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Same model, faster agent: Harness Fast mode

This story is from 2026-10-18. It is preserved in the archive; the latest stories are on the live feed.

Can a coding agent deliver sooner without switching to a faster model? We tested that in Sunny Code by comparing Fast and Standard execution policies , with the model and reasoning setting held fixed. Across nine small tasks, Fast reached local delivery sooner in all 36 paired observations. Across…

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  1. 2026-10-18 17:52 · DEV Community — AI
    Same model, faster agent: Harness Fast mode

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