The Robot at the Drive-Thru Window Is Back, and This Time It Might Stick
After a rocky first attempt, fast-food chains are quietly rolling AI voice ordering back out to millions of customers. A few are winning. A few are still figuring it out.
Key points
- Roughly 6 percent of US fast-food drive-thrus now use AI voice ordering in 2025, up from 4 percent in 2024.
- Taco Bell has deployed AI at 890 drive-thru lanes, more than 10 percent of its US locations.
- White Castle reports its AI system, named "Julia", shaves an average of 21 seconds off service time compared to the industry standard.
- McDonald's pulled its first AI drive-thru programme in 2024 but is now testing a new system with Google at five US locations.
- Chains including Chick-fil-A, Dutch Bros and 7Brew have chosen not to use AI ordering, citing the value of human interaction.
Kristen Charpentier knew something was off the moment she pulled into a Dairy Queen drive-thru in Cary, North Carolina. The voice on the speaker was too polite. Too smooth. Every sentence ended with a "please" or a "thank you."
She had worked that exact job as a teenager. She asked the worker at the pickup window directly: was that a robot?
It was.
Charpentier was not alone. As reported by Wired, thousands of US drive-thru customers have placed orders with AI voice systems, often without knowing it until the food arrived. An AI voice agent, software that listens to your order and responds in real time without a human on the other end, now greets customers at roughly 6 percent of fast-food drive-thrus in the country, up from 4 percent just two years ago.
How did we get here?
McDonald's set this in motion in 2019 when it bought a drive-thru AI startup and built an in-house tech division around it. Other chains rushed to follow. The pitch was straightforward: faster service, lower costs, fewer errors.
The reality was messier.
Social media filled with clips of AI systems gone wrong. One viral video showed a McDonald's AI adding 260 Chicken McNuggets to a single order. Another caught an AI adding bacon to an ice cream. Taco Bell's system reportedly handled an order for 18,000 cups of water without complaint.
Beyond the viral disasters, the day-to-day numbers were underwhelming. Research firm Intouch Insight found that early AI drive-thrus scored lower than humans on friendliness and order accuracy. Accents and dialects tripped up the software regularly. McDonald's eventually sold its AI division to IBM and shut the programme down entirely. Del Taco rolled back its test.
So why is it growing again?
Because a few chains never stopped, and the technology improved while they kept at it.
White Castle has run its AI system, a voice agent called "Julia", for four years through a partnership with SoundHound AI, a voice recognition company. The chain says Julia has made employee shifts run more smoothly and, on average, cuts 21 seconds from service time. White Castle also cracked Fortune's top 20 list of best workplaces in retail last year.
Taco Bell now runs AI at 890 lanes. Dairy Queen is expanding the technology across 25 states, with plans to eventually cover every location. McDonald's is trying again, this time with Google, at five US test sites. The new system takes orders in both English and Spanish.
| Chain | AI scope | Partner |
|---|---|---|
| Taco Bell | 890 lanes (10%+ of US locations) | Nvidia, Omilia |
| Dairy Queen | 25 states, national rollout planned | Presto |
| White Castle | 12% of locations, all new sites | SoundHound |
| McDonald's | 5 US test locations (2025) |
What does this mean for customers?
For most people, the immediate change is small: a very polite synthetic voice takes your order instead of a person. You can still ask for a human at White Castle at any time.
The bigger question is what happens to jobs. Fast-food executives say AI is not replacing workers; the people previously on headsets are being reassigned to other tasks in the kitchen or at the window. Employment numbers at White Castle have held steady. Replacing human cooks and cashiers with machines is far harder than replacing one voice on a speaker.
Not every chain is convinced the trade-off is worth it. Chick-fil-A consistently tops customer satisfaction surveys for drive-thru friendliness and has never moved toward AI ordering. Coffee chains Dutch Bros and 7Brew have made the same call. "Hospitality starts with genuine human connection," 7Brew's chief marketing officer told Wired.
Some customers agree. "I want to be able to say hi to a human being," one Virginia Wendy's customer told the outlet, after an AI voice left him waiting for a person who never came.
The chains scaling up are betting that most customers will get used to it quickly. Given that only one in seventeen drive-thrus currently uses the technology, there are a lot of first encounters still ahead.
Common questions
How can you tell if an AI is taking your order?
The voice will sound smooth and consistently pleasant, with very little background noise or hesitation. If you are unsure, you can simply ask the speaker whether you are speaking to a person or an automated system.
Will this cost people their jobs?
So far the evidence says no, at least not directly. Chains report that workers previously on headsets are moved to other roles. Replacing the broader workforce with machines is a much harder problem that the industry has not solved.
