Quantstruct YC Application

Winter 2025Active

Quantstruct went through Y Combinator in the Winter 2025 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: Winter 2025
Industry: B2B
Team size: 2
Status: Active
Launched: 2025

Founders

Sarthak SrinivasFounder
Newman HuFounder

What Quantstruct does

Quantstruct automatically creates and improves product documentation, implementation guides, and changelogs for API & SDK products, web-based enterprise software, and internal applications. Quantstruct identifies gaps in your knowledge base based on each product release or unfulfilled customer query. It uses multiple AI agents to search existing knowledge sources, test existing docs for validity and style guidelines, and clicks, scrolls, and uses enterprise software through a web browser to generate docs with embedded screenshots and video recordings. Quanstruct is available as a cloud service to start, targeting technical writers, content writing, professional services, and product teams. Traditional generative AI tools risk hallucinating critical API & SDK fields, even with RAG based approaches. Purely agent-based approaches risk providing unpredictable output that can diverge from desired documentation processes. Finally, no company’s review and publishing workflow is the same. Quantstruct is the easiest way to onboard and customize AI agents to continuously improve your documentation based on your customer needs and product evolution.

Quantstruct's YC application, reconstructed

Y Combinator application

Quantstruct, Winter 2025 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Quantstruct

Describe what your company does in 50 characters or less.

AI documentation engineer for stale product docs

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

We build an AI service that automatically creates and improves product documentation, implementation guides, and changelogs for API and SDK products, web enterprise software, and internal apps. Quantstruct uses multiple AI agents to search existing knowledge, test docs for accuracy and style, and interact with software via a browser to generate docs with screenshots and videos. We target technical writers, content teams, and product groups who struggle with documentation quality and maintenance.

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

We live in San Francisco, CA, and plan to keep the company based here after YC.

Explain your decision regarding location.

San Francisco is where we live and where our customers and engineering community are concentrated. Staying here helps us build relationships and recruit talent easily.

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 Quantstruct YC application?

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