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Cut LLM Latency Below 1s

HardGenerative AI & LLMs00:00
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Problem

Scenario

You are shipping an LLM-powered feature and your current end-to-end response time is about 3 seconds. That is too slow for the product experience you want, so you need a plan to get it under 1 second without making answer quality unacceptable.

Question

How would you reduce LLM inference latency from 3 seconds to under 1 second?

What this tests

  • Latency decomposition across retrieval, prompt assembly, model time, and post-processing
  • Prompt and model changes that cut latency without causing quality collapse
  • Evaluation of speed, hallucination, and user impact together
  • Trade-offs between smaller models, shorter outputs, caching, and routing