Rasyn (YC Summer 2026)

TL;DR: Rasyn is a Y Combinator Summer 2026 startup Making chemicals 100,000x faster, currently active with a team of 3.

Making chemicals 100,000x faster

YC ID
32261
YC Batch
Summer 2026
Status
Active
Team size
3
Industry
Healthcare
Tags
Artificial Intelligence, Deep Learning, Biotech
YC profile
https://www.ycombinator.com/companies/rasyn

Last verified:

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 t…

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Frequently asked questions

Is Rasyn a YC (Y Combinator) company?

Yes. Rasyn was funded by Y Combinator in the Summer 2026 batch. Making chemicals 100,000x faster

What does Rasyn do?

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…

What YC batch was Rasyn in?

Rasyn was part of Y Combinator's Summer 2026 batch.

How big is Rasyn?

Rasyn has a team of 3 people according to Y Combinator's directory.

Is Rasyn still active?

Rasyn is currently listed as Active with a team of 3 in Y Combinator's directory.

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