OpenSpec YC Application

Winter 2026Active

OpenSpec went through Y Combinator in the Winter 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: Winter 2026
Industry: B2B
Status: Active
Launched: 2026

Founders

Tabish BidiwaleFounder

What OpenSpec does

OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, without dragging teams into rigid, bureaucratic workflows.

OpenSpec's YC application, reconstructed

Y Combinator application

OpenSpec, Winter 2026 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

OpenSpec

Describe what your company does in 50 characters or less.

Plan mode for complex features

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

We've built an open-source, spec-driven framework that helps developers plan complex features with lightweight spec documents serving as durable context for coding agents. It makes planning iterative, lightweight, and fits how real software gets built: messy and evolving, without rigid processes.

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

The company is not based in a fixed location yet.

Explain your decision regarding location.

The product is fully remote and anyone can use it from anywhere. We haven't fixed a location because the focus is on building a tool that fits developers wherever they are.

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 OpenSpec YC application?

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