Try giving this problem to different AI LLM chatbots:

If I could make a rocket that could accelerate at 3 Gs for 10 years, how long would it take to travel from Earth to Alpha Centauri by accelerating at 3 Gs for half the time, then decelerating at 3 Gs for half the time?

Hint: They don't all get it right. Some of them never got it right after hints, corrections, etc.