---
id: "chroma-context-rot"
title: "Context Rot: How Increasing Input Tokens Impacts LLM Performance"
creator: "Chroma"
url: "https://www.trychroma.com/research/context-rot"
level: "advanced"
category: "agents"
models: ["any"]
source_date: null
date_added: "2026-10-18"
---

[Agents and harnesses](/agents/index.md)

# Context Rot: How Increasing Input Tokens Impacts LLM Performance

by Chroma

[Read the original →](https://www.trychroma.com/research/context-rot)

Measures how output quality drops as input length grows.

The research investigates how the amount of input changes model performance. It encourages measuring the effect of extra context instead of assuming that a larger supported window means every detail is used equally well.

Level: [Advanced](/levels/index.md#advanced)
Models: any
Category: [Agents and harnesses](/agents/index.md)
Tags: [context-engineering](/tags/context-engineering/index.md), [research](/tags/research/index.md)
Source date: date not stated
Added: 2026-10-18
Last verified: 2026-10-18
Status: ok

Summary in our own words. All rights with the original creator. Correction or removal: DM on X.