Riiid vs Squirrel AI

By valuation, Squirrel AI is the larger company at $1B versus $1B — a 1x difference. Size can also be measured by team: Riiid employs 100-500 people while Squirrel AI has 1000 employees.

Riiid has raised more in total funding at $220M, compared to Squirrel AI's $194M — a gap of $26M. Combined, the two companies have completed 4 known funding rounds.

Riiid holds the higher Awaira Score at 80/100, compared to Squirrel AI's 64/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 16-point gap that reflects meaningful differences in scale or traction.

Riiid was founded by Jang Young-jun in 2014. Squirrel AI was founded by Derek Haoyang Li in 2014. Visit each company's profile on Awaira for a full founder biography.

Riiid: Riiid develops AI-powered adaptive learning and test preparation technology, most notably the Santa TOEIC app, which uses reinforcement learning and knowledge tracing algorithms to personalise English proficiency test preparation for individual learners based on their demonstrated strengths and weaknesses. The Seoul company builds AI models that predict which questions each student should practice to maximise test score improvement per unit of study time.\n\nThe company raised approximately $220 million including a Series D from investors including SoftBank Ventures Asia, Owl Ventures, and GoodWater Capital, reaching a valuation exceeding $1 billion. Riiid Santa TOEIC app has been used by millions of Korean learners preparing for the TOEIC English proficiency exam, which is a mandatory or strongly encouraged credential for employment at major Korean corporations. The company has expanded its AI tutoring technology beyond TOEIC into other standardised test preparation and enterprise training applications.\n\nRiiid competes in the AI education market against Duolingo, Khan Academy, and Korean education technology companies including Classting and Mathpresso. Its reinforcement learning-based adaptive learning system, which optimises study sequences for individual score improvement rather than presenting content in a fixed curriculum order, represents a technically sophisticated approach to personalised learning that distinguishes it from content-first edtech platforms. The proven consumer use case in TOEIC preparation provides a revenue foundation and model validation that the company is extending into new learning domains. Squirrel AI: Squirrel AI is a Chinese artificial intelligence education technology company founded in 2014 that develops adaptive learning platforms for K-12 students. The company's core product uses machine learning algorithms to personalize educational content and learning paths based on individual student performance, knowledge gaps, and learning styles. Squirrel AI's platform analyzes student data to generate customized curricula, adjusting difficulty levels and content recommendations in real-time. The company operates within China's education technology sector, competing alongside platforms like Yuanfudao and One Education. Its technology focuses on intelligent tutoring systems that combine AI-driven assessment with personalized instruction. Squirrel AI primarily serves students in primary and secondary education, with adoption across multiple Chinese provinces. The company has achieved significant financial traction, raising $194 million across multiple funding rounds and reaching a valuation of $1.0 billion, establishing unicorn status. This funding supports continued development of its adaptive learning algorithms and expansion of its user base. Squirrel AI's growth reflects broader trends in China's education technology market, where AI-powered personalization addresses challenges in standardized education systems and student-teacher ratios. The platform's expansion demonstrates sustained investor confidence in AI applications within education technology during the mid-2010s, though market dynamics have shifted since peak edtech valuations. Squirrel AI pioneered adaptive learning technology in China's K-12 market by using machine learning to create truly personalized educational pathways for individual students.

Both Riiid and Squirrel AI were founded in the same year — 2014. Despite sharing a founding year, they may have launched at different times within that year, which can matter in fast-moving AI markets.

Riiid has approximately 100-500 employees, while Squirrel AI has approximately 1000. A larger team often signals higher revenue or venture backing, but in AI, smaller teams are increasingly capable of building at scale.

Yes, Riiid and Squirrel AI are direct competitors — both operate in the AI Education space and likely target overlapping customer segments. This comparison is especially relevant for buyers evaluating both platforms.