---
title: "GQA query-group size mathematical notation"
description: "GQA query-group size is a recurring research-paper notation family. Counts how many query heads share each key-value head when query and KV head counts…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/kv-group-size"
md_url: "https://fanout.sh/labs/math-decoder/symbol/kv-group-size.md"
last_updated: "2026-08-09"
access: "public"
---

# GQA query-group size mathematical notation

GQA query-group size is a recurring research-paper notation family. Counts how many query heads share each key-value head when query and KV head counts…

## Public overview

GQA query-group size is a recurring research-paper notation family. Counts how many query heads share each key-value head when query and KV head counts divide evenly.

GQA query-group size: Counts how many query heads share each key-value head when query and KV head counts divide evenly. Example: Each of eight KV heads serves four of the thirty-two query heads.

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