Taco Bell's AI drive-thru: rollout and what the chain said next

Taco Bell uses voice AI from Omilia to take drive-thru orders at more than 890 U.S. restaurants in 38 states, according to a July 2026 announcement. In 2025, after a prank order for 18,000 water cups spread online, the chain's technology chief said Taco Bell was weighing where to use it, and that busy stores may do better with a person.

Since then Taco Bell has added restaurants and signed a new agreement with Omilia. It now describes Omilia as one of several partners working with Yum Brands' own technology platform.

How fast did Taco Bell roll out voice AI?

Date	What was announced	Source
2023	Taco Bell's partnership with Omilia began, according to Omilia.	Omilia release
July 2024	Yum Brands said voice AI was in more than 100 Taco Bell U.S. drive-thrus across 13 states, with hundreds planned by the end of 2024. Five KFC restaurants in Australia were also testing it.	Yum Brands release
November 2024	On Yum's third-quarter call, executives said the system was in more than 300 U.S. stores and had processed more than 2 million orders.	Restaurant Business
March 2025	Yum announced a partnership with Nvidia covering drive-thru and call-center voice AI, with a rollout to 500 restaurants across its brands planned for the second quarter.	Yum Brands release
August 2025	Taco Bell's chief digital and technology officer, Dane Mathews, told The Wall Street Journal the chain was thinking about where to deploy the technology.	Nation's Restaurant News
July 2026	Omilia announced a new agreement to keep deploying its voice AI across Taco Bell's U.S. drive-thrus, now at more than 890 restaurants in 38 states.	Nation's Restaurant News

What happened with the 18,000 water cups order?

A customer at a Taco Bell drive-thru tried to order 18,000 water cups and posted the video under the title "How to bypass AI." Nation's Restaurant News reported in September 2025 that a human employee took over after the glitch and that the video drew tens of millions of views.

In the Wall Street Journal interview that followed, Mathews said the company was thinking about where to use voice AI and where not to, and that busier restaurants may benefit more from a human taking orders. As quoted by Nation's Restaurant News, he said: "I think at the end of the day, it's really, really early. And we feel that. And I think other brands feel that, too."

A Taco Bell spokesperson told the outlet the chain "continues to see the technology as a core part of our future" and remains "focused on learning, improving, and scaling the technology."

Is Taco Bell pulling back from AI at the drive-thru?

We found no public statement that Taco Bell removed voice AI from its stores. The count rose from more than 300 U.S. stores in November 2024 to more than 890 in July 2026, after the August 2025 interview. Since that interview, the chain has described its approach as choosing which restaurants suit the technology.

The tone is more careful than it was in March 2025. At Taco Bell's Live Más Live event that month, Yum Brands technology chief Joe Park said "every aspect of a restaurant can be touched by AI" and said Taco Bell had invested more than $1 billion in these capabilities, Nation's Restaurant News reported.

What does Taco Bell say the results are?

The July 2026 Omilia release makes four claims, without figures:

• Transaction time with voice AI is on par with, and in some cases faster than, traditional order-taking.
• Restaurants using voice AI report higher employee retention than those without it.
• Guest satisfaction is higher, with complaints at parity or better than non-AI locations.
• The system adapts to each restaurant's menu, stock levels and limited-time offers.

These are vendor and company statements. The release does not include the underlying data, the number of orders staff completed, or how the comparison stores were chosen.

Who builds Taco Bell's voice AI?

Omilia is the named drive-thru partner. Taco Bell told Nation's Restaurant News in July 2026 that Omilia is one of several technology partners working with Byte by Yum, the parent company's own technology platform. In Yum's March 2025 release, Nvidia supplies software for voice ordering agents in drive-thrus and call centers, and Yum owns the resulting intelligence.

What should an operator take from Taco Bell's rollout?

1. Plan for pranks. Decide what the system should do with an absurd quantity, an item from another restaurant, or a guest trying to break it. Test those orders before launch.
2. Choose where it runs. Taco Bell's own technology chief suggested the busiest stores may be better served by a person. Pick the hours and lanes to test instead of switching on everywhere.
3. Keep a fast human takeover. At Taco Bell, an employee stepped in during the prank order. Time how long your crew takes to take over, and train for it.
4. Measure against your own baseline. The Omilia claims compare transaction time, complaints and staff retention with stores that do not use voice AI. Record transaction time and complaints for normal weeks before any trial, and track staff turnover over months.
5. Keep the menu current. Omilia says its system follows stock and limited-time offers. Ask how an 86'd item or a new special reaches the lane, and who updates it.

A single store can run these checks too. Maple's drive-thru unit, in early access with a small number of restaurants, lets guests ask for a person at any time and gives the crew a one-press switch that puts the lane back to normal. It is priced per unit with no public price.

Published by Maple. This AI-assisted guide combines Yum Brands and Omilia releases with Nation's Restaurant News and Restaurant Business reporting linked above. It reports what the companies said on the dates shown. It does not test Taco Bell's system, estimate its results, or report a Maple customer result.