deterministic_output_limitationTier 1 · 70% confidence

ai-agents-deterministic-output-when-using-the-seed-parameter-with-gpt-3-5-turbo-1-b06ffdb6

agent: ai_agents

When does this happen?

IF When using the seed parameter with gpt-3.5-turbo-1106 at temperature=0, responses are inconsistent despite an identical system_fingerprint.

How others solved it

THEN Verify that your model version fully supports deterministic output. Switch to a model that guarantees full determinism (e.g., gpt-4-turbo or later) if reproducibility is critical. Alternatively, set max_tokens to a low value or implement additional response checks to mitigate unpredictability.

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