--- title: Structured LLM outputs | daily.dev description: LLMs can occasionally produce invalid outputs when generating structured data like JSON or XML due to their probabilistic nature. This handbook provides... canonical: https://daily.dev/posts/structured-llm-outputs-teo2nftgk twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Structured LLM outputs | daily.dev og:description: LLMs can occasionally produce invalid outputs when generating structured data like JSON or XML due to their probabilistic nature. This handbook provides... og:url: https://daily.dev/posts/structured-llm-outputs-teo2nftgk og:image: https://api.daily.dev/og/posts/TEO2NftGK.png og:image:alt: Structured LLM outputs og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Structured LLM outputs **[Hacker News](https://daily.dev/sources/hn)** · 2 min read · 1 upvotes · 0 comments ## Summary LLMs can occasionally produce invalid outputs when generating structured data like JSON or XML due to their probabilistic nature. This handbook provides developers with comprehensive guidance on ensuring deterministic structured outputs from LLMs, covering underlying mechanisms, available tools and techniques, deployment strategies, latency and cost optimization, and output quality improvement. It serves as a regularly updated resource consolidating information from academic papers, blogs, and repositories. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to Get Reliable Structured Data Out of an LLM](https://daily.dev/posts/how-to-get-reliable-structured-data-out-of-an-llm-lzwbvavpz) · freeCodeCamp · 0 upvotes · 0 comments - [Structured Outputs in 2026: A Developer Guide](https://daily.dev/posts/structured-outputs-in-2026-a-developer-guide-4qqi5lmpc) · Alex CloudStar · 1 upvotes · 0 comments - [Structured Outputs in LLM Applications: A Complete C\# Developer Guide](https://daily.dev/posts/structured-outputs-in-llm-applications-a-complete-c-developer-guide-yys1kk1ad) · C\# Corner · 3 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm) [View this post on daily.dev](https://daily.dev/posts/structured-llm-outputs-teo2nftgk) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Structured LLM outputs","url":"https://daily.dev/posts/structured-llm-outputs-teo2nftgk","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/structured-llm-outputs-teo2nftgk"},"datePublished":"2026-01-17T01:26:33.590Z","dateModified":"2026-01-17T01:26:53.105Z","description":"LLMs can occasionally produce invalid outputs when generating structured data like JSON or XML due to their probabilistic nature. 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