Caching and rate limits

Repeated prefixes can be cached, repeated questions can be answered from your own cache, and rate limits will find you eventually — so retry with backoff.

What this lesson covers

• Cache stable prompt prefixes to cut cost
• Retry with exponential backoff on rate limits
• Queue or shed load instead of failing hard

This lesson sits in Shipping to Production, part of Building AI Apps with LLMs. It assumes what came before it and leads directly into the next lesson in the module.