Verified80% confidenceFactTime unknown
Structured output imposes constraints on token generation during the decoding phase through JSON Schema or function-calling mechanisms, which is fundamentally different from requesting JSON-format output in the prompt.
4
Sources
80%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedJSON Mode only guarantees that the output is valid JSON without constraining the field structure; Structured Outputs enforces output conforming to a predefined JSON Schema at the syntactic level by applying a finite state machine (FSM) to constrain the token sampling path during the decoding phase.83% similarUnverifiedPrompt API 配合 JSON Schema 结构化输出，可通过 responseConstraint 约束模型输出格式，使 JSON 结构保持稳定81% similarUnverifiedJSON-structured prompts express creative intent through nested data structures such as key-value pairs and arrays, as distinct from traditional natural-language prompts.79% similarVerifiedThe core mechanism of Function Calling is that developers describe external function signatures in JSON Schema format, and the model outputs structured JSON invocation instructions that conform to the schema specification.79% similar
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