---
title: "Time to first token mathematical notation"
description: "Time to first token is a recurring research-paper notation family. Measures elapsed request time until the first generated output token becomes…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/time-to-first-token"
md_url: "https://fanout.sh/labs/math-decoder/symbol/time-to-first-token.md"
last_updated: "2026-08-09"
access: "public"
---

# Time to first token mathematical notation

Time to first token is a recurring research-paper notation family. Measures elapsed request time until the first generated output token becomes…

## Public overview

Time to first token is a recurring research-paper notation family. Measures elapsed request time until the first generated output token becomes available, including prompt processing and scheduling.

Time to first token: Measures elapsed request time until the first generated output token becomes available, including prompt processing and scheduling. Example: Measure how long the user waits before generation visibly begins.

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