Does anyone know what the actual messages payload that ChatGPT (web interface) uses...

Does anyone know what the actual messages payload that ChatGPT (web interface) uses looks like? I'm trying to replicate it using the API but the results are not nearly the same quality. What I mean is like this part in particular ```messages=[ {"role": "system", "content": "You are a helpful assistant."}, {"role": "user", "content": prompt }, ]```