Unverified50% confidenceFactExact time
In json_object mode, LangExtract expects bare JSON; if the model returns a JSON block with explanatory text and fences, it is discarded, with the log reading Chunk omitted from results (parse error): Failed to parse JSON content.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/19/2026
First Seen
Valid until: 1/17/2027
Sources
Related Entities
Related Claims
UnverifiedTruncated JSON output cannot be parsed and will directly throw an error.79% similarUnverifiedRegex-matching the content between curly braces fails when it encounters nested objects or curly braces inside strings, so it is not a robust JSON extraction method.76% similarUnverifiedJSON.parse() throws a SyntaxError exception when it encounters a malformed string, and if not wrapped in a try-catch block, this will interrupt the execution flow.74% similarUnverifiedDifferent models adhere to JSON Schema to varying degrees and may omit required fields, write numbers as strings, change key names in nested objects, or return explanatory text instead of JSON.73% similarUnverifiedAntirion uses a custom JSON parser that records the offsets of JSON members in the raw bytes, so when the vendor and client dialects match, the request body is never copied (zero-copy).71% similar
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