Ello

Ello is a Public Benefit Corporation based in San Francisco that develops artificial intelligence systems for childhood education. The company's primary product is an AI-powered reading and math teacher designed for children aged four to nine. It provides a one-to-one learning experience that adapts to each child's progress in real time, adjusting its pace based on whether a student is struggling or ready to advance.

The company's technical work centers on speech perception and recognition technology. Ello has trained its custom speech models on more than 100,000 hours of child audio, a dataset intended to improve accuracy with young speakers. The system is engineered for conversational use, achieving sub-second latency on turn-taking interactions.

Ello's stated mission involves democratizing access to individualized tutoring. The company identifies its workforce as "Former kids," a reference to its focus on building products from a child's perspective, and positions social impact as a core element of its corporate structure and objectives.