Grok-1-W4A8KV8

Introduction

This model was created by applying Quark with calibration samples from Pile dataset.

Quantized Layers: All linear layers excluding "lm_head", "*.gate"
Weight: FP8 symmetric per-tensor, additionally, INT4 symmetric per-channel for MoE linear
Activation: FP8 symmetric per-tensor
KV Cache: FP8 symmetric per-tensor

Every eight int4 values are packed into a single int32 integeter following the sequence defined by order_map = [0, 2, 4, 6, 1, 3, 5, 7].

Follow Quantizing Sharded Grok-1 with Quark for SGLang to produced the quantized model using Quark.

Quark has its own export format and allows FP8 quantized models to be efficiently deployed using the SGLang backend.

Benchmark	grok-1	grok-1-W4A8KV8(this model)
gsm8k	0.821	0.817