Dev Tools · 18h ago
Testing Non-Deterministic AI Agents: Why Exact String Assertions Fail
Even with temperature=0, LLM outputs can vary due to GPU math, batching, and infrastructure changes. Exact-string assertions create flaky tests that erode trust in test suites. Developers should instead assert on structure, required fields, and valid ranges to ensure reliability.
Meridian48 take
The article correctly identifies a common pitfall but overstates the problem—structured output formats like JSON can mitigate most non-determinism without abandoning exact checks entirely.
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How to Test Non-Deterministic AI Agents (When temperature=0 Isn't Enough) →
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