Unverified50% confidenceFactExact time
Constrained decoding can only guarantee that the syntactic structure of the output is legal (shape); it cannot guarantee the semantic correctness of the output content.
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50%
Confidence
Long-term
Relevance
10/12/2026
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Related Claims
Unverified约束解码保证格式正确，但不保证内容正确80% similarUnverifiedStructural validity does not equal answer correctness; grammar constraints can only guarantee that the output format is legal, and the model can still select the wrong option.78% similarUnverifiedTraditional constrained decoding cannot guarantee that a currently valid prefix can be completed into a fully valid structure within a fixed output length constraint77% 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.72% 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).70% similar
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