Cartpole YC Application
Cartpole went through Y Combinator in the Spring 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
- Spring 2025
- Industry
- B2B
- Team size
- 1
- Status
- Active
- Launched
- 2025
Founders
Mateo PerezFounder
What Cartpole does
We're creating reinforcement learning environments for training frontier models.
Cartpole's YC application, reconstructed
Y Combinator application
Cartpole, Spring 2025 batch. The real form questions, answered from public data.
- Founders2
- Company7
- Progress7
- Idea4
- Equity3
- Curious2
- Batch Preference1
Company
Cartpole
Building reinforcement learning environments
We build and maintain reinforcement learning environments to train frontier AI models. Our product provides the controlled, customizable simulations that researchers and companies need to develop and test advanced reinforcement learning algorithms. We focus on reliability and data quality to accelerate RL training workflows.
We currently live in San Francisco, CA and plan to base the company here after YC.
San Francisco is where the AI and ML research and development community is concentrated. Being here lets us stay close to users and partners.
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.
Frequently Asked Questions
Is this the real Cartpole YC application?
No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Cartpole's public data (launch notes, founder backgrounds, product description). It shows how a company like Cartpole would present itself to YC, not the text they submitted.
What YC batch was Cartpole in?
Cartpole was part of the Y Combinator Spring 2025 batch.
Who founded Cartpole?
Cartpole was founded by Mateo Perez.
What does Cartpole do?
Building reinforcement learning environments
How do I read the full reconstructed application?
Create a free Round Funded account. The full 26-answer version of Cartpole's application, and every other YC batch, is in YC Insights.
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