How do I get an AI to return valid JSON only?

StarterAny assistantcoding

Tell the model exactly which keys and types you want, say "return only JSON with no extra text", and show one example.

Members only · free

Unlock the full answer

Create a free account (just an email) to read everything, copy prompts and join the boards. No card needed.

Often yes, especially with assistants that can run code on uploaded files, but you should verify the results.

accuracy

Many assistants can search the web in some modes or plans, but not all do by default, and it differs by product and over time.

getting-started

No, AI text detectors are not reliable.

accuracy