> But unfortunately the article doesn't mention whether they used the reasoning model or not.
You can run the test yourself if you ask GPT-5.2 with reasoning effort high or xhigh, it will always answer correctly. So if the got 0 from 10, they used zero reasoning efforts which easily explain the results.
You can run the test yourself if you ask GPT-5.2 with reasoning effort high or xhigh, it will always answer correctly. So if the got 0 from 10, they used zero reasoning efforts which easily explain the results.