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Connor Zwick

Connor Zwick is the co-founder and chief executive officer of Speak, an AI language-learning app that he founded with Andrew HsuAndrew HsuAndrew Hsu is an entrepreneur, the co-founder and chief technology officer of the AI language-learning app Speak; known as a child prodigy, he was selected for the first class of the Thiel Fellowship in 2011 and founded Airy Labs, a maker of educational games for children.Open the full entry in 2016; earlier, the flashcard app Flashcards+ that he built was acquired by Chegg, and he was selected as a Thiel Fellow in 2012.

Contents25 sections
Key facts

Growing Up in Wisconsin and Learning to Code

He was born into a farming family in WisconsinWisconsinWisconsin is a state in the north-central United States; its capital is Madison and its largest city is Milwaukee. Wisconsin was admitted to the Union on May 29, 1848, as the 30th state, and the 2020 census (April 1, 2020) counted 5,893,718 residents.Open the full entry and taught himself to code as a middle-school student. He recalled that his mother ran an accounting and tax firm from the basement of the family home, where he first used an old computer, and that since almost no one around him in Wisconsin was interested in computers, he found like-minded people online.⁠[1]

A BuzzFeed News profile states that by the age of 13 he had been taking computers apart for years, and that an Australian technology site, unaware of his age, tried to hire him as a writer.⁠[2]

He attended Waukesha Engineering Preparatory Academy in Waukesha and graduated from it; when Patch interviewed him in January 2011, he was a senior there. He said at the time that the robotics team had taught him professional skills and that the diverse team opened “my eyes to different walks of life.”⁠[3]

He recalled that his first mobile app grew out of a chance meeting with a man at an airport in Wisconsin, who offered to buy him a MacBook if he built an app for him; at the time he had only a Windows computer. The highlights of an AccelAccelAccel is a venture capital firm co-founded in 1983 by Arthur Patterson and Jim Swartz. It invests through regional teams and early-stage, growth and late-stage funds, with operations in the United States, Europe, Israel and India. Its investment history includes Facebook, Flipkart, Atlassian, Slack and other technology businesses. Fundraising totals, regulatory assets under management and portfolio-company transaction values are distinct measures.Open the full entry podcast episode place the start of his founder career at a chance encounter at the Milwaukee airport.⁠[1][4]

He built the flashcard app Flashcards+ in his senior year of high school. He recalled that the app turned the 3-by-5-inch paper cards that American students use into a digital version sized to the iPhone screen; released for free, it went from a few downloads a week to thousands a day and within a few months became the No. 1 app in the education category.⁠[2][5][1]

Speaking about the origins of Speak, he mentioned that he had studied Spanish for four years, yet when he went to Spain around the time of his graduation he could hardly say a word.⁠[1]

Studying at Harvard University

He recalled that right after high school he went to San Francisco and considered skipping college; in the end he decided to spend a year at Harvard University and enjoyed college life, but he went to San Francisco for technology work nearly every other week and eventually concluded that his real path lay in San Francisco. Patch wrote in June 2012 that he had studied at Harvard University over the past year.⁠[1][3]

BuzzFeed News writes that he believed Flashcards+ helped him get into Harvard University and the startup incubator Y Combinator; he said that Harvard University called him the day after his interview and said “that was very rare.”⁠[2]

The BuzzFeed News profile also relates that the previous summer a company had wanted to invest in Flashcards+; he turned it down, saying “I’m 17; I don’t want the responsibility,” but the company still flew him out for the summer.⁠[2]

Meeting Sam Altman

Selected as a Thiel Fellow

The body of the same VentureBeat article gives his age as 19, unlike the 18 in the list.⁠[6]

TechCrunchTechCrunchTechCrunch is an American technology news outlet founded in 2005 by Michael Arrington and Keith Teare and headquartered in San Francisco; it mainly covers technology companies, startups, and venture capital, and hosts events such as TechCrunch Disrupt. Its ownership passed successively through AOL, Verizon, and Yahoo, and in 2025 Regent announced its acquisition.Open the full entry, introducing that year’s fellows, wrote that as a Harvard University student he had an iPhone app that made enough to give him a livable income; the flashcard app seemed simple on the surface, but he thought of it as a learning network that responds and adapts to how people progress in taking in new material.⁠[8]

Launching the Coco Controller with Colton Gyulay

After becoming a Thiel Fellow, he founded Coco Controller with Colton Gyulay and served as its founder and CEO. The company was in Y Combinator’s Summer 2012 batch and made a tactile gaming controller for mobile phones; Y Combinator’s company page now lists it as inactive.⁠[12][5]

TechCrunch wrote on August 14, 2012 that Coco Controller was raising money on Kickstarter with a goal of $175,000 and had so far raised $12,000; the YC-backed company had also opened a $150,000 convertible note. A black or white Coco cost $42 and a color one $50. The controller had an analog stick and an eight-direction pad, had no battery and drew power through the headphone jack, and came with an extender for iPads. The article describes him and Colton Gyulay as Harvard University dropouts.⁠[13]

He said the two came up with the idea on a plane after growing frustrated with touchscreen gaming and built an Arduino-based proof of concept; he spent two months designing manufacturable circuitry and a plastic body and coordinating manufacturing, while Colton Gyulay signed up games and built a simple SDK for several platforms. He said more than 30 games had signed up before the launch.⁠[13]

The BuzzFeed News profile, written as the campaign launched, gives his age as 19 and was based on an interview at a coffee shop in Palo Alto. It states that Flashcards+ had had almost a million downloads; that the controller connected through the audio port rather than Bluetooth, cost $35 and had 31 companies signed on to make their games work with it; that the Kickstarter goal was $175,000; and that a New York TimesThe New York TimesThe New York Times is an American morning daily newspaper published in New York City. Founded in 1851, it is published by The New York Times Company.Open the full entry reporter had filmed him for the campaign video. He conceded that the project was not “world-changing” like many Thiel Fellows’ work, but he believed hardware would be the next wave of startups, and said, “This is a first product, and we want to do more.”⁠[2]

The profile adds that he had spent a weekend at the house Mark Zuckerberg rented in Palo Alto; that he was considering staying in the Bay Area and had not decided whether to return to Harvard University; and that the developers he worked with were at least 30, while most of the people he spent time with were older, “More like 21.” He said he was too busy for a girlfriend.⁠[2]

Selling Flashcards+ to Chegg

In 2013, after dropping out of Harvard University, he sold Flashcards+ to the education technology company Chegg. His Y Combinator founder page states that he “Sold previous company Flashcards+ to Chegg (NYSENew York Stock ExchangeThe New York Stock Exchange is a securities exchange on Wall Street in New York City. It traces its origins to the Buttonwood Agreement signed by 24 stockbrokers in 1792, has used its present name since 1863 and has been owned by Intercontinental Exchange since 2013.Open the full entry: CHGG)”; Speak’s careers page calls Flashcards+ the No. 1 education app, and his ASU+GSV Summit speaker biography calls it a leading U.S. education app.⁠[9][11][14][15][16]

Teaching Himself Deep Learning and Researching Accent Detection

TechCrunch writes that before starting Speak the two spent a year studying machine learning and developing accent-detection algorithms with YouTube videos as training data. OpenAI’s 2025 article states that in 2015 he and his co-founder did independent AI research, scraping YouTube data as a side project, and that on their first training run the model outperformed the state of the art in accent detection; he said this made them realize how powerful deep learning would be with enough data.⁠[9][11][17]

He recalled that the team tried to implement whatever research papers they could find and built a model that recognized accents from large amounts of YouTube data, which felt like magic and convinced them of Speak’s potential. The summary of a Subversive podcast episode likewise states that the speech-recognition model the two built outperformed existing models, which showed them AI’s potential for language learning.⁠[1][5]

He recalled that people asked what he was doing and that, to others, he and his team seemed a little crazy.⁠[1]

Co-founding Speak with Andrew Hsu

In 2016 he and Andrew Hsu founded Speak in San Francisco; the company’s legal name is Speakeasy Labs, Inc. Andrew Hsu became chief technology officer, and he became chief executive officer.⁠[18][15][19][20]

A TechCrunch article of June 2024 instead states that he and Andrew Hsu, who met while at the Thiel Fellowship, launched Speak in 2014.⁠[21]

He said Speak grew out of AI work around 2015 and 2016, after several side projects, and that he does not see himself as an edtech person but has always liked building things he would use himself.⁠[1]

He recalled that fundraising in 2016 was not easy, and that some investors even asked whether the app was a secret ploy to collect and sell data.⁠[10]

He recalled that OpenAI was founded in 2015 and Speak in 2016, and that Sam Altman invested in Speak early on as an individual.⁠[1]

Y Combinator Winter 2017 Batch

Speak took part in Y Combinator’s Winter 2017 batch; his Y Combinator founder page lists him in two batches, Summer 2012 and Winter 2017.⁠[22][14]

Deciding to Launch First in Korea

In November 2017 he sent investors a memo explaining the decision that he and Andrew Hsu had made to launch Speak first in Korea. Accel published the memo on March 18, 2025, calling it “succinct, well-researched, and loaded with the conviction” that he describes as the essential trait of successful founders; Accel wrote that the decision to launch first in Korea had been a massive part of Speak’s early success.⁠[23]

He recalled that neither he nor his co-founder had ever visited Korea before starting the company, and that Korea stood out for the cultural influence of K-pop and K-dramas and for its intense focus on learning English.⁠[1]

A Trip to Seoul

Forbes writes that on a trip to Seoul in 2018 he saw skyscrapers full of English classrooms and English-class advertisements on taxi tops and billboards, and realized that Speak’s biggest market was Seoul rather than Silicon Valley, where the company was headquartered. He said that English learning there “was like an obsession,” while existing courses stressed grammar and vocabulary and “there was this fear of making mistakes.” Pitching Speak, he said: “No one’s going to know if you said something embarrassing.”⁠[10]

He recalled driving through central Gangnam in Seoul and seeing huge buildings packed with English classrooms and cram schools; he considered secretly attending a class but decided against it because he would stand out, and Speak instead hired linguists and well-known cram-school instructors.⁠[1]

Speak Launches in South Korea

In 2019 Speak launched in South Korea, its first market. The summary of the Subversive podcast episode states that for its first four years Speak served only English learners in South Korea, and that South Koreans spend 1% of GDP on learning English.⁠[24][21][5]

$27 Million Series B Led by the OpenAI Startup Fund

In November 2022 Speak announced a $27 million Series B round led by the OpenAI Startup FundOpenAI Startup FundThe OpenAI Startup Fund is a venture fund set up by OpenAI in May 2021 with an initial $100 million from Microsoft and other partners to invest in early-stage AI companies. It had raised about $175 million by 2023, and control passed to Ian Hathaway in March 2024.Open the full entry, with Founders FundFounders FundFounders Fund is a venture capital firm founded in San Francisco in 2005 by Peter Thiel and his former PayPal colleagues Ken Howery and Luke Nosek. Run by partners who were entrepreneurs themselves, it argues that founders should keep more control and is known for betting on difficult technology projects in areas such as space, defense, and artificial intelligence. It was Palantir’s first institutional investor, has invested in SpaceX many times since 2008, and its other notable investments include Facebook, Airbnb, Stripe, and Anduril; as of March 2026 it had raised nine early-stage funds and four growth funds.Open the full entry, Lachy Groom, Josh Buckley, Justin Mateen, Gokul RajaramGokul RajaramGokul Rajaram is a Silicon Valley product leader and investor who helped build Google AdSense early in his career, went on to serve as an executive at Facebook, Square (Block), and DoorDash, and sits on the boards of public companies including Coinbase and Pinterest; in 2024 he co-founded the investment firm Marathon Management Partners with a partner.Open the full entry and others taking part. TechCrunch wrote that Speak was the third startup in which OpenAI had publicly invested through the fund, after Descript and Mem, and that the round brought Speak’s total funding to just over $47 million.⁠[18][9]

Speak announced at the time double-digit-million annual recurring revenue, nearly 100,000 paying subscribers and the top-grossing education app on the App Store; just under 15 million English lessons had been started on the platform in 2022, and users had received more than 10 million pieces of pronunciation feedback. He said that developing this AI speaking companion “has been a goal of Speak’s since inception.” TechCrunch put it as more than 15 million lessons started annually, 100,000 active subscribers and one of the top education apps in Korea on the iOS App Store.⁠[18][9]

TechCrunch wrote that Speak then had 40 employees in offices in San Francisco (its headquarters), Seoul and Ljubljana, Slovenia. He said that under the hood Speak combined the latest from OpenAI with in-house models and was building a large dataset of labeled second-language speech; the article noted that Speak had provided no empirical data showing its platform outperformed rivals. He also said the company had “multiple years of runway.”⁠[9]

He recalled that OpenAI had contacted him about having Speak test a top-secret new model that was very good at speech recognition, and said that the OpenAI Startup Fund, then about $100 million in size, invested about $20 million of it in Speak.⁠[1]

Upgrading the AI Tutor with GPT-4

$16 Million Series B-2

On August 31, 2023 Speak announced a $16 million Series B-2 round led by the angel investor Lachy Groom, with the Dropbox co-founders Drew Houston and Arash Ferdowsi taking part, bringing its total funding to $63 million. He said the money would support launches in more markets, including the United States by the end of the year, offering English speakers other languages; Speak was then live in about 20 countries, including Japan, Taiwan, Germany, France, Brazil and Mexico.⁠[11]

Speak said it had helped about 3 million people, nearly 6% of Korea’s population, learn English, and that it had “well over 100,000 subscribers” in South Korea. He said the learning experience honed in Korea had resonated with almost no modification in markets and cultures across the globe.⁠[11]

Valuation Reaches $500 Million

In June 2024 Speak raised $20 million (a Series B-3 in Speak’s announcement, a Series B extension in TechCrunch’s report), led by Buckley Ventures, with all existing investors including the OpenAI Startup Fund and Khosla Ventures participating and Paul Graham and Jeff Weiner joining as strategic investors; its valuation doubled in under a year to $500 million, and total funding reached $84 million.⁠[24][21]

Speak announced more than 10 million learners in more than 40 countries, a learner count that had more than doubled every year for five years, and Spanish alongside English, and said it had launched its English offering in Mandarin-speaking markets. TechCrunch wrote that the company had 75 employees in offices in San Francisco, Seoul, Tokyo and Ljubljana, and that full access cost $20 a month or $99 a year. He said the team had worked on the problem for seven years and that “the most cutting edge speech-to-speech models are the final unlock” for a one-to-one alternative to human tutoring; he also said, “Our core philosophy is centered around getting users to speak out loud as much as possible.”⁠[24][21]

Accel-Led Series C at a $1 Billion Valuation

On December 10, 2024 Speak announced a $78 million Series C at a $1 billion valuation, led by Accel, with existing investors including the OpenAI Startup Fund, Khosla Ventures and Y Combinator taking part. It was Speak’s second preempted raise that year, its valuation had doubled in six months, and its total funding reached $162 million; Ben Quazzo, the Accel partner who led the round, joined the board.⁠[20][25]

The announcement he signed states: “Our vision hasn’t changed since we started Speak eight years ago.” Speak said users had spoken more than a billion sentences with it that year and that it had created more than 25 million personalized lessons, and that Speak for Business, its enterprise offering, had more than 200 customers and an 85% employee adoption rate.⁠[25]

TechCrunch wrote that much of the new money would go to adding target languages, starting with Spanish and French; Andrew Hsu said the app had been downloaded more than 10 million times, with average use of 10 to 20 minutes a day. He said that many of the 1.5 billion people learning English had studied hard for 15 years or more but still could not speak it, and that Speak’s value lay in teaching people to communicate; he also said that when gamification conflicted with efficacy, Speak would choose efficacy “100% of the time,” and that Speak deliberately avoided test preparation because tests are imperfect and people learn to game them rather than to communicate.⁠[20]

OpenAI Article on Speak

On April 22, 2025 OpenAI published an article on Speak, episode 7 of its Executive Function series. In it he says that Speak’s first years focused on speaking experiences, at a time when language-learning apps either lacked a speaking component or had models that could not robustly understand accented speech, and that Speak’s own speech recognition outperformed the big models of the time on accented speech; he names the 2012 AlexNet paper and AlphaGo as meaningful AI moments of the past decade and more, calls OpenAI’s real-time API and audio multimodality the latest breakthrough to change Speak’s thinking, and sees reasoning as the next frontier.⁠[17]

He says that leaders of AI products need deep technical intuition to plan roadmaps and that teams must understand the difference between 90% and 99.9% accuracy; he argues that AI is not meant to replace human teachers but to make tutoring better and more widely available, since billions of people are trying to learn English and other languages and there are not nearly enough good human teachers.⁠[17]

Interview with The Korea Economic Daily in San Francisco

On August 31, 2025 he was interviewed in San Francisco by the Silicon Valley correspondent of The Korea Economic Daily; the interview was published on September 1. He said that the way people have studied for the past 5,000 years is about to change, comparing this with AmazonAmazonAmazon is a publicly traded U.S. technology and retail company founded by Jeff Bezos in 1994, with its principal corporate offices in Seattle. Its businesses span e-commerce, logistics and fulfillment, digital advertising, membership and entertainment services, consumer electronics, and Amazon Web Services cloud computing.Open the full entry, which began as a bookstore and became a retail giant, and arguing that AI will transform learning far more broadly than people now realize; he likened Speak to having the world’s best conversation teacher in one’s pocket, said that building Speak now was like building a personal computer in 1984, and named Speak for Business and, eventually, subjects beyond languages among future plans, while saying that for now he was focused on language. Speak calls its internal teaching approach the “Speak Method,” aimed at building real speaking fluency as fast as possible; he described the ideal future as learners having a conversation partner they enjoy talking to.⁠[1]

He predicted that in ten years more people, not fewer, would be learning languages, giving as reasons self-improvement, cultural and human connection, and business; he said many Koreans imagine themselves, or their ideal selves, as English speakers, that talking to an AI removes the shame of making mistakes, and that Speak’s message is that mistakes are fine and are the path to growth. He said he still keeps in touch with Sam Altman and often feels guilty because Altman is so busy.⁠[1]

Speak’s Annualized Revenue Passes $100 Million

Forbes wrote in November 2025 that Speak had been downloaded about 15 million times, was valued at $1 billion and had more than $100 million in annualized revenue, mostly from its consumer business; users start for free and pay $80 to $200 for more content. Besides English, Speak offered role plays and lessons for Korean, Spanish, Japanese, French and Italian, built primarily on OpenAI’s models. It began pushing into enterprise in 2024, and about 500 companies, including KPMG and HD Hyundai, offered subscriptions, mainly to employees in South Korea; Speak had also gained ground in Japan and Taiwan, began a concerted push in the United States in June 2025, and had raised about $160 million in total from investors including Khosla Ventures, Accel and the OpenAI Startup Fund.⁠[10]

He said Duolingo focuses on grammar and vocabulary while Speak focuses on conversational fluency, muscle memory and pronunciation, and claimed that people speak five to ten times more on Speak than on other language apps; he said that “Mobile games that also teach you language are, at the end of the day, ways to feel less bad about using your phone when you’re bored,” “a healthier alternative to Candy Crush,” and called Speak “something a little bit more serious.” The Accel partner Ben Quazzo said Speak’s focus on South Korea was intentional, a “sandbox” for testing the product.⁠[10]

Guest on the Subversive Podcast

On February 5, 2026 the Subversive podcast, hosted by Phil Carter, released an interview with him (season 1, episode 29, 45 minutes 38 seconds), with chapters on how he started his first company as a teenager (3:11) and what inspired him and his co-founder to start Speak (6:11); the episode summary states that Speak then taught six languages: English, Spanish, French, Italian, Japanese and Korean.⁠[5]

As of November 2026: Chief Executive of Speak

As of November 2026 his Y Combinator founder page lists him as CEO of Speak. Speak’s careers page states that the company has a team of 130 people in offices in San Francisco, Seoul, Tokyo, Taipei and Ljubljana, serves hundreds of thousands of subscribers in more than 30 countries, and has raised more than $150 million from institutions including Accel, the OpenAI Startup Fund and Founders Fund and from individuals including Sam Altman, Peter Thiel and Lachy Groom.⁠[14][15][16]

Accel Podcast Interview

He was a guest on Accel’s Spotlight On podcast, season 3, episode 6, hosted by Ben Quazzo; the episode summary states that more than 10 million people had downloaded Speak and taken lessons in the past year. The highlights run in this order: the start of his founder career (0:00); the two founders becoming convinced in 2015 that deep intelligence could teach people a new language (6:24); Speak’s origins, from speech recognition to a learning flywheel (11:12); why they chose Korea as the first market (16:39); thinking about geography when choosing a market (19:12); good ideas being common while conviction is what matters (20:55); lessons on reaching product-market fit (22:45); plans for new regions and user segments (27:30); building consumer AI (32:37, where he says “Productizing consumer AI is super hard”); how people actually learn languages (38:24); and “You can’t outsource a core competency of your company” (41:10).⁠[4]

Related Organizations, Websites, and Public Accounts

Thiel Fellowship: Official website: https://thielfellowship.org/ (opens in a new window).⁠[26]

Sources

  1. "5000년 만에 드디어 바꿨다"…챗GPT 아버지도 찜한 이 남자 [김인엽의 퓨처 디스패치] [“Finally changed after 5,000 years”: the man the father of ChatGPT also picked [Future Dispatch column]] (opens in a new window) (in Korean)
  2. The Teenager Who Wants To Fix Smartphone Gaming (opens in a new window)
  3. Waukesha Teen Receives Thiel Fellowship (opens in a new window)
  4. Speak CEO Connor Zwick on Building the Next Great Language Learning App (opens in a new window)
  5. How Speak Built a $1B AI Language Learning App (opens in a new window)
  6. Peter Thiel gives new class of students $100K to forgo college (opens in a new window)
  7. Facebook's First Investor Pays Twenty More People To Skip School (opens in a new window)
  8. Nuclear Fusion, 3D Printing, Biomedical Imaging: What Thiel’s New 20 Under 20 Fellows Are Attacking (opens in a new window)
  9. Speak lands investment from OpenAI to expand its language learning platform (opens in a new window)
  10. This startup is racing Duolingo to replace human language tutors with AI (opens in a new window)
  11. OpenAI-backed language learning app Speak raises $16M to expand to the US (opens in a new window)
  12. Coco Controller: We're building a tactile gaming controller for mobile phones. (opens in a new window)
  13. The YC-Backed Coco Controller Will Turn Your iPhone Into A Gaming Powerhouse (opens in a new window)
  14. Connor Zwick - Y Combinator Founder of Speak (opens in a new window)
  15. Careers - Speak (opens in a new window)
  16. Connor Zwick (opens in a new window)
  17. Speak is personalizing language learning with AI (opens in a new window)
  18. Speak Announces $27M Series B Led by OpenAI Startup Fund (opens in a new window)
  19. Speak - The language learning app that gets you speaking (opens in a new window)
  20. OpenAI-backed Speak raises $78M at $1B valuation to help users learn languages by talking out loud (opens in a new window)
  21. Language learning app Speak nets $20M, doubles valuation (opens in a new window)
  22. Speak: A superhuman, AI-powered language tutor in your pocket (opens in a new window)
  23. ARTIFACT: The Investor Memo Detailing Why Speak Decided to Launch in Korea (opens in a new window)
  24. Speak Hits $500M Valuation, Expands Rapidly Across Markets (opens in a new window)
  25. A new milestone as we bring language learning to all: Raising $78M Series C at a $1B valuation (opens in a new window)
  26. Thiel Fellowship (opens in a new window)