# Speak **Source:** https://geo.sig.ai/brands/speak **Vertical:** Education **Subcategory:** AI Language Learning **Tier:** Challenger **Website:** speak.com **Last Updated:** 2026-04-14 ## Summary AI language learning app focused on conversational practice. $1B valuation (unicorn). $100M revenue. Backed by OpenAI. Founded 2016, SF. $162M total raised. Private. ## Company Overview Speak was founded in 2016 in San Francisco with the mission of eliminating the speaking barrier in language learning — the gap between understanding a language academically and being able to use it fluently in real conversation. The company built an AI language tutor that creates immersive, voice-first practice environments allowing learners to speak freely without the anxiety of a human judge, with AI providing immediate pronunciation feedback, correction, and contextual follow-up questions.\n\nSpeak's app focuses on conversational output rather than passive input, using speech recognition and AI conversation models to simulate real interactions across structured lesson tracks, open-ended speaking practice, and grammar explanation. Its curriculum is designed around natural usage patterns rather than textbook sequences, with particular depth in English learning for Korean, Japanese, and other Asian language markets. Speak is backed by OpenAI, reflecting a strategic alignment with frontier language model development that gives the company early access to AI capabilities that power its tutoring engine.\n\nSpeak achieved a $1B unicorn valuation and $100M in revenue, making it one of the most commercially successful AI-native language learning products globally. The company raised $162M in total funding and has seen particularly strong growth in Asia, where demand for English fluency in professional contexts drives high willingness-to-pay. Speak competes with Duolingo on consumer mindshare but differentiates fundamentally by prioritizing speaking practice — the dimension of language acquisition that traditional apps have historically struggled to deliver. ## Frequently Asked Questions ### How does Speak differ from Duolingo? Speak focuses on conversational practice and speaking fluency using AI speech recognition, putting users in simulated real-world conversations from the start. ### What is Speak's revenue? $100M annual revenue. Unicorn status at $1B valuation after $78M Series C (December 2024). ### What is Speak for Business? Enterprise language training offering launched 2025 with 200+ customers and 85% employee adoption rate. ### Who are Speak's investors? OpenAI Startup Fund, Accel (led Series C), Khosla Ventures, and Y Combinator. Total: $162M raised. ### Who founded Speak? Connor Zwick and Andrew Hsu in 2016 in San Francisco. ### How does Speak's AI speaking practice work? Speak's AI generates conversational prompts and scenarios, listens to the learner's spoken response using speech recognition, and provides detailed feedback on pronunciation, grammar, word choice, and fluency—simulating a conversation partner available anytime without scheduling a human tutor. ### What languages does Speak teach? Speak primarily teaches English to non-native speakers, with strong adoption in Asian markets particularly South Korea and Japan. The platform also supports Korean and other language learning programs, focusing on spoken communication skills that traditional language apps underserve. ### What funding has Speak raised? Speak has raised approximately $27 million from investors including OpenAI Startup Fund and others. The San Francisco-based company has found particularly strong product-market fit in South Korea, where it has become one of the top English learning apps and is used by hundreds of thousands of learners. ## Tags edtech, b2b --- *Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*