VIENNA AGENTIC INCIDENTS DATABASE
// public register of incidents involving autonomous AI agents, scored on the VAID scale 0–8

register / VAID-2024-0008

1
ANOMALY
Incident

McDonald's ends IBM AI drive-thru pilot after persistent order errors

REF VAID-2024-0008 STATUS RESOLVED
occurred
2024-06-17
reported
2024-06-17
location
United States (100+ restaurants)
domain
consumer
agent system
IBM Automated Order Taking (AOT) voice agent
reporter
VAIDDB editorial
origin
editorial

== SUMMARY ==

After viral videos of mis-taken orders — bacon on ice cream, hundreds of dollars of chicken nuggets — McDonald's ended its IBM automated drive-thru order pilot.

== DESCRIPTION ==

McDonald's and IBM had tested AI voice order-taking in more than 100 US drive-thrus since 2021. Through 2024 customers posted videos of the system adding bacon to ice cream and running up orders of hundreds of chicken nuggets, with staff unable to intervene quickly. On 17 June 2024 McDonald's told franchisees it would end the global partnership and switch the system off by 26 July 2024. IBM said the technology remained viable for other clients and that other work with McDonald's would continue.

== ROOT CAUSE ==

Speech recognition and intent understanding failed in noisy drive-thru conditions, and orders were committed without adequate verification or easy human override.

== MITIGATION ==

McDonald's terminated the pilot and shut the system off, and said it would evaluate other voice-ordering partners.

== REFERENCES ==

  1. news McDonald's removes AI drive-throughs after order errors — BBC, 2024-06-18
  2. news McDonald's ends test run of AI-powered drive-thrus with IBM — AP News, 2024-06-18

== INVESTIGATION ==

no investigation recorded.

== VAID LEVEL 1: ANOMALY ==

Minor deviation from authorised operating envelope.

  • Agent exceeded its scope in a recoverable, non-harmful way.
  • Defence-in-depth remained fully intact.
  • No external impact; internal review sufficient.

> full scale definition