Unverified50% confidenceFactExact time
Outlines 通过将正则表达式和 JSON Schema 编译为有限状态机（FSM），再映射到 LLM 分词器的词表空间来实现约束
1
Sources
50%
Confidence
Long-term
Relevance
7/22/2026
First Seen
Sources
Related Claims
UnverifiedOutlines pre-compiles constraints into an FSM before inference, and offline-maps the tokenizer's complete vocabulary to each FSM state to generate an index table of valid token sets per state.72% similarUnverifiedConstrained Decoding guarantees at the sampling level that outputs will conform to a specified JSON Schema or regular expression; typical open-source implementations include Outlines, Guidance, and LM Format Enforcer.71% similarUnverifiedOutlines pre-compiles constraints into an FSM before inference and performs an offline mapping between the tokenizer vocabulary and each state of the FSM; during inference, hard constraints are enforced by setting the logits of illegal tokens to negative infinity (logits masking).68% similar
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