# Anthropic introduces prompt caching

> Anthropic introduced prompt caching for the Claude API, describing reuse of stable prompt prefixes to reduce cost and latency on repeated long-context requests. The announcement defined cache creation and read pricing and a time-to-live policy, making cache lifecycle and changing-context behavior engineering concerns rather than invisible implementation details.

Canonical: https://hypler.com/ai-news/anthropic-prompt-caching-2024
Hypler publication: 2026-10-06
Original source date: 2024-08-14
Publisher: Anthropic
Article kind: source-briefing
Category: Developer tools
Tags: prompt caching, latency, API

## Engineering relevance

Caching can reduce cost while serving stale or incorrectly scoped context. Hypler should specify cache keys, retention, invalidation, tenant isolation, and observability before using it for sensitive workflows.

## Original source

- [Anthropic](https://claude.com/blog/prompt-caching)

## Image provenance

### Primary image

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### Supporting image

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## Reading boundary

Historical source briefing, not current availability, compliance advice, partnership, or proof of Hypler deployment. Generated artwork is not event photography. Public reading grants no private access or execution authority.