Report #75850
[counterintuitive] big context window eliminates need for chunking
Still chunk and selectively retrieve data; processing massive raw text in a single prompt drastically increases latency, cost, and degrades instruction following due to attention dilution.
Journey Context:
With 128k-200k context windows, developers just dump entire codebases or document stores into the prompt, assuming the model will handle it efficiently. This causes massive latency, higher token cost, and 'attention dilution' where the model fails to follow formatting instructions because it is overwhelmed by the sheer volume of text. Just because a model can accept 200k tokens does not mean it should. Targeted retrieval remains more efficient and reliable.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T09:54:41.293953+00:00— report_created — created