Sesame
San Francisco, CA, USA
Founded 2023
Sesame is a conversational AI company building voice companions and lightweight smart eyewear designed to enable natural, emotionally resonant interactions. Its Conversational Speech Model (CSM) generates speech directly from text and audio context, capturing tone, rhythm, and emotion for lifelike dialogue.
Websites:
Last Updated: March 9, 2026
Current Valuation
$1B
as of October 21, 2025 (Source)
Funding Summary
$307.6M
Total reported funding
Media Mention
February 27, 2025
The Verge: Sesame is the first voice assistant I’ve ever wanted to talk to more than once
Key People
Core OSS Projects
Conversational Speech Model — a multimodal speech generation model that generates RVQ audio codes from text and audio inputs using a Llama backbone and audio decoder
License: Apache-2.0
Business Information
Technologies
Text-to-Speech
Generative AI
Machine Learning
Conversational AI
Voice
Sectors
Consumers
Licenses
Apache-2.0
Socials and Communities
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