OpenAI has made some improvements to Structured Outputs:
Parallel function calling now works with strict mode—ensuring calls reliably adhere to schema
Many more keywords are now supported, letting you specify:
- Output string lengths and formats via regex or formats like email
- Min/max ranges for numbers
- Min/max elements in arrays
- and more!
Read the full set of structured output improvements in docs: https://platform.openai.com/docs/guides/structured-outputs?api-mode=responses#supported-schemas
