For GPT-5, smart model means that the model is using more time to answer the query. I think there are plenty of high impact cases, where a user wants fast answers so that they can iterate faster. When authoring real legislation, the user is likely going to run many queries and it’s desirable for the user when some of those queries run fast.
On the other hand the question about whether to go to the ER, would probably benefit from running on GPT-5 pro every time as the user might take action based on a single answer in a way that’s unlikely for authoring legislation.
For GPT-5, smart model means that the model is using more time to answer the query. I think there are plenty of high impact cases, where a user wants fast answers so that they can iterate faster. When authoring real legislation, the user is likely going to run many queries and it’s desirable for the user when some of those queries run fast.
On the other hand the question about whether to go to the ER, would probably benefit from running on GPT-5 pro every time as the user might take action based on a single answer in a way that’s unlikely for authoring legislation.