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Taco Bell's AI Drive-Thru Plan Gets Caught Up On Trolls and Glitches 127

Taco Bell's rollout of AI-powered drive-thru assistants has run into problems, with glitches and trolls gaming the system by making absurd orders like thousands of water cups. It's so bad that the company is reconsidering where and how to deploy the tech, admitting it may not work well in "super busy" restaurants. "We're learning a lot, I'm going to be honest with you," Dane Mathews, Taco Bell's chief digital and technology officer, told the WSJ. "I think like everybody, sometimes it lets me down, but sometimes it really surprises me." The Verge reports: Since announcing plans to put AI in the drive-thru last year, Taco Bell has deployed the tech in over 500 locations across the US, according to the WSJ. Other fast-food chains are experimenting with AI, too, including McDonald's, Wendy's, and White Castle. Mathews tells the outlet that while the company still plans on pushing ahead with AI voice technology and evaluating the data, he's discovered that using AI exclusively in certain situations, like a drive-thru for "super busy restaurants with long lines," might not be such a great idea after all.
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Taco Bell's AI Drive-Thru Plan Gets Caught Up On Trolls and Glitches

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  • by Pinky's Brain ( 1158667 ) on Friday August 29, 2025 @05:29AM (#65623774)

    So sometimes it lets him down and sometimes he's surprised at the new and ridiculous ways it lets him down.

    No one could have seen this coming without way more common sense than a CTO.

    • by ls671 ( 1122017 ) on Friday August 29, 2025 @05:49AM (#65623788) Homepage

      Indeed. The funny part is:
      (with) "trolls gaming the system"

      How could you not plan for that in advance and make it part of your test cases?

      • Re: (Score:2, Funny)

        by mjwx ( 966435 )

        Indeed. The funny part is:
        (with) "trolls gaming the system"

        How could you not plan for that in advance and make it part of your test cases?

        Given Taco Bell's clientele, this could be a description of physical characteristics rather than behaviour.

        Serious answer, I think we all know the MBAs and techbros thought it would just work and they lack the ingenuity of one drunk redneck jonesing for some nachos.

      • by eth1 ( 94901 )

        Indeed. The funny part is:
        (with) "trolls gaming the system"

        How could you not plan for that in advance and make it part of your test cases?

        Because you can't compete with the efficiency with which the world creates idiots and assholes.

      • by thegarbz ( 1787294 ) on Friday August 29, 2025 @10:09AM (#65624312)

        How could you not plan for that in advance and make it part of your test cases?

        A software tester walks into a bar, runs into a bar, crawls into a bar, dances into a bar, orders a beer, 2 beers, 0 beers, 99999 beers, a lizard in a beer glass, -1 beers, qwerty beers. Testing complete.

        A user walks into the bar and asks where the bathroom is.

        The bar goes up in flames.

      • by skam240 ( 789197 )

        To be fair it's hard to think of everything people will do when you open something to the general public. I worked in game QA after high school for a few years and one of the challenges was trying to think of everything the general public might do when playing a game. Taco Bell may have even done some testing on pranks customers might do, they just didn't think of these specific pranks. In the end it's kind of impossible to predict everything people will do once you release something like this out into the

      • by gweihir ( 88907 )

        Simple: They bought this. And the AI scammers have no interest into giving their customers realistic cost and performance data.

    • by fuzzyfuzzyfungus ( 1223518 ) on Friday August 29, 2025 @06:05AM (#65623816) Journal
      What seems frankly depressing is that a C-level would think(and quite possibly have reason to think) that that sort of aw-shucks-lessons-are-being-learned-about-things-nobody-could-have-predicted tone is exonerating outside of a fairly tiny, low stakes, test program somewhere.

      It's not like having somebody take a poke at connecting a system that is supposed to be pretty OK-ish at natural language processing and text-to-speech to an ordering system is particularly unreasonable; at the scale they are operating probably more unreasonable not to; but "well, it's live in 500 locations and we've learned that a technology synonymous with prompt injections and a lack of common sense so profound it's almost a category error to suggest it could have any isn't super robust..." makes you sound unbelievably dumb and risk insensitive.
      • by leonbev ( 111395 )

        Well... considering that they're trying to use these AI assistants to cut down on head count and fire their co-workers, I wouldn't be shocked at all to learn that their friends are looking for way to exploit the system. If anything, Taco Bell's technology team should be expecting that.

        • and more should do it!

        • by Targon ( 17348 ) on Friday August 29, 2025 @07:37AM (#65623976)

          The problem is the language barrier often gets in the way. How many times have you had a problem where someone who does not speak English is the one you are talking with when you are trying to order your food? You ask for something BASIC, not trying to play mind games with them or anything, and they don't understand what you want to order. That is the situation that makes these AI order systems a good idea. Know the customer base, and the employees, and if you can eliminate the language barrier with technology, that's a positive thing.

          Unless having an employee who has their entire job involve translating or dealing with the language barrier, the AI won't replace too many jobs in this case.

          • by AuMatar ( 183847 )

            In 45 years of living and eating at cheap restaurants, I've never had this problem when going to one in the United States. Or any other country where English was the native language. Why? Because they may hire non-english speakers in the back for kitchens, dishwasher, etc they make sure cashiers and waiters speak english, and they talk to the people in back. So it's an utter non-issue. It may have niche usecases in places with large international tourist crowds, but even then you generally need to tell

            • by dgatwood ( 11270 )

              In 45 years of living and eating at cheap restaurants, I've never had this problem when going to one in the United States. Or any other country where English was the native language. Why? Because they may hire non-english speakers in the back for kitchens, dishwasher, etc they make sure cashiers and waiters speak english, and they talk to the people in back.

              You've never ordered fast food through a drive-thru in California, apparently. The number of times I've had to repeat things half a dozen times is quite high, and although some of that is the sh*tty intercom system they use, having a language barrier makes the garbled, muffled sound into a much bigger problem than it would be if both ends of the conversation were native speakers of the same language. It doesn't prevent ordering, but it does slow things down quite a bit. Even if all the AI does is turn wh

          • I can't say I've ever had that problem. When it comes to quantity numbers between 1 and 10 and names of foods, these are things that people pick up on quickly - and often the name of the food is similar in their own language anyway. Or the English name is at least recognizable to a native speaker of the other language.

            Customizing or special instructions can be hard, but it's also really hard for an LLM too.

          • by havana9 ( 101033 )
            I'm Italian and live in Italy. I like Chinese food and I never had a problem to order in a Chinese restaurant, because all the waiters have a basic knowledge of Italian and anyway the menus are always dual language and with a number near the food. Some restaurant give you an order card where you mark what you want. You can solve the problem literally with a sheet of paper and a pencil: no AI has to be involved.
          • by antdude ( 79039 )

            People still use BASIC today? :P

    • This is pretty much a real life version of the "QA Engineer walks into a bar and orders -1 beers"
  • ... what would you normally do if someone orders 18000 water cups? Unless it's a robot filling the cups too, I think you're gonna be fine.
    • Re:I mean ... (Score:4, Insightful)

      by Anonymous Coward on Friday August 29, 2025 @06:01AM (#65623808)

      Their stocking system might try to reorder their entire complement of cups. An automated QA system might ding somebody for not filling the order. Use your imagination -- there are lots of ways this could go wrong as they increase automation.

      • by Targon ( 17348 )

        You are thinking they have a system that "does everything". If the AI system is there primarily to handle the order process, then anything like this wouldn't do more than just take the orders in whatever language the customer speaks, and for the food prep, it's being done by people who don't necessarily speak the same language.

        • But presumably this AI system is creating order tickets and those do ultimately feed into supply chain stuff. I don't work in a taco field, but i've seen all kinds of weird knock on effects from people fat-fingering numbers on factory systems. I'm sure there's a process to go back and edit the order ticket to remove that number, but you have to ask yourself if a taco bell employee cares enough. They'll probably neither fill 1800 water cups nor edit the ticket - they'll just hand out one and laugh about it
    • It sure as hell looks stupid coming through the computer, especially if the poor taco flipper filling the order has to manually refuse every cup

      • They just have to hit the minus key on the order cart 17,999 times. Or delete the entire row and re-add. Oh but because of an overflow condition, they might actually have to hit the + key.

    • ... what would you normally do if someone orders 18000 water cups? Unless it's a robot filling the cups too, I think you're gonna be fine.

      Unless the store manager happens to also be a Tik Tok influencer who wants to turn filling 18000 water cups into some kind of "viral" stunt.

      8 hours and a $2,000 water bill later, they'll realize the 27,000 views wasn't nearly enough to stop off a well-justified firing.

      Unless the district manager happens to also be a..

      (Try not to forgot the attention-whoring world we live in.)

      • 8 hours and a $2,000 water bill later

        Damn, do you live in the middle of the Sahara Desert or something? If the cups are 16 oz each, 18,000 cups would be 2250 gallons. I think that would cost me something like $60.

        • by cruff ( 171569 )
          And 2250 gallons is about 300 cu ft, which is probably enough to flood a small fast food restaurant to a depth of 1 foot (swag)?
    • I'd be curious if there is some asymmetry in their systems because of the enthusiasm of retail type outfits for trying to keep potential damage from basically untrusted employees to a minimum.

      You see it a lot in grocery stores, and big box/department store setups where there are either certain POS operations that lock up and require manager approval(seems most common if they need to void a mis-scan over a certain value or multiple mis-scans or customer-decides-they-don't-want-it changes of order; or if s
    • The LLM probaly has no data on that. There is a great article about how LLMs are most trained in "right" actions, but not in correcting wrong ones. [understandingai.org]. So these LLMs do not develop craftsmanship. Remember, real craftsmanship is not about doing everything right, but about understanding and experience that allow you to fix mistakes.
    • ... what would you normally do if someone orders 18000 water cups? Unless it's a robot filling the cups too, I think you're gonna be fine.

      In that case, the system responded properly by passing the customer to a human; which was the whole point of the video.

    • ... what would you normally do if someone orders 18000 water cups? Unless it's a robot filling the cups too, I think you're gonna be fine.

      I'm not sure if it's still the case, but rather hilariously McDonald's app would actually allow you to order a hamburger and remove literally everything through the customization options. Then of course, you'd be charged for and receive an empty box.

      The way it's supposed to work is that a human absolutely does have the ability to cancel absurd order requests like those, but sometimes they just don't care. In the case of thousands of water cups though, that's likely to be filled the same way my local Chic

  • Bojangles (Score:5, Interesting)

    by Dan East ( 318230 ) on Friday August 29, 2025 @06:09AM (#65623820) Journal

    Bojangles (primarily a southern chain in VA, NC, SC and GA) have been using AI at the drive throughs and it works great. I don't know how immune it is to trolling, because I'm not an ass, but it works great for normal people.

    • It honestly wouldn't surprise me if their "AI" was a mechanical turk.

      • by taustin ( 171655 )

        It probably wouldn't surprise the MBAs either, but they don't care as long as it's cheaper than employees.

    • Isn't proclaiming one's self to be a non-ass kind of an assy thing to do?

  • by dohzer ( 867770 )

    donald_glover_good.gif

  • by DeplorableCodeMonkey ( 4828467 ) on Friday August 29, 2025 @06:40AM (#65623874)

    Didn't train the AI model to have sane limits for free items, didn't write business logic to limit what the AI model could send to the ordering system. No different than that team that recently posted about losing its whole production database when their AI agent panicked during a deployment and dropped the production database. Not the fault of AI. Just the fault of unprofessional people who mistake a barely working proof of concept that is only ready for internal stakeholder demos for something ready to be unleashed on the public.

    (WRT the database story, this is... why you use something like Liquibase, Flyway, Rails transitions, etc. not some dumbass crap like "Claude, uses these credentials to go automagically update my database based on the entity objects in my code base.")

    • Would be more sane to just not have free items.

      Even one penny is better than free.

      • by taustin ( 171655 )

        You really believe people are going to go to a drive thru that charges them per napkin, per straw, per bag? Not that the MBAs wouldn't love to if they could.

      • No free items on menu, define threshold for human intervention, say $60-75? Once an order gets to a certain size, AI should hand it off. AI is probably great for situations where folks say things like "the #3 combo, large please"

  • just make it go into beavis and butthead mode when people start fucking with it.

  • Idiot proofing (Score:4, Insightful)

    by evil_aaronm ( 671521 ) on Friday August 29, 2025 @07:53AM (#65623990)
    Idiot proofing is hard, because we have so many, and they're kind of clever. Every time you shut off one avenue, they create a new foot path.
    • by syn3rg ( 530741 )
      "Two things are infinite: the universe and human stupidity, and I'm not sure about the universe".
      -- Albert Einstein
  • Talk about shooting oneself in the foot. With employing fewer teenagers being the goal, and hence the teenagers interacting with the public less, where are they going to get their future competent managers from? You know, the managers who have to deal with the public's problems/complaints? Or are they going to hire pricey, off-the-street, middle-management types who know nothing about that business?
  • by sabbede ( 2678435 ) on Friday August 29, 2025 @08:21AM (#65624066)
    Going inside my local Taco Bell, you're presented with touchscreen kiosks and exactly zero cashiers. I don't want to stand there doing a cashier's job, I want to tell a cashier my order and pay them. It's faster and easier for the customer (in my experience at least) to go through a living cashier.

    Oh, and stop skimping on the cheese you cheap jerks!

    • by taustin ( 171655 )

      Every Taco Bell I've been in recently will, in fact, have a person take your order. If you're patient enough for them to notice you. Fastest way seems to be to stand at the kiosk on the counter and act confused and irritated. But overall, I do agree.

      (McDonald's, on the hand, has apparently listened to the feedback on the many ways their kiosks suck, and they're actually not too bad now. You have all the same options as the cashier for each item, and it is actually faster about 99% of the time because there

      • Taco Bell here they tell you to use the kiosk even if you stand at the register and even if you tell them you're paying cash so they'll have to use the register anyway. It's really stupid. The kiosk is still very slow even entering a regular order you've memorized the sequence for. 1-2min vs less than 10s for an employee.
        • by taustin ( 171655 )

          Franchises tend to vary a lot by owner. McDonald's exerts a lot of control over practices in each location, but most other chains don't.

          I agree that Taco Bell's kiosk system isn't all that well designed.

      • Yesterday Wendy's told me that they didn't have a cashier working. Taco Bell told me that they don't have them at all (I call BS, I can see the register).

        And do you realize that you basically just said that the cashiers are too dumb to work a register that is essentially a smaller kiosk, so it is better for everyone to use the kiosks despite the general population including not only every cashier, but also the people too dumb to be cashiers?

    • Fake news, didnt know you talk to a real person scrolling mindlessly on Amazon's site and checking out.
    • When asked to use the Kiosk, I clearly state out loud "The recent study I read shows that nearly 100% of restaurant screens contain fecal matter. I'm not touching that!" and everyone in the place freezes up for a moment. One place even handed me a pair of rubber gloves to place the order.
      Seriously, just take my order. Sheesh.

    • I don't want to stand there doing a cashier's job

      I wonder, do you apply that logic everywhere and completely refuse to do any online transactions? You're not doing a cashier's job, the cashier's job by nature is a redundant extra step, one that may introduce error into the process causing your order to get fucked up.

      But that said I do support shops having one cashier for you and others like you. We need options, and the options should be diverse because you and I have different desires. I don't want to stand in line because it's not financially viable to

      • The cashier's job is to take the order and payment. I don't see how that is at all redundant unless you are accustomed to shouting orders at the chefs and leaving money on the counter. If I am the one entering my order and payment into their system, I'm doing the cashier's job. For free. Not even a discount on the order.
    • by tlhIngan ( 30335 )

      Going inside my local Taco Bell, you're presented with touchscreen kiosks and exactly zero cashiers. I don't want to stand there doing a cashier's job, I want to tell a cashier my order and pay them. It's faster and easier for the customer (in my experience at least) to go through a living cashier.

      Oh, and stop skimping on the cheese you cheap jerks!

      I like the kiosks, at least at McDonalds. Because I can just walk up, select what I want and add the customization I want to the order then pay by card right the

      • Then we are enemies! Down with you and your damn kiosks!

        Why should I be doing a cashier's job for free when I'm already tired from doing my own job? It isn't more accurate - most of the mistakes happen after the order is placed and they don't have robots making the food (yet).

        I was at Wendy's yesterday and had to go in (my window stopped rolling down). I always order my burgers "no cheese, ketchup only". It took MUCH longer to go through all the options and remove things than it would have taken t

    • But real people sometimes "forget" to present you with all the up sells... I mean value add options... or whatever they're masking it as this quarter.

      • Yeah, they also want to be paid for every hour they work, which I suspect is the main reason for this. "Oh, I don't have a cashier today". Really?

        Maybe if we all just go back to standing at the counter and then complain when they say to use a kiosk, they'll stop this. I'm just not that interested in doing a cashier's job when I'm on the way home from doing my own.

  • Surely that should trigger the firing of the chief digital and technology officer?

  • by NobleNobbler ( 9626406 ) on Friday August 29, 2025 @08:40AM (#65624104)

    My experience with this, and no I have 0 knowledge of the situation, but that never stopped anyone in the internet before-- he's calling it an "oh shucks" situation to save the face of the superior that pushed hard on this (and that he yes-man'd into reality).

    "Who could've known" prevents ego bruising the little tyrant who is flawless above you and thus gets your head off the chopping block to pay for their mistakes.

    Or not.

  • It takes Apple level courage to fuck up ordering at your large restaurant chain. Dane Mathews is a risk taker, but apparently not very good at judging risk.

  • Like, people are spending money on this bullshit, and it makes no sense.

  • Our local Taco Bell isn't using this, so I can't really speak on accuracy there, but Bojangles is using an AI order taker and while I haven't intentionally tried to trip it up, I will say that as a customer just ordering, its been very, very accurate. Probably MORE accurate than a human order taker for me as it doesn't get complacent or ignore things if its tired and what not.

    A lot of times though even at other places I've started ordering through the app, even if I'm already in the drive thru line, I'll p

  • If I pull up to a Taco Bell and it has one of these, I just drive off.

God helps them that themselves. -- Benjamin Franklin, "Poor Richard's Almanac"

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