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Costs

1 article tagged Costs.

AI Agents LLM Basics Claude Tutorials MCP Context Engineering Prompting Costs RAG

Prompt caching: cheaper and faster LLM calls

Agents resend the same long prefix on every step. Prompt caching lets the provider reuse that work at a fraction of the price and with lower latency. Here's how it works, how to set it up, and what quietly breaks it.