder
    Start
  • AIE-130

    Model Landscape & Jargon

    1 creditselectivebadge: model-literate
    Start
  • AIE-201

    AI-Assisted Coding

    3 creditscorebadge: builder
    Start
  • AIE-202

    RAG Foundations

    3 creditscorebadge: rag-i
    Start
  • AIE-203

    RAG Quality & Retrieval Evals

    2 creditselectivebadge: rag-ii
    Start
  • AIE-204

    Structured Outputs & Function Calling

    2 creditselectivebadge: structurer
    Start
  • AIE-205

    Automation & Workflows

    2 creditselectivebadge: automator
    Start
Vocabulary

Key concepts in this course

Context Window Context Engineering Cost Per Token Token

Compare related approaches

Temperature vs Top-P Sampling Closed vs Open-Weight Models INT8 vs INT4 Quantization
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

This module ends in a gate you can fail.

That's what makes passing it mean something. Sit Chuun, get placed, and start earning.

Sit Chuun — free All modules