Production AI Systems: sections and modules
T4.5
Cost and latency optimisation
Model cost and latency, and apply the 8 drivers.
About 2 h 59 min: 59 min reading + 2 h practice · 8 lessons
- Scope
- Cost and latency only
- Prerequisites
Lessons
Start module- 1Why Cost and Latency Decide Production
6 min · Credited source
- 2The Eight Cost and Latency Drivers
7 min · Credited source
- 3Latency: Prefill, Decode, Streaming, and the Tail
7 min · Credited source
- 4Model Routing and Prompt Discipline
7 min · Credited source
- 5Caching in GenAI Systems
10 min · Credited source
- 6RAG and Agent Cost Controls
7 min · Credited source
- 7Budgets and Spend Guardrails
7 min · Credited source
- 8Practise Cost and Latency Interview Questions
8 min · Credited source
Also used in this module
Lessons taught in another module that this one builds on.
- Deterministic Context Assembly
4 min · Credited source
Practise and Check
- Deliverable
- Cost model for P2 at 10× load
- Assessment
- Checkpoint
- Interview probe
- Cut cost 50% without hurting quality
- Common mistakes
- Optimising before measuring
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