---
type: faq
name: anthropics-built-in-prompt-caching-supersedes-custom-caching
source: .claude/CLAUDE.md
---

# FAQ: What should I know about anthropic's built-in prompt caching supersedes custom caching?

## Answer

Since Dec 2024, the Anthropic API provides 90% input token discounts via server-side prompt caching. The Claude Agent SDK uses this automatically.

```
sentence-transformers
```

## Related Topics
- **Error**: Detailed error: Anthropic's built-in prompt caching supersedes custom
  caching
