Unverified50% confidenceFactExact time
Constrained decoding dynamically masks, at each sampling step, tokens that do not conform to the target grammar (such as a regular expression or context-free grammar), mathematically excluding illegal outputs.
1
Sources
50%
Confidence
Long-term
Relevance
10/19/2026
First Seen
Sources
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Related Claims
VerifiedConstrained decoding dynamically blocks candidate words that do not conform to the target grammar or schema when the model generates each token, ensuring the output structure is legal at the decoding level.79% similarUnverifiedHard constraints in the decoding phase physically guarantee that outputs conform to predefined grammar or schemas by masking illegal vocabulary options during token generation (logit masking or structured sampling).77% similarUnverifiedGrammar-constrained decoding filters out token candidates that do not conform to the target format in real time during model generation, making it physically impossible for the model to output incorrectly formatted content, but it still cannot eliminate semantic errors.77% similarUnverifiedConstrained Decoding ensures valid syntactic paths by setting the probability of illegal tokens to zero before each sampling step, based on the content already generated and the target Schema constraints.74% similarVerifiedConstrained decoding can only guarantee that the syntactic structure of the output is legal (shape); it cannot guarantee the semantic correctness of the output content.73% similar
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