Mosaic YC Application

Summer 2026Active

San Francisco

Mosaic went through Y Combinator in the Summer 2026 batch as a B2B company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch: Summer 2026
Industry: B2B
Location: San Francisco
Team size: 2
Status: Active
Launched: 2026

Founders

Shubham PatilFounder
Dorsa RohaniFounder

What Mosaic does

Mosaic gives teams and their coding agents shared memory across every session, so everyone can understand what happened, why decisions were made, and pick up where someone else left off. We started as a real-time coding environment where multiple people and their agents can work together live. It went viral, defined the multiplayer AI category, and inspired frontier labs like Anthropic. Together, we’re building the infrastructure for people and agents to share context and work together.

Mosaic's YC application, reconstructed

Y Combinator application

Mosaic, Summer 2026 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Mosaic

Describe what your company does in 50 characters or less.

Shared memory for teams and coding agents.

What is your company going to make? Please describe your product and what it does or will do.

We built Mosaic, a platform where teams - and their coding AI agents - share memory and context across every session. It started as a real-time coding environment, letting multiple people and their AI agents work together live. Mosaic now gives everyone working - including software engineers and their agents - access to what happened, why decisions were made, and a way to pick up where anyone left off. We're making the infrastructure for humans and AI to share context, truly collaborate, and get real work done together.

Where do you live now, and where would the company be based after YC?

We live in San Francisco, CA, and the company is based here.

Explain your decision regarding location.

There is a massive concentration of engineering and AI talent, users, and partners in San Francisco. Our early users are here, and it's a natural place to build a company working on frontier AI.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

See full application

Frequently Asked Questions

Is this the real Mosaic YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Mosaic's public data (launch notes, founder backgrounds, product description). It shows how a company like Mosaic would present itself to YC, not the text they submitted.