Who founded Sentient OS?

Sentient OS was founded by Jesai Tarun, Aditya Vellanki in 2026.

Who are Sentient OS's investors?

Sentient OS's investors include Y Combinator.

Where is Sentient OS headquartered?

Sentient OS is headquartered in San Francisco, US.

Sentient OS

YC F26

San Francisco, US · Founded 2026 · 2 employees · 1 known investors

Find your way into Sentient OS

389 people in our graph share verified history with the Sentient OS team — schools, employers, funds. One of them is your warm intro.

Garry Tanunlockedknows Aditya Vellanki · together at Y Combinator (overlapped)

×11knows the team · via Y Combinator

Sentient is a free, open-source macOS application that runs an on-device LLM to build a personal knowledge base from a user's files and proactively completes tasks through computer use. It stores data locally in plain markdown, uses a small on-device model plus the user's own frontier model (ChatGPT, Claude, OpenRouter, or LM Studio), and is optimized for Apple silicon.

AI & Machine Learning Consumer Deep Tech Enterprise Software Future of Work Artificial Intelligence Productivity AIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (F26)

Sentient OS was founded in 2026 by Jesai Tarun and Aditya Vellanki.

Jesai Tarun inFounder & CEOFounder and CEO of Sentient OS (YC F26), which builds on-device AI designed to understand a user's context and complete tasks via computer use. He previously created Writing Tools, an open-source writing assistant, and has a background in on-device machine learning inference, including work with Apple's MLX framework.

Aditya Vellanki in 𝕏Co-FounderFounder and CTO of Sentient OS (YC F26), an enterprise software company. He has built consumer products and decentralized protocols, and has spent the past two years working on enterprise products.

Investors · 1

Y CombinatorSan Francisco · $500K

The YC application· Fall 2026 batch

▶ Application video — watch on YC ↗

Frequently asked questions

What does Sentient OS do?: Sentient is a free, open-source macOS application that runs an on-device LLM to build a personal knowledge base from a user's files and proactively completes tasks through computer use. It stores data locally in plain markdown, uses a small on-device model plus the user's own frontier model (ChatGPT, Claude, OpenRouter, or LM Studio), and is optimized for Apple silicon.
Who founded Sentient OS?: Sentient OS was founded by Jesai Tarun, Aditya Vellanki in 2026.
Who are Sentient OS's investors?: Sentient OS's investors include Y Combinator.
Where is Sentient OS headquartered?: Sentient OS is headquartered in San Francisco, US.