> Even their "function calling" abstraction still hallucinates parameters and sc... | Hacker News

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		swyx on March 12, 2025 \| parent \| context \| favorite \| on: New tools for building agents > Even their "function calling" abstraction still hallucinates parameters and schema huh? sample code please? this should not be true since Structured Outputs came out - literally prevented from generating invalid json (more: https://www.latent.space/p/openai-api-and-o1)

amitness on March 12, 2025 [–]

It's not enabled by default for their function calling API. So, hallucination is possible.

You have to set 'strict' to True manually to use the same grammar-based sampling they use for structured outputs.

https://platform.openai.com/docs/guides/function-calling?api...

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