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Fit any chat history into the context window, bring your own tokenizer

This story is from 2026-10-09. It is preserved in the archive; the latest stories are on the live feed.

You ship a chat feature. It works. Then a conversation gets long enough, a couple of chunky tool results land in the middle, and the next request crosses the model's context window. You get one of these: 400 This model's maximum context length is 128000 tokens, however you requested 131402... So yo…

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  1. 2026-10-09 05:58 · DEV Community — AI
    Fit any chat history into the context window, bring your own tokenizer

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