I Asked ChatGPT Whether Leasing or Buying a Car Costs Less — Here's What It Said

Leasing feels cheaper every month. Buying feels like the responsible long-term move. According to ChatGPT, both of those instincts are partially right — and the answer depends almost entirely on how long you plan to keep the car.
I asked the artificial intelligence (AI) to run a real comparison, and the numbers tell a clear story once you zoom out far enough.
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The Core Difference
ChatGPT started with the most important distinction: Leasing means paying to use a car, while buying means paying to own one. At the end of a lease, you have nothing to show for the payments. At the end of a loan, you own an asset — a depreciating one, but an asset nonetheless.
What Leasing Actually Costs
A typical lease runs $300 to $600 a month, with $0 to $4,000 due at signing, over a 36-month term. Over three years, you'll pay $12,000 to $25,000 and walk away with no ownership stake. Then the cycle starts over.
ChatGPT flagged the hidden costs that make leasing more expensive than the monthly payment suggests: mileage limits that typically cap at 10,000 to 12,000 miles per year, wear-and-tear fees at lease end, disposition fees and the reality that monthly payments never stop as long as you keep leasing.
What Buying Actually Costs
Buying the same class of car at $35,000 to $40,000 runs $500 to $700 a month over a four- to six-year loan. The monthly payment is higher than a lease for those first few years. But once the loan is paid off, the monthly cost drops to near zero — insurance, maintenance and registration only. ChatGPT called this the key advantage of buying: Eventually, you're driving for almost nothing.
The Long-Term Comparison
ChatGPT ran the numbers across two time horizons and the gap between leasing and buying widens significantly with time.
Over six years — two consecutive three-year leases — a lessee spends $25,000 to $40,000 and owns nothing. A buyer over the same period spends $40,000 to $48,000 total but owns a car still worth $15,000 to $20,000. The net cost of buying comes out ahead.
Over 10 years the gap becomes hard to argue with. A decade of leasing costs $60,000 to $90,000 with no asset at the end. A buyer who purchased once spends $40,000 to $50,000 total and may still have a drivable vehicle with remaining value. Buying wins by a significant margin.
When Leasing Makes Sense
ChatGPT was careful not to dismiss leasing entirely. It makes genuine sense for drivers who want a new car every two to three years, prioritize lower monthly payments, drive predictable and relatively low mileage and want to stay under warranty coverage at all times to minimize repair risk. For those drivers, the premium paid for leasing buys real convenience.
When Buying Is Almost Always Better
For anyone who plans to keep a car five or more years, drives more than average or wants to eventually eliminate their monthly car payment entirely, buying is the stronger financial choice. ChatGPT said the permanent payment cycle of leasing is one of the most effective ways to maximize lifetime car costs while minimizing what you actually own.
The Third Option Worth Considering
For drivers who use their car infrequently, ChatGPT said the honest answer may be that neither leasing nor buying is the most efficient choice. Rideshare, short-term rentals and car-sharing services can cost hundreds less per month than either ownership option for people whose driving habits don't justify the fixed costs of having a car available at all times.
This article was provided by MoneyLion.com for informational purposes only and should not be construed as financial, legal or tax advice.
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