McDonald’s AI Bot’s Coding Prowess Surprises Business Leader Linas Beliūnas

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Linas Beliūnas

LinkedIn Author

Building a Safer Internet with AI 🤖 | Scouting for top startups to invest in 💸 | The only newsletter you need for Finance & Tech at 🔔linas.substack.com🔔 | Financial Technology | FinTech | Artificial Intelligence | VC

In a recent LinkedIn post, Linas Beliūnas discusses an unexpected development in the world of artificial intelligence: the surprising coding capabilities of McDonald’s customer support chatbot. Beliūnas shares his astonishment at the bot’s ability to handle complex technical queries, suggesting a potential shift in how we perceive AI applications in everyday services.

Beliūnas recounts an instance where the McDonald’s AI was asked to provide a solution for a common computer science problem. He highlights the bot’s success in delivering a correct answer, moving beyond its expected role of recommending menu items.

“Someone asked a McDonald’s support assistant how to reverse a linked list in Python. It answered correctly.”

This observation leads Beliūnas to reflect on the rapid advancement and widespread integration of AI technologies. He notes the stark contrast between the bot’s advanced functionality and its origin within a fast-food service context.

The Unexpected Competence of Service AI

Linas Beliūnas points out that the AI’s ability to tackle a specific coding challenge, like reversing a linked list in Python, is a significant indicator of AI’s evolving capabilities. This particular question is often used in technical interviews, underscoring the depth of knowledge the McDonald’s bot demonstrated.

According to Beliūnas, this event was entirely unforeseen, adding a touch of humor and wonder to his discovery.

“A fast-food chatbot quietly passing a classic computer science interview question wasn’t on my 2026 bingo card.”

He suggests that this incident might signify a broader trend, hinting that we may be reaching a zenith in current AI development, at least in terms of surprising applications.

AI’s Expanding Role Beyond Core Functionality

Beliūnas’s post implies that AI is no longer confined to specialized industries or tasks. The fact that a customer service bot for a global restaurant chain can engage with sophisticated programming concepts challenges conventional expectations. As Linas Beliūnas puts it:

“We’re definitely at peak AI now.”

While expressing surprise, Beliūnas also acknowledges the serious implications of such advancements. The development suggests that AI tools, even those integrated into seemingly simple services, are becoming increasingly powerful and versatile. This could pave the way for more efficient customer support and a wider range of AI-driven functionalities across various sectors.

In a concluding remark, Beliūnas directs readers to a separate resource where he details how he leverages AI for productivity, indicating his personal engagement with and belief in the transformative potential of these technologies, even as he marvels at unexpected demonstrations like the McDonald’s bot.

📝 About This Content

This article is based on insights shared by Linas Beliūnas on LinkedIn.

📅 Originally posted on April 20, 2026 | View original post on LinkedIn →