Cal AI’s 19-year-old founder just raised $10M for his new AI startup

A new wearable AI assistant launches with a $179 band, aiming to consolidate daily utility apps and reduce screen time.

Zach Yadegari, the 19-year-old founder of the acquired calorie tracking app Cal AI, has launched a new AI startup named Persona. The company has already secured $10 million in funding, with Vine Ventures leading the round, joined by Z Fellows founder Cory Levy and Collective Global. Yadegari, who previously sold a business for $100,000 at age 16 and whose previous startup Cal AI was acquired by MyFitnessPal, departed MyFitnessPal in June to focus on Persona. The new venture aims to develop a personal AI assistant that includes a hardware component: a $179 wearable band scheduled for release in December. While Persona's AI model runs in the cloud and user data is encrypted, the company's business model will incorporate advertisements shown during shopping research, though Yadegari states recommendations will remain unbiased. A free beta version of Persona is currently available via iMessage, attracting thousands of users and generating significant pre-order revenue for the wearable band.

The emergence of Persona, with its integrated wearable hardware, signals a significant push towards making AI assistants more physically present and interactive in daily life, moving beyond purely screen-based interfaces. By attempting to blend a non-ambient, user-activated wearable with cloud-based AI processing, Persona is navigating a complex landscape of user privacy expectations and the demand for proactive assistance. This approach could set a new benchmark for how AI integrates with personal devices, potentially influencing competitors to explore similar hardware-software integrations.

Persona's strategy of running its core AI in the cloud while emphasizing data encryption and user control over deletion presents a direct challenge to concerns about AI privacy, especially given its reliance on advertising for revenue. The startup's intent to provide unbiased recommendations despite sponsored product placements will be a critical factor in gaining user trust and adoption. Success in this area could pave the way for a more sustainable and ethically balanced consumer AI market, demonstrating that robust privacy measures and advertising can coexist.