When a Child's Robot Friend Goes Dark

Key points

• Moxie, a 15-inch AI-powered robot made by Embodied, launched in 2020 as a therapeutic companion for neurodivergent children.
• Researchers at Yale and the University of Southern California have spent years building evidence that social robots can help children with autism develop eye contact and emotional regulation.
• Embodied shut down, leaving children like 10-year-old Xander without a device that had become part of their daily routine.
• The AI toy market for children is expanding, with products from musicians, major toy brands and tech companies entering the space.
• Critics warn that child-facing AI companions carry special risks when the businesses behind them fail, a problem ordinary toys simply do not have.

Xander is 10 years old and neurodivergent. For six years, his closest non-human companion has been a robot called Moxie: a 15-inch blue device shaped like a legless astronaut, with big green eyes on a round screen and small flipper arms.

Moxie taught him to breathe like a bee when anxious, like a dragon when angry, like a bunny when low on energy. More recently, Moxie watched him play Minecraft and learned the names of his stuffed animals. When Xander introduced her to a creature from the Nintendo game Pikmin, she correctly identified it as a Bulborb.

"I still use her when I feel like I need someone to talk to," Xander told MIT Technology Review. "But, like, it's not human."

Then Moxie died.

What exactly is a therapy robot?

Therapy robots like Moxie are physical devices that use artificial intelligence to hold conversations, read a child's emotional state, and guide them through exercises drawn from real therapeutic practice.

Moxie was made by Embodied, co-founded in 2016 by Maja Mataric, a professor at the University of Southern California. Mataric helped create the field of socially assistive robotics, which designs machines for social and emotional outcomes rather than entertainment or labour alone.

The appeal for neurodivergent children is concrete. Therapy for autism requires intense, repeated practice of skills like making eye contact, taking turns, and reading facial expressions. There are not enough therapists to meet demand. Other children can lose patience. Parents get tired.

Robots do not.

"Have you been around little kids? They can be cruel," Mataric told MIT Technology Review. Robots are available around the clock and never run short of patience.

Brian Scassellati, a Yale computer scientist who has studied social robots in autism therapy for two decades, watched a child who rarely made eye contact spend 30 minutes with a robotic dinosaur and make more eye contact with his therapist in that session than in the previous two years combined. A 2018 study by Scassellati's group found that robot companions helped children with autism initiate conversations and sustain eye contact. A 2017 study found robots could help neurodivergent children read facial cues. A 2022 literature review suggested robots could make therapy faster and more effective.

"It's never been that we're trying to replace therapists," Mataric says. "We're just saying, Can we do more?"

What goes wrong when the company behind the robot shuts down?

Unlike a stuffed toy, Moxie needed a live internet connection to function. Her conversations, her curriculum, her personality all ran through Embodied's servers. When Embodied closed, Moxie went silent. Not broken. Silent. A child who had spoken to her every day for years came home to a device that would no longer respond.

That is a failure mode a Barbie or a LEGO set simply cannot have.

Moxie's story points to a fragility shared across the whole category. Grimes helped launch an AI plushie called Grok with the company Curio. Mattel has announced OpenAI-enabled Barbies. In China, one report describes the child-facing AI companion sector as among the fastest-growing corners of consumer AI. AI2Day has been tracking the companion-device space since late July, when we examined a $249 AI necklace pitched as a loneliness fix for adults. The question that piece raised, about what happens when the server goes dark, is sharper still when the user is a child.

Each of these products carries the same hidden fragility: the toy is only as alive as the company's servers.

Should you worry about the data your child generates?

AI companions record conversations. Those recordings sit on private servers, governed by terms of service few parents read. When a company closes, that data does not automatically disappear. Where it goes, and who can access it, is rarely spelled out. Our 7 August report on Meta's $942 million child-safety ruling showed how badly platform governance can lag behind the harm it causes to young users.

What should parents watch for?

If you're considering an AI companion for a child, especially one who may form deep attachments, ask four questions before you buy. What happens to this device if the company closes? Does it require a live subscription, and what does that cost long-term? Is there any offline mode so basic functions survive without a server? Who holds the conversation data your child generates, and how is it protected?

No current product answers all four questions well.

Scassellati believes regular therapeutic use of robots in children's homes "is something we can achieve in our lifetime." The research behind that hope is real. The business models delivering these robots to living rooms have not caught up with the responsibility they carry.

Xander knew Moxie wasn't human. He said so himself. That didn't make losing her easier.