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A Bigger Context Window Is Not More Memory: Five Token Myths and a Budget Gate

This story is from 2026-10-27. It is preserved in the archive; the latest stories are on the live feed.

Your counter says 12k tokens. The API returns a 400. Which one is lying? Probably neither. They are counting different things. One of them is counting your string. The other is counting what the model actually receives. I keep seeing the same five assumptions in code review. Each one feels safe. Ea…

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  1. 2026-10-27 00:23 · DEV Community — AI
    A Bigger Context Window Is Not More Memory: Five Token Myths and a Budget Gate

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