Unverified50% confidenceFactExact time
Structured output is a constrained decoding mechanism that allows a request to carry a JSON Schema and masks tokens that do not conform to the schema during decoding, thereby in theory bringing the format-parsing success rate close to 1, but it cannot guarantee the semantic correctness of field values.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedStructured output refers to forcing a language model to generate responses according to a predefined format (most commonly JSON Schema) rather than free text.79% similarUnverifiedConstrained decoding can only guarantee that the output format is legal, not that it is semantically self-consistent; when the schema allows fields to be freely combined while mutually exclusive relationships are written only in natural language prompts, small models may generate parseable but business-nonsensical JSON.78% similarVerifiedConstrained 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.75% similarUnverifiedConstrained 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.74% similarVerifiedContext in structured JSON format tends to produce more stable model outputs than natural language descriptions.72% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1052539API
curl https://kongchang.com/api/v1/knowledge/claims/1052539MCP
get_claim(id=1052539)