Speak
YC W17San Francisco, US · 40 employees · Hiring · 30 known investors
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Speak is an AI-powered language learning platform that uses a proprietary curriculum to teach users conversational language through personalized lessons, practice exercises, and real-time interaction with a tutor.
Also known as Inc. · Speakeasy Labs
Founders & leadership· Y Combinator alumni (W17)

Investors · 30
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Collaborative Fund's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Firebolt Ventures Management Company, Llc's portfolio page · Not right? Tell us
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How we know: Khosla Ventures's portfolio page · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Next Play Ventures's portfolio page · a partner's Signal profile · the VCSheet dataset · Not right? Tell us
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How we know: open dataset · 5k.vc investor directory · Not right? Tell us
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How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Also in the syndicate · 1
Funding
SEC filings, press & company announcements$16M disclosed across 1 of 5 rounds · 2023–2025
- Undisclosed amountSeries CJan 2025Source ↗
- Undisclosed amountSeries CDec 2024Source ↗
- $16MraisedAug 2023 · 2 sources
Lachy Groom (lead), OpenAI
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Founder mafia
3 people who came through Speak went on to found or lead other companies.
Related companies · 7
Companies working in the same space as Speak.
In the news
Frequently asked questions
- What does Speak do?
- Speak is an AI-powered language learning platform that uses a proprietary curriculum to teach users conversational language through personalized lessons, practice exercises, and real-time interaction with a tutor.
- Who founded Speak?
- Speak was founded by Andrew Hsu.
- Who are Speak's investors?
- Speak's investors include Accel, Angel Collective Opportunity Fund, Collaborative Fund, Firebolt Ventures Management Company, Llc, GSV Ventures, Khosla Ventures, Next Play Ventures, Standard Capital and 21 more.
- How much funding has Speak raised?
- Speak has disclosed $16M raised across 1 of its 5 known rounds.
- Where is Speak headquartered?
- Speak is headquartered in San Francisco, US.





















