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Why do I get a different answer every time, even at temperature zero?
What you'll have at the end
The same prompt run five times with temperature and model version pinned, checked against structure instead of an exact string.
You need
A working call to an LLM API in your own project, using a provider whose SDK lets you set temperature, request a JSON-shaped reply, and pick an exact model id.
Not covered
Guaranteeing byte-identical text on every single run: that isn't achievable even at temperature zero, so this checks for a repeatable answer instead of an identical one.
Does temperature zero give the same answer twice?
go there once temperature and the model id are already pinned and the fields you marked exact still disagree between runs; it explains the floating-point cause behind that and a repeatability field this recipe doesn't cover
Test your API wrapper without spending real tokens
go there once running this five-call check on every commit gets expensive and you want to replay saved responses instead of hitting the real API each time
Checked 15 Aug 2026
Part of the LLM APIs and Integration cookbook