They may have just fine-tuned 3.5 to respond with valid JSON more times than not. Building magic functions[0] I ran into many examples where JSONSchema broke f

They may have just fine-tuned 3.5 to respond with valid JSON more times than not. Building magic functions[0] I ran into many examples where JSONSchema broke for gpt-3.5-turbo but worked well for gpt-4. [0] https://github.com/jumploops/magic https://github.com/jumploops/magic