What AI says about Formatron

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Formatron is a Python library that allows users to control the output format of language models using regular expressions, context-free grammars, and JSON schemas.

AI mentioned Formatron from November 2025 to September 2026.

Questions and answers

QuestionMost mentioned

I am struggling to prompt models effectively to follow complex JSON schemas. Who offers tools that force constrained output decoding?Outlines is the most-mentioned brand

Sites AI cites

AI cited github.com in these answers, after github.com, reddit.com, and youtube.com.

github.com (opens in a new tab)24%
reddit.com (opens in a new tab)12%
youtube.com (opens in a new tab)7%
arxiv.org (opens in a new tab)5%
openai.com (opens in a new tab)5%

Brands AI mentions

llama.cpp, llguidance, and Outlines appeared in every answer that mentioned Formatron.

llama.cpp
llguidance
Outlines
Guidance
Instructor

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