Diagnosing and Mitigating Context Rot in Long-horizon Search
Quick summary
arXiv:2606.29718v2 Announce Type: replace-cross Abstract: Extensive context has become the norm as Large Language Models (LLMs) are increasingly deployed in long-horizon search tasks. The concern that increasing context length degrades model capabilities, known as context rot, has become a widely recognized issue for these applications. However, in deep search scenarios, it remains unclear how models actually fail under extensive context, and to what extent existing methods can mitigate such failures. Through a systematic study of four flagship models across three benchmarks, we identify a pre
Key takeaways
- arXiv:2606.29718v2 Announce Type: replace-cross Abstract: Extensive context has become the norm as Large Language Models (LLMs) are increasingly deployed in long-horizon search tasks.
- The concern that increasing context length degrades model capabilities, known as context rot, has become a widely recognized issue for these applications.
- However, in deep search scenarios, it remains unclear how models actually fail under extensive context, and to what extent existing methods can mitigate such failures.
Why it matters
“Diagnosing and Mitigating Context Rot in Long-horizon Search” highlights the need for repeatable measurement rather than a single impressive demonstration. Independent validation across datasets and clearly stated limitations determine whether a result can guide product decisions.

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