Luminal

Luminal YC Application

Summer 2025Active

Luminal went through Y Combinator in the Summer 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
Summer 2025
Industry
B2BInfrastructure
Team size
5
Status
Active
Launched
2025

Founders

  • Joe Fioti
    Joe FiotiFounder / CEO
  • Matthew Gunton
    Matthew GuntonFounder
  • Jake Stevens
    Jake StevensFounder

What Luminal does

Luminal builds an ML framework and compiler that generates GPU code. Our stack 10x's model speed while simplifying deployment and cutting idle GPU costs Github: Discord:

Luminal's YC application, reconstructed

Y Combinator application

Luminal, Summer 2025 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

Luminal

Describe what your company does in 50 characters or less.

Making AI run fast on any hardware.

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

We are building an ML framework and compiler that generates GPU code to speed up AI models. Our stack makes models run about 10 times faster, simplifies deployment, and reduces the cost of idle GPUs by optimizing how AI workloads use hardware.

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

We live and work in San Francisco, CA, and plan to remain based here after YC.

Explain your decision regarding location.

San Francisco is where the core team is located, and it's an ideal hub for AI infrastructure and cloud computing talent, which is critical to what Luminal builds.

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 Luminal YC application?

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

What YC batch was Luminal in?

Luminal was part of the Y Combinator Summer 2025 batch.

Who founded Luminal?

Luminal was founded by Joe Fioti, Matthew Gunton, Jake Stevens.

What does Luminal do?

Making AI run fast on any hardware.

How do I read the full reconstructed application?

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

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