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int4

2 posts

QUANTIZATION · 09AFTERTRAINEDWEIGHTS THAT SURVIVE ROUNDING
quantizationqatmxfp4

Quantization-Aware Training: When the Model Learns Its Own Precision

Why Kimi K2 Thinking ships in INT4 and gpt-oss and K3 in MXFP4: training with rounding in the loop, explained and measured on a small model.

by The Serving Stack
NUMBER FORMATS · 04ONE SCALE PER TENSOR87% ERROR IN INT432 WEIGHTS, ONE OUTLIER
formatsint8int4

Integers for AI: INT8, INT4, Scales, and Zero Points

How integers represent real weights: scales, zero points, per-tensor, per-channel, and per-group, measured on every weight of Qwen3-8B.

by The Serving Stack

Inference Notes

Once a week: what changed in serving AI models, and what it means if you build, run or pay for them, in about five minutes.

The Serving Stack

Inference Engineering, In Depth

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