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 5 known funding rounds.

Riiid leads with an Awaira Score of 80/100, while Squirrel AI sits at 64/100. That 16-point gap reflects real differences in funding, scale, and traction — it's not a vanity metric.

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 launched in 2014. Same year, but even a few months' head start matters in AI — early movers lock in data, talent, and customer relationships fast.

Riiid has about 100-500 employees; Squirrel AI has about 1000. A bigger team usually means more revenue or heavier VC backing, but in AI, small teams can build at massive scale.

Yes — they're direct rivals. Both Riiid and Squirrel AI compete in AI Education, targeting many of the same buyers. If you're evaluating one, you should be looking at the other.