All terms
Frameworks & Tools
LMQL
A query language that treats model prompting as constrained generation with enforced output rules.
Definition
LMQL is a programming language and tool that treats prompting a language model as constrained decoding — restricting what the model is allowed to produce as it generates. Developers write prompts in Python-like code with rules, such as a required format, a length limit, or a list of allowed answers, and the tool enforces them by blocking any choice that breaks a rule. This yields output with a guaranteed structure, reducing the need to clean up the result afterward.