Key takeaways
- Millennials trust and use AI in customer service more than any other generation, including Gen Z, according to delight.ai's 2026 AI Index.
- 45% of millennials use AI tools daily, compared with 33% of Gen Z, 33% of Gen X, and 13% of Boomers.
- The primary divide in AI trust is generational, separating Millennials and Gen Z from the more skeptical Gen X and Baby Boomers.
Gen Z grew up with a phone in one hand and an AI chatbot one tap away. That should make Gen Z the generation most ready to let AI handle a customer service problem.
The data says otherwise. According to delight.ai's 2026 AI Index, a survey of 1,000 US consumers fielded March 17 to 23, 2026, millennials trust AI more than Gen Z once the question moves from casual AI use to actual customer service. Millennials use AI tools more often, hold a more positive view of AI, and feel more comfortable letting AI resolve a request on its own than any other generation surveyed.
That finding flips a common assumption about who drives AI adoption. It also points to who is setting the bar the rest of the market has to clear.
How do consumers feel about AI customer service in 2026?
Here's the overall picture before the generational breakdown. 71% of US consumers engaged with AI customer service in the past 12 months, and 57% came away with a positive experience. Less than half, 48%, said AI made it easier to resolve their issue, and just 33% felt more valued as a customer as a result.
Delight's 2026 AI Index puts the overall AI customer service experience at 51 out of 100. People have adopted AI faster than they've learned to trust it, and that gap between adoption and trust shows up differently by generation.
Which generation trusts AI customer service the most?
Millennials come out on top across every measure delight.ai's 2026 AI Index tracked. 45% of millennials use AI tools daily, well ahead of Gen Z and Gen X, who are tied at 33%, and far ahead of Boomers at 13%. Millennials also hold the most favorable attitude toward AI of any generation, and the highest comfort level with AI handling a routine customer service task on its own.
63% of millennials say they're comfortable with AI handling routine customer service tasks independently, the highest comfort level of any generation surveyed. For a business deciding how much autonomy to give an AI agent, that's the number worth watching. Not who uses AI the most, but who trusts it enough to let it finish the job without a human standing by.
Why millennials lead in AI trust
The obvious assumption is that a generation raised on smartphones would trust AI the most. The data suggests something closer to the opposite: familiarity with a problem, not familiarity with a device, predicts trust.
Millennials remember what customer service looked like before AI. Hold music, transferred calls, and repeating an account number to yet another agent are recent memories. Against that baseline, an AI agent that resolves a request in one pass reads as an upgrade.
Gen Z's relationship with AI runs the other way. Many grew up watching AI chatbots fail in public and hearing about AI as something to question by default. Gallup's research on Gen Z found their AI use has stayed steady over the past year, while their excitement and hopefulness about it have declined.
Gen Z isn't uniformly behind, though. A 2025 Future Commerce survey found 23% of Gen Z and 27% of millennials trust AI product recommendations more than human ones, with both generations using AI shopping tools at similar rates. The gap opens specifically around autonomy in customer service, not around AI use in general.
Where Gen X and Baby Boomers stand
The bigger trust gap in AI customer service isn't between millennials and Gen Z. It's between both of them and the two older generations. Gen X and Boomers use AI daily at far lower rates, 33% and 13%, and hold far less positive attitudes toward it, 17% and 8% very positive.
36% of Gen X and 48% of Boomers say they may never feel comfortable with a fully independent AI agent running customer service on its own. Almost half of Boomers, in other words, aren't waiting for better AI. They've already decided their answer is no. [Source: delight.ai's 2026 AI Index]
What tasks can AI complete more efficiently than humans?
The generational gap looks different once tasks are split by stakes. Across delight.ai's 2026 AI Index, routine requests favor AI. High-stakes requests still favor a human, regardless of generation.
- Checking an order status: 49% prefer AI, 34% prefer a human.
- Disputing a transaction: 65% prefer a human, 22% prefer AI.
- Asking about symptoms or treatment: 70% prefer a human, 20% prefer AI.
The pattern holds across every generation surveyed, millennials and Gen Z included. People don't want an AI to decide who's right in a billing dispute or offer medical guidance. They want AI to move fast on tasks that don't carry much risk if something small goes wrong.
Delight.ai's 2026 AI Index breaks the overall experience into five pillars, scored out of 100. None of them break away from the pack, which fits with the narrative of a technology that’s still proving itself.
- Brand Alignment: 57
- Comfort with Autonomy: 52
- Resolution Effectiveness: 51
- Trust & Confidence: 49
- Emotional Resonance: 46
Comfort with Autonomy sits second from the top, just above the overall trust score. That's the pillar the generational differences run through most directly; how much they're willing to let it do without asking permission first.
What builds AI trust across every generation?
Every generation shares the same worries about letting AI act on its own:
- Mistakes or incorrect decisions: 72% cite this as a top concern.
- Data privacy and security: 62% cite this as a top concern.
- Losing control over what AI does: 56% cite this as a top concern.
Those concerns point directly to what would influence people's opinions on AI. delight.ai's 2026 AI Index asked what would increase trust in an autonomous AI agent, and the answers line up closely with the concerns above.
- Data privacy and security safeguards would increase trust for 84% of consumers.
- Human oversight of autonomous agents would increase trust for 65%.
- The power to stop or override the AI at any time would increase trust for 59%.
- Approving AI actions before they happen would increase trust for 57%.
- The ability to correct mistakes and reverse decisions would increase trust for 47%.
Those five levers, in order, describe a specific kind of infrastructure. A person can see what the AI is about to do, approve it in advance, and override or undo it if something goes wrong.
Delight.ai calls that governance and observability layer Trust OS, because trust in an autonomous agent gets built through those controls, not through the AI simply getting smarter.
What does this mean for businesses building AI customer experiences?
Gartner found 91% of customer service leaders feel pressure to implement AI in 2026. Whichever generation your customers belong to, there’s real pressure to deploy AI now. What's still a choice is how much autonomy to give it.
Millennials are the current north star for what a good AI customer service experience feels like. If your AI experience doesn't clear the bar that millennials already expect, it will struggle with every generation coming up behind them, especially the ones who are already skeptical.
One lever shows up across every generation, not just millennials. 70% of consumers say they'd feel more delighted if AI simply remembered their prior interactions instead of starting over every time.
That's the gap a branded AI concierge is meant to close for your customers. It carries context across chat, voice, and every other channel someone uses, instead of treating each conversation as the first one.
Delight.ai is built on Sendbird's infrastructure for exactly that kind of continuity. It combines long-term conversational memory, omnichannel presence, and the same Trust OS controls over autonomy that consumers say they want.
In closing
Yes, millennials trust AI more than Gen Z by a wide margin, at least once the AI is handling an actual customer service problem instead of drafting an email. The open question is whether Gen X, Boomers, and even Gen Z eventually follow the millennials’ path, or whether comfort with full AI autonomy stays generational for good.
For the full breakdown of all five trust pillars, including how comfort with autonomy splits by task and channel, see the complete 2026 Delight AI Index.
