Debugging Large Language Models (LLMs) — Challenges, Tools & Modern Techniques Explained

Pubblicato il: 20 novembre 2025
sul canale di: CodeCraft Academy
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Debugging Large Language Models (LLMs) is completely different from debugging traditional software. Unlike normal code, LLMs are non-deterministic, opaque, and driven by massive datasets — which makes finding and fixing issues far more complex.

In this video, we break down:

🔍 Key Challenges in Debugging LLMs

Non-determinism: Same input → different outputs

Opaque reasoning: Hard to interpret internal decision-making

Massive parameters & training data: Difficult to trace errors

Evaluation ambiguity: Outputs aren’t always clearly right or wrong

Distribution shift: Bugs appear only in real-world usage

🛠️ Modern Approaches to LLM Debugging

Prompt tracing & system logging

Automated evaluation & synthetic test cases

Model behavior probing & interpretability tools

Input attribution & influence functions

Fine-tuning, data curation, and RLAIF

🧰 Popular Debugging & LLMOps Tools

LangSmith

Trulens

Promptfoo

Mechanistic interpretability tools from OpenAI & Anthropic

If you're building AI agents or LLM-powered apps, this video will help you understand how to diagnose issues, improve reliability, and adopt modern LLMOps workflows.


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