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Testing Prompt Caching in RubyLLM 2.0

thoughtbot — Sep 25, 2026 — deep-dive

Why watch

Chad and Louis from thoughtbot test prompt caching functionality in RubyLLM 2.0, investigating whether ReadySetGo's implementation works as expected. The video demonstrates how to test LLM prompt caching, identify issues, and explore changes to reduce LLM API costs. Ideal for Ruby developers working with LLMs who want to optimize costs.