---
type: Glossary Term
title: Lost in the Middle
description: The phenomenon where LLMs process information in the middle of long contexts worse than at the beginning or end. Documented by Liu et al. (2024) and confirmed b
resource: "https://www.contextstudios.ai/glossary/lost-in-the-middle"
category: engineering
language: en
timestamp: "2026-02-05T22:07:39.535Z"
---

# Lost in the Middle

The phenomenon where LLMs process information in the middle of long contexts worse than at the beginning or end. Documented by Liu et al. (2024) and confirmed by Chroma Research (2025). Requires strategic placement of critical information in context.

## Business Value

Critical for RAG systems and long-document analysis. Proper information placement can improve accuracy by 20-30% without any model changes.

## Context Studios Perspective

We structure all our context packets with Lost-in-the-Middle in mind – critical information at start AND end, with the 'Bracket Pattern' for non-negotiable constraints.