---
title: "Discussion on \"Reliable JSON from any OpenAI-compatible model: json_schema, then json_object, then prompt-only, validated with Pydantic\" | Hashnode"
description: "Discussion on \"Reliable JSON from any OpenAI-compatible model: json_schema, then json_object, then prompt-only, validated with Pydantic\". One function that degrades gracefully when a model doesn't support structured outputs, and repairs invalid replies by showing the model its own validation errors."
url: "https://hashnode.com/posts/reliable-json-from-any-openai-compatible-model-json-schema-then-json-object-then-prompt-only-validated-with-pydantic/6adc69a4a6d3c5bbf619355f"
---

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# [Reliable JSON from any OpenAI-compatible model: json\_schema, then json\_object, then prompt-only, validated with Pydantic](https://apigoto-notes.hashnode.dev/reliable-json-from-any-openai-compatible-model-json-schema-then-json-object-then-prompt-only-validated-with-pydantic?utm_source=hashnode&utm_medium=feed)

One function that degrades gracefully when a model doesn't support structured outputs, and repairs invalid replies by showing the model its own validation errors.

Oct 24 · 6 min read · apigoto-notes.hashnode.dev  
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-   [#pydantic](https://hashnode.com/tag/pydantic)
-   [#json](https://hashnode.com/tag/json)
-   [#python](https://hashnode.com/tag/python)
-   [#llm](https://hashnode.com/tag/llm)
-   [#openai-api](https://hashnode.com/tag/openai-api)

## Written by

[lucky wang](https://hashnode.com/@apigoto-builder)

@apigoto-builder · Singapore

  
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