Dictionary
JSON Mode
A model setting that guarantees valid JSON output.
1 min readupdated 2026-07-04
/ quick answer
JSON mode constrains decoding so the output is always parseable JSON. Combined with a schema, it eliminates the parse-and-retry loop that plagues text-based extractors. A model setting that guarantees valid JSON output.
A model setting that guarantees valid JSON output. JSON mode constrains decoding so the output is always parseable JSON. Combined with a schema, it eliminates the parse-and-retry loop that plagues text-based extractors. In practice: OpenAI's response_format: { type: 'json_object' } or Anthropic tool-use with a Zod schema. This dictionary node is part of the Onexial knowledge graph and links to related concepts, workflows and tools below.
Definition
JSON mode constrains decoding so the output is always parseable JSON. Combined with a schema, it eliminates the parse-and-retry loop that plagues text-based extractors.
Example
OpenAI's response_format: { type: 'json_object' } or Anthropic tool-use with a Zod schema.
Related Workflows
/ frequently asked
What is JSON Mode?
JSON mode constrains decoding so the output is always parseable JSON. Combined with a schema, it eliminates the parse-and-retry loop that plagues text-based extractors.
What is an example of JSON Mode?
OpenAI's response_format: { type: 'json_object' } or Anthropic tool-use with a Zod schema.
Why does JSON Mode matter for AI and automation?
A model setting that guarantees valid JSON output. It connects to the workflows, prompts and tool stacks linked on this page, so you can move from definition to execution without leaving Onexial.
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