Traceloop YC Application

Winter 2023Acquired

Traceloop went through Y Combinator in the Winter 2023 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: Winter 2023
Industry: B2B
Team size: 9
Status: Acquired
Launched: 2023

Founders

Nir GazitCo-Founder & CEO
Gal KleinmanFounder

What Traceloop does

Traceloop gives you full visibility into every prompt, response, and failure. Track quality, detect drift, and stop hallucinations before they reach your users. Powered by OpenTelemetry, integrated in one line.

Traceloop's YC application, reconstructed

Y Combinator application

Traceloop, Winter 2023 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Traceloop

Describe what your company does in 50 characters or less.

Know what your LLM is doing - and why it's failing

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

We built Traceloop to give developers full visibility into their large language models' behavior. Our product tracks every prompt, response, and failure in real time. It helps teams monitor quality, detect drift, and catch hallucinations before they impact users. It integrates in one line with OpenTelemetry, making it easy to install and scalable across AI-powered applications.

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

We live and operate in Tel Aviv-Yafo, Israel, and the company would remain based here after YC.

Explain your decision regarding location.

Tel Aviv has a strong tech community and talent pool for AI and developer tools. Both of us live here and want to build locally while connecting globally through YC.

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.

See full application

Frequently Asked Questions

Is this the real Traceloop YC application?

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