---
title: "Discussion on \"Why LLM Apps Fail in Production: Six Failure Modes and How to Prevent Them\" | Hashnode"
description: "Discussion on \"Why LLM Apps Fail in Production: Six Failure Modes and How to Prevent Them\". Rate limits, broken JSON, runaway costs, silent regressions, blind spots and prompt injection: what goes wrong after the demo works, and the fixes that hold up."
url: "https://hashnode.com/posts/why-llm-apps-fail-in-production-six-failure-modes-and-how-to-prevent-them-felel/6af7cd349ba2b79e953d06cb"
---

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# [Why LLM Apps Fail in Production: Six Failure Modes and How to Prevent Them](https://blog.zyvop.com/why-llm-apps-fail-in-production-six-failure-modes-and-how-to-prevent-them-felel?utm_source=hashnode&utm_medium=feed)

Rate limits, broken JSON, runaway costs, silent regressions, blind spots and prompt injection: what goes wrong after the demo works, and the fixes that hold up.

21h ago · 13 min read · blog.zyvop.com  
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-   [#aiengineering](https://hashnode.com/tag/aiengineering)
-   [#evals](https://hashnode.com/tag/evals)
-   [#llm](https://hashnode.com/tag/llm)
-   [#promptinjection](https://hashnode.com/tag/promptinjection)
-   [#reliability](https://hashnode.com/tag/reliability)

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[ZyVOP](https://hashnode.com/@zyvop)

@zyvop · Delhi, India

  
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