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AI Case Studies

Real companies, real deployments, real sources — across healthcare, finance, retail, logistics, legal, manufacturing, and more. Each one gets an honest verdict: did it hold up, or was it noise?

Figures are attributed to their source and dated. Vendor-reported numbers are labeled as such — a company's own claim, not an independent audit.

Editor's picks

27 deep dives — the full story, what actually happened, and the so-what.

27 case studies

Customer ServiceMixed

700 agents' worth of AI support — until the quality gap showed up

Klarna · 2024–2025

Finance & Legal OpsSignal

COiN reads commercial loan agreements in seconds, not 360,000 hours a year

JPMorgan Chase · 2017–ongoing

Customer ServiceNoise

A chatbot invented a bereavement-fare policy — and a tribunal made the airline honor it

Air Canada · 2022–2024

Healthcare & PharmaSignal

Generative AI screened hundreds of spike-protein mRNA sequences before a single one hit the lab

Moderna · 2020–ongoing

Real EstateNoise

The Zestimate could size up a market. It couldn't safely bet the company's balance sheet on one.

Zillow · 2018–2021

Retail & Supply ChainMixed

An AI agent negotiated payment terms with 2,000+ suppliers in parallel

Walmart · 2025

Software EngineeringMixed

Real productivity gains — smaller and slower to arrive than the pitch decks suggest

GitHub Copilot (multi-org studies) · 2023–2025

CybersecuritySignal

An agent triages security alerts so analysts stop drowning in false positives

Microsoft Security Copilot · 2025–ongoing

Food ServiceNoise

260 chicken nuggets, bacon on ice cream: voice AI met the real drive-thru

McDonald's × IBM · 2021–2024

HR & RecruitingNoise

The hiring model taught itself that being a man was a qualification

Amazon · 2014–2017

Legal ServicesSignal

4,000 lawyers, one AI drafting assistant, kept firmly out of the decision seat

Harvey AI × Allen & Overy · 2023–ongoing

LogisticsSignal

ORION doesn't chat — it just quietly saves 100 million miles a year

UPS · 2013–ongoing

ManufacturingMixed

Factory copilots are graduating into agents that run whole workflows

Siemens · 2025–ongoing

EducationMixed

"AI-first" tripled course output — and nearly cost Duolingo its users' trust

Duolingo · 2025–2026

GovernmentNoise

A self-learning fraud-risk algorithm toppled a government

Dutch Tax Administration · 2013–2021

InsuranceNoise

A claims-denial model with a 90% reversal rate on appeal — and 0.2% of patients ever appealed

UnitedHealthcare · 2019–ongoing

Energy & UtilitiesSignal

Predicting wind 36 hours out made it 20% more valuable to the grid

Google DeepMind · 2019–ongoing

Media & JournalismNoise

77 AI-written finance articles, published quietly — and wrong in more than half

CNET · 2022–2023

Legal ServicesNoise

A lawyer used ChatGPT for research. It invented six court cases. He filed them anyway.

Levidow, Levidow & Oberman (law firm) · 2023

Retail & Supply ChainMixed

Robots made picking faster. Faster made the warehouse floor more dangerous.

Amazon · 2019–ongoing

BankingSignal

3 billion conversations in, Erica is still just a virtual assistant — and that's the point

Bank of America · 2018–ongoing

Advertising & MarketingNoise

Two years running, the AI Christmas ad became the story instead of Christmas

Coca-Cola · 2024–2025

AgricultureSignal

Cameras that tell a weed from a crop cut herbicide use by half, at millions of acres of scale

John Deere · 2021–ongoing

TelecomMixed

A bold agentic-AI goal — 75% fewer service calls — with no independent results yet

T-Mobile × OpenAI · 2025–ongoing

AviationSignal

A decade of predictive-maintenance AI, quietly preventing delays no one notices

easyJet · 2015–ongoing

Automotive & MobilityNoise

A robotaxi dragged a pedestrian 20 feet. The company's video didn't show that part.

GM Cruise · 2023

HospitalityNoise

"The world's first Watson-enabled hotel concierge" — a single lobby robot that quietly vanished

Hilton × IBM Watson · 2016–2018

The Incident Log

The raw feed, not the editorial: live records from the AI Incident Database, a citation-backed public database of real AI deployments causing real harm — pulled fresh on every visit, newest first, unedited. This is what keeps the list growing daily without anyone here inventing a statistic.