Stellon Labs is an AI research lab building tiny frontier AI models that run on edge devices such as smartphones, wearables, and embedded systems. Its first open-source model, KittenTTS, is a text-to-speech model under 25MB that drew 8,000 GitHub stars and 45,000 downloads within two weeks of launch. The company aims to bring speech, language, and video intelligence to constrained hardware. Stellon Labs was co-founded by Rohan Joshi, formerly of Meta Research and CMU, and Divam Gupta, and went through Y Combinator's Summer 2025 batch. Public databases report an early pre-seed round of roughly $500K.
Stellon Labs
ActiveBuilding tiny frontier AI models that run on edge devices
Total raised
$1M
2 rounds
Stage
Pre-Seed
Team
1-10
since 2025
Pricing
—
Founded
2025
San Francisco, United States
Agent-ready
—
Tiny frontier AI models designed to run on edge devices
On-device inference for phones, wearables, and embedded systems
KittenTTS, an open-source text-to-speech model under 25MB
Open-source model releases
Focus on speech, language, and video intelligence for constrained hardware
Compact models that avoid heavy cloud dependence
Rapid early traction: 8,000 GitHub stars and 45,000 downloads in two weeks
Founder expertise from Meta Research and CMU
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2025 Seed $500K ● Y Combinator
— Pre-Seed $500K incl. Y Combinator
Capital network
$1M raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What does Stellon Labs build?
- Stellon Labs builds tiny frontier AI models that run on edge devices like phones, wearables, and embedded systems, covering speech, language, and video intelligence.
- What is KittenTTS?
- KittenTTS is Stellon Labs' first open-source release, a text-to-speech model under 25MB that drew 8,000 GitHub stars and 45,000 downloads within two weeks of launch.
- Why focus on edge devices?
- Running models on-device reduces latency and cloud dependence and enables AI on constrained hardware where large models can't run.
- Who founded Stellon Labs?
- It was co-founded by Rohan Joshi, formerly of Meta Research and CMU, and Divam Gupta, and went through Y Combinator's Summer 2025 batch.
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