Ask HN: GPT-5 still needs a second nudge for calculation?
Tried asking GPT-5 to calculate: 356181.267*(12+572)/2-6752
First reply used reasoning mode and got it wrong. Only after I said “use external calculator” did it manage to use Python code to get the right answer.
Why doesn't it automatically switch to the calculator for basic math now in late 2025? Design trade-off, or something else?
The new "router" will try to pick the cheapest/easiest model. If you know you want it to write code, say, "Write a TS (or Python) program to do... then run it and show me the output.