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Temperature 0 Is a Suggestion: Five LLM Determinism Myths and a Rerun Harness

This story is from 2026-10-19. It is preserved in the archive; the latest stories are on the live feed.

Your test passes locally. It fails in CI maybe once a week. The prompt did not change. So what exactly changed? Most teams answer 'the model is flaky.' That answer is lazy, and it hides a fixable bug: your assertion. Let's walk through five claims developers repeat about determinism, then build a s…

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  1. 2026-10-19 03:06 · DEV Community — AI
    Temperature 0 Is a Suggestion: Five LLM Determinism Myths and a Rerun Harness

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