Speak, a global leader in AI-powered language learning, has raised $78 million in Series C funding, achieving a $1 billion valuation. This funding milestone underscores the company’s mission to transform language education by prioritizing spoken fluency through innovative AI technology. Founded in 2016 by Connor Zwick and Andrew Hsu, Speak has become a trailblazer in the language learning space, combining advanced AI with expert-designed content to empower learners worldwide.
The company’s approach focuses on speaking out loud, recognizing this as the most effective way to achieve fluency. Speak’s AI-powered virtual tutor, Speak Tutor, delivers personalized lessons tailored to each learner’s pace, goals, and unique style. This approach has helped over 10 million learners in 40+ countries achieve measurable progress in speaking English and other languages.
A Revolutionary Language Learning Experience
Speak’s core philosophy is simple yet powerful: to learn a language effectively, you need to speak it out loud. Traditional language learning tools often neglect this crucial aspect, leaving learners unable to communicate confidently despite years of study. Speak addresses this gap with its proprietary AI-driven curriculum, which adapts dynamically to user needs.
Learners using Speak’s platform practice hundreds of sentences weekly, gaining fluency through repetition and real-time feedback. Features such as the AI-powered Live Roleplays enable learners to engage in immersive, life-like conversations, simulating real-world scenarios and providing nuanced corrections on tone, pronunciation, and grammar.
The app’s effectiveness is reflected in its user feedback. One user in Korea shared, “I’ve tried seven different apps, but Speak is the best for fluency practice. It corrects grammar and pronunciation and offers natural phrase suggestions. Highly recommend!”
Driving Growth Across Global and Enterprise Markets
Building on its success in South Korea, where it is the #1 English learning app, Speak has expanded its reach to new markets, including Japan, Taiwan, and Europe. The app’s recent introduction in Mandarin-speaking regions and its launch of Spanish courses reflect the company’s ambition to cater to learners globally. Speak’s approach to language education resonates across cultures, making it a preferred choice for millions.
Recognizing the importance of English fluency in the workplace, Speak introduced “Speak for Business,” an enterprise solution designed to support organizations in enhancing their teams’ communication skills. With over 200 clients and an 85% employee adoption rate, this initiative addresses the universal need for English proficiency across industries.
Technology That Powers Success
Speak’s achievements are rooted in its commitment to leveraging cutting-edge AI and speech recognition technology. The platform’s proprietary learning engine is powered by state-of-the-art large language models (LLMs) and innovative speech-to-speech capabilities, enabling dynamic and immersive learning experiences. With the integration of OpenAI’s Realtime API, Speak has set a new standard for conversational AI, offering users real-time feedback that rivals human interaction.
This dedication to technological excellence has not gone unnoticed. “Speak has redefined language learning with a focus on speaking fluency, combining advanced AI with personalized learning,” said Ian Hathaway, partner at the OpenAI Startup Fund. “Their rapid growth and innovation make them a category-defining company in AI education.”
Backed by Visionary Leadership and Investors
Founded by Harvard and Stanford alumni Connor Zwick and Andrew Hsu, Speak was born from a vision to democratize language learning. Both founders bring extensive experience in education and technology, with previous ventures such as Flashcards+, which was acquired by Chegg. Speak’s ability to attract top-tier talent and investors has fueled its growth. To date, the company has raised $162 million, with backing from Accel, Khosla Ventures, the OpenAI Startup Fund, and Y Combinator.
The latest Series C funding round, led by Accel, marks Speak’s second preemptive raise this year, doubling its valuation in just six months. This capital will support the company’s expansion into new markets, the development of additional languages, and further advancements in its AI learning engine.
The Road Ahead
As Speak continues to innovate, its vision remains steadfast: to build the world’s most advanced AI language tutor and make spoken fluency accessible to millions. With plans to introduce more languages and further refine its AI capabilities, Speak is poised to redefine language education on a global scale.
“Our mission has always been to make language learning engaging, effective, and accessible,” said Connor Zwick, CEO of Speak. “We are energized by the opportunity to help learners worldwide speak confidently, one conversation at a time.”
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