CoArena

CoArena YC Application

Summer 2026Active

San Francisco

CoArena 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
B2BEngineering, Product and Design
Location
San Francisco
Team size
2
Status
Active
Launched
2026

Founders

  • Prateek Jannu
    Prateek JannuFounder/CEO
  • Nitish Kovuru
    Nitish KovuruFounder

What CoArena does

CoArena is a live arena where anyone can use the world's top computer-use models racing two of them on the same real computer task and judging which one did it better. Every battle becomes something the AI labs can't build themselves, an honest test of their agents on real work, and the data to make them better.

CoArena's YC application, reconstructed

Y Combinator application

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

  1. Founders2
  2. Company7
  3. Progress7
  4. Idea4
  5. Equity3
  6. Curious2
  7. Batch Preference1

Company

Company name

CoArena

Describe what your company does in 50 characters or less.

Crowdsourced benchmark for real computer-use tasks.

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

CoArena is a live competitive arena for testing computer-use AIs. We let users run two different AI agents head-to-head on the same real computer task, then judge which one performed better. Every match generates a datapoint that AI labs can't build themselves: an honest human-evaluated benchmark on real workflows. Our product is an open, continuous benchmarking engine and dataset for companies building agents for actual computer use.

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

We are based in San Francisco, CA, and the company will remain here after YC.

Explain your decision regarding location.

San Francisco is the center of AI work and most of our early users and collaborators are here. Being local keeps us close to the community we build for.

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 CoArena YC application?

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

What YC batch was CoArena in?

CoArena was part of the Y Combinator Summer 2026 batch.

Who founded CoArena?

CoArena was founded by Prateek Jannu, Nitish Kovuru.

What does CoArena do?

The biggest crowdsourced benchmark for Computer-Use

How do I read the full reconstructed application?

Create a free Round Funded account. The full 26-answer version of CoArena's application, and every other YC batch, is in YC Insights.

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