How AI-first interfaces are reshaping commerce, trade-ins, and the future of user experience
People don't wake up wanting to learn a new user interface. They wake up wanting to get something done, using whatever tool they already live in.
That simple truth is driving a fundamental shift in how we think about software design, customer experience, and digital commerce. At SELLIT9, we're not just observing this shift; we're testing it in real time.

We recently ran an experiment at SELLIT9 where we let Claude AI become the interface to book a trade-in.
No app download required, just tell us what you want, and we'll make it happen.
The results? Users could complete trade-ins without learning our platform, without navigating menus, and without friction. They simply stated what they wanted to do, and the AI handled the rest.
Now imagine this not only in a command-line interface, but embedded directly in ChatGPT, Google Gemini, Claude, or whichever AI tool you're already using daily.
Look, we're not trying to eliminate frontends entirely. We're just recognizing what's actually happening:
If this reality holds true, then commerce (and specifically trade-ins) must become infrastructure, not screens.
Traditional e-commerce platforms are built around the assumption that users will visit your website, navigate your menus, and complete actions within your branded experience. But what happens when users never leave their AI assistant?
The answer: your product needs to work through AI, not alongside it.
At SELLIT9, we're building exactly that. Our trade-in platform is designed to function as a software layer that can plug into any AI interface, any merchant platform, any customer touchpoint without requiring users to learn something new.

Our Claude experiment is just our first test. Our real bet is bigger:
Experiences that work everywhere, through any AI, without rebuilding the product each time.
This means:
Not quite. But they're no longer the center of gravity.
Beautiful, intuitive interfaces still matter for brand identity, for certain complex workflows, for moments when visual design enhances understanding. But the assumption that every interaction must happen within a custom-built frontend? That's shifting fast.
The companies that will win in this new era are those that can deliver value wherever users already are, rather than demanding users come to them.
At SELLIT9, our platform turns used household items into instant liquidity, either as direct payouts or instant store credit, all while being flexible enough to work through any interface, any AI, any channel.
We believe the future of commerce is:
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We're curious to hear where others land on this.
Are we heading toward AI-first interfaces as the dominant paradigm? Or is traditional UI design still king?
One thing is certain: the landscape is changing fast. And the companies that adapt their infrastructure (not just their interfaces) will be the ones that thrive.
Want to see how AI-native commerce works in action? Learn more about SELLIT9's trade-in platform and how to trade in your items responsibly.