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I Asked AI to Count My Carbs 27,000 Times. It Couldn’t Give Me the Same Answer Twice.
(www.diabettech.com)
this post was submitted on 01 May 2026
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The models themselves are actually entirely deterministic. The non-determinism you see is actually artificially introduced at the application layer to make the output seem more human. It's usually controlled by a setting called "heat", which when set to 0 will give completely reproducible results.
This is correct, I suppose you're talking about the final softmax layer? When I said they are bad at determinism, I was talking about reasoning on deterministic rules not having deterministic output. For example, LLMs make logical deduction errors, calculation errors etc.