You need guaranteed JSON fields from Claude for a downstream parser. Which approach is MOST reliable?
Select an answer to reveal the explanation.
Short Explanation and Infographic
If you need machine-readable JSON, use schema-constrained tool/structured output and still validate on the server.
Full explanation below image
Full Explanation
Structured tool calls or schema-constrained outputs plus server validation beat free-form hoping. High temperature reduces consistency; omitting max_tokens does not enforce JSON schema.