Logging and Observability for LLM Apps

Posted on Sat 14 November 2026 in Tutorial • Tagged with GenAI, LLM, logging, observability, production, Python, FastAPI

Why LLM Apps Need Different Observability

Traditional apps fail in predictable ways. A function throws an exception. A query times out. The error is binary: it worked or it didn't, and the stack trace points you to the line.

LLM apps fail softly. The API call succeeds. The response arrives …


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