S
Sesame
AI · San Francisco, United States · Founded 2023
AI research team building human-like voice companions that listen, speak and assist throughout daily life MoreLess
Sesame AI is pioneering a new era of voice companions—bringing speech to life through devices that blend seamlessly into daily life. Their core mission is to make voice feel nuanced and natural, not robotic or forced. To achieve this, they’re building advanced voice models with the subtle pauses, breaths, emotions, and timing of real conversation. The result is a voice interface that feels more like chatting with a friend than issuing commands to a machine.
At the heart of this experience is their Conversational Speech Model (CSM)—a sophisticated AI trained to understand context in real time and respond fluidly. Early demos have amazed listeners by crossing the “uncanny valley,” delivering speech that feels surprisingly human. To make these companions truly practical, Sesame is also designing lightweight wearable devices—specifically sleek glasses—that stream high-quality audio directly from your voice companion as it observes your surroundings. The combination of hardware, software, and machine learning creates a unified system designed to be always present, always listening, and always helpful—without ever being intrusive.
Their ultimate goal is clear: turn voice into a rich, everyday interface, and give people a personal companion that’s conversational, intuitive, and naturally integrated into their lives.
Company overview
Sesame company information
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- Status
- Operational
- Founded
- 2023
- Headquarters
- San Francisco, United States
- Employees
- 79
- Open positions
- 18
- Dealroom signal
- 94.8
Valuation & funding
Sesame funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES BOther financing | Oct 2025 | $250M | $1B | Spark Capital · Sequoia | ↗ |
| SERIES AOther financing | Nov 2023 | $58M | $230M | Andreessen Horowitz · BIG Ventures · Matrix · Spark Capital | ↗ |
| SEEDOther financing | Sep 2023 | $10M | $40M | Undisclosed | ↗ |
Growth signals
Sesame website traffic
Latest recorded traffic for Sesame is 1.1M monthly website visits, up 0% over the last three months. Sesame's team grew 0% over the past year.
Hiring
Open positions at Sesame
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Comparisons
Sesame compared with similar companies
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Talent graph
Sesame's talent
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Global footprint
Where Sesame has talent and traffic
In the news
Latest news about Sesame
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Market sentiment
What the market is saying about Sesame
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Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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