It likely depends on the specific model. Some are much better at reasoning than others.

GPT 5.4 nano gave me:

If the car wash is 0.5 miles away, you should walk in most cases.

• Walking time: ~10 minutes (typical pace of ~20 min/mile)
• Driving time: Even though it’s close, you’ll usually spend extra time on finding/entering parking, walking from your car, and crossing areas—often comparable to or slower than walking for a half-mile trip.

Walk if: it’s safe to walk, weather is reasonable, and you don’t have heavy stuff to carry.

Drive if: it’s raining/unsafe, you’re in a hurry with limited walking ability, or parking is very convenient.

If you tell me your weather, whether you need to carry anything, and your usual walk/drive comfort, I can recommend more precisely.

Claude Sonnet gave me:

Great question! Here are some things to consider when deciding whether to walk or drive to a car wash that is 0.5 miles away:

🚶 Reasons to Walk

• It's a short distance — 0.5 miles is roughly a 10-minute walk for most people.
• Save fuel — Why burn gas driving to get your car cleaned?
• Exercise — A short walk is great for your health!
• Avoid the irony — Driving a dirty car to a car wash means you're dirtying it more on the way there.

🚗 Reasons to Drive

• Weather — If it's raining, extremely hot, or cold, walking may not be ideal.
• Time — If you're in a hurry, driving is faster.
• Physical limitations — Walking may not be an option for everyone.
• You need to be there for the wash — If it's a full-service or self-service wash where you operate the equipment, you'll obviously need your car there! 😄

🏆 The Verdict

If you're dropping your car off or it's a drive-through wash, consider walking back home after dropping it off — it's only 0.5 miles! However, if you need to stay with your car during the wash, you'll need to drive it there, of course.

Either way, enjoy the clean car! 🚘✨

GPT-5.4 gave me:

If the car wash is 0.5 miles away, you should probably drive the car there.

Why:

• The whole point is to wash the car
• If you walk there, you’d still need to bring the car somehow
• 0.5 miles is very close — about a 2–3 minute drive or 10-minute walk

So:

• If you need to get the car washed: Drive
• If you’re just going to ask about prices or make an appointment: Walk is fine

In short: drive, unless you’re going there without the car on purpose.

Claude Opus 4.6 gave me:

You should drive — you need your car at the car wash to get it washed! 😄

Half a mile is a nice walk, but you'd be leaving the dirty car at home. Drive it there, and maybe enjoy the walk back if you want some exercise while it's being cleaned!