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Speculative decoding promises a big latency win. When does it not deliver, and what does it cost you?

It trades compute for latency, so it wins on an underloaded fleet and can lose on a saturated one. The acceptance rate decides everything, and the acceptance rate depends on traffic you do not control.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

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Next in this trackFinance wants your GPU inference service to scale to zero overnight. What do you tell them?Next in this trackYour product depends on a model API and the provider has a regional outage. What did you build beforehand?Next in this trackDefine the SLIs and SLOs for a streaming LLM endpoint. Why is p99 latency the wrong headline metric?

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