Aplicación YC de Rasyn

Summer 2026Active

San Francisco

Rasyn pasó por Y Combinator en el batch Summer 2026 como una empresa de Healthcare. Abajo: qué hace la empresa, quién la fundó y su aplicación a YC, reconstruida pregunta por pregunta en el formulario real de YC.

Batch YC: Summer 2026
Industria: Healthcare
Ubicación: San Francisco
Tamaño del equipo: 3
Estado: Active
Lanzado: 2026

Fundadores

Ansh TiwariFounder/CEO
Ayush ChauhanFounder/CTO
Daood HashmiFounder

Lo que hace Rasyn

We builds foundational AI models for chemistry. Almost nothing you buy is a single chemical. Products like datacenter coolant, GPU thermal paste, paint, and glue are formulations, which are mixtures of around ten ingredients each, and demand for them has grown quickly because of AI and EVs. Designing a new formulation is essentially a search problem, because there are more possible mixtures than anyone could ever test, and none of them can be predicted in advance. As a result, bringing a single formulation to market today takes three to five years of trial and error in a lab. Our models predict how a mixture will behave far faster than the standard methods used today, which lets us design new formulations in weeks rather than years, at a fraction of the cost. To prove this, we used them to invent three chemicals that never existed before, including a PFAS-free coolant for datacenters, and we have since synthesized and patented all three. We are already working with some of the largest manufacturers to design formulations for them, and we are building our own lab to generate the data that will train our next models.

Aplicación YC de Rasyn, reconstruida

Solicitud de Y Combinator

Rasyn, batch Summer 2026. Las preguntas reales del formulario, respondidas con datos públicos.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Rasyn

Describe what your company does in 50 characters or less.

Foundational AI models for chemical formulations.

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

We build AI models that predict how chemical mixtures - formulations - will behave, so R&D teams can invent and test new products in silico before ever stepping into a lab. Today, making a new coolant, paste, or glue is a years-long process full of trial and error. With Rasyn, manufacturers can go from concept to a working, manufacturable chemical in weeks. Our models are already used to create real, patented substances, including a PFAS-free coolant for datacenters.

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

We live in San Francisco, CA. The company is based in San Francisco.

Explain your decision regarding location.

San Francisco has most of the people we need to hire and is a hub for both AI and deeptech. We need access to talent in both chemistry and AI; our customers are also here.

21 respuestas más en la aplicación completa

están en la versión completa. Crea una cuenta gratuita para abrirla en YC Insights, junto a cada otro batch de YC.

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Preguntas Frecuentes

¿Es esta la aplicación YC real de Rasyn?

No. Y Combinator mantiene privadas las aplicaciones enviadas. Esta es una reconstrucción: las preguntas reales del formulario de YC, respondidas a partir de los datos públicos de Rasyn (notas de lanzamiento, antecedentes de fundadores, descripción del producto). Muestra cómo una empresa como Rasyn se presentaría a YC, no el texto que enviaron.

¿En qué batch de YC estuvo Rasyn?

Rasyn formó parte del batch Summer 2026 de Y Combinator.

¿Quién fundó Rasyn?

Rasyn fue fundado por Ansh Tiwari, Ayush Chauhan, Daood Hashmi.

¿A qué se dedica Rasyn?

Making chemicals 100,000x faster

¿Cómo leo la aplicación completa reconstruida?

Crea una cuenta gratuita de Round Funded. La versión completa de 26 respuestas de la aplicación de Rasyn, y de cada otro batch de YC, está en YC Insights.