# 第十章 成本优化与性能调优

合理管理成本和优化性能是生产应用的关键。

{% @mermaid/diagram content="graph TD
classDef s1 fill:#E65100,stroke:#333,stroke-width:2px,color:white,font-weight:bold
classDef s2 fill:#1565C0,stroke:#333,stroke-width:2px,color:white,font-weight:bold
classDef s3 fill:#2E7D32,stroke:#333,stroke-width:2px,color:white,font-weight:bold
classDef s4 fill:#7B1FA2,stroke:#333,stroke-width:2px,color:white,font-weight:bold
classDef center fill:#FFF3E0,stroke:#E65100,stroke-width:3px,color:#333,font-weight:bold

```
C["💰 Cost Optimization<br/>Strategies"]:::center
C --> T["1⃣ Token Pricing<br/>Input/Output<br/>per-token billing"]:::s1
C --> P["2⃣ Prompt Caching<br/>Cache static context<br/>90% cost reduction"]:::s2
C --> W["3⃣ Context Window<br/>Manage token budget<br/>Summarize + Trim"]:::s3
C --> M["4⃣ Model Selection<br/>Haiku < Sonnet < Opus<br/>Right model for task"]:::s4" %}
```

***

## 本章重点

* Token 计费原理
* Prompt Caching 提示缓存
* 上下文窗口管理
* 模型选择与成本权衡

***

## 章节导航

| 章节                                                                                    | 主题                  |
| ------------------------------------------------------------------------------------- | ------------------- |
| [10.1](/claude_guide/di-si-bu-fen-shi-zhan-pian/10_optimization/10.1_pricing.md)      | Token 计费原理          |
| [10.2](/claude_guide/di-si-bu-fen-shi-zhan-pian/10_optimization/10.2_caching.md)      | Prompt Caching 提示缓存 |
| [10.3](/claude_guide/di-si-bu-fen-shi-zhan-pian/10_optimization/10.3_context_mgmt.md) | 上下文窗口管理             |
| [10.4](/claude_guide/di-si-bu-fen-shi-zhan-pian/10_optimization/10.4_selection.md)    | 模型选择与成本权衡           |


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