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Home/Glossary/Quantization quality recovery

Quantization

Quantization quality recovery

What it is

Quantization quality recovery is the measured retention of task performance after a model moves to lower precision. Recovery is evaluated against the same unquantized baseline, task set, and scoring method.

Why it moves cost and latency

A faster or smaller model is not useful if the precision change breaks the behavior the workload needs. Scaling, calibration, outlier handling, and selective precision can recover score, but none guarantees parity.

What it looks like in practice

Teams run representative evaluations before and after quantization, then compare scores with uncertainty and failure cases visible. They accept a serving configuration only when quality and performance meet the stated workload criteria.

Where we measured it

  • Measured baseline and optimized quality->
  • Measured staged quality recovery->
  • H100 package quality comparisons->
  • Quality scores against recorded baselines->

Related terms

  • FP8 quantization->
  • Channelwise quantization->
  • GGUF->
  • GPTQ->
  • Calibration data->

Questions this definition answers

What does Quantization quality recovery mean in inference serving?

Quantization quality recovery is the measured retention of task performance after a model moves to lower precision. Recovery is evaluated against the same unquantized baseline, task set, and scoring method. Teams run representative evaluations before and after quantization, then compare scores with uncertainty and failure cases visible. They accept a serving configuration only when quality and performance meet the stated workload criteria.

Why can Quantization quality recovery move cost or latency?

A faster or smaller model is not useful if the precision change breaks the behavior the workload needs. Scaling, calibration, outlier handling, and selective precision can recover score, but none guarantees parity.

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