Unverified50% confidenceFactExact time
The industry uses “Context Rot” to describe the phenomenon in which, as input grows longer, the model's accuracy in retrieving and reasoning about information in middle positions declines.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Does AI Get Dumber the Longer You Chat? How Claude Code and Cursor Manage Context
bilibiliblackstone_9910/14/2026
Related Entities
Related Claims
VerifiedContext Rot refers to the phenomenon where, as the number of conversation turns increases, irrelevant information accumulates and the attention budget becomes filled with low-value content, causing reasoning quality to continuously decline.80% similarUnverifiedContext Rot（上下文腐烂）指随着对话变长、输入 Token 增多，模型准确度会逐步下降，该现象在 Claude、OpenAI、Gemini 等主流模型上普遍存在79% similarUnverified尽管上下文窗口很大，上下文腐化（Context Rot）依然是巨大问题，模型对上下文中不同位置信息的注意力分布不均匀（Lost in the Middle效应）78% similarUnverified"Context rot" refers to the phenomenon where many models nominally offer a 1M window but show a marked drop in recall in the middle of the sequence or under extremely long inputs.77% similarUnverifiedToo much irrelevant information, poor structure, or missing data can lead to worse reasoning and more hallucinations, a phenomenon known as 'Context Rot.'73% similar
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