How much funding has OpenBuilder raised?

OpenBuilder has raised $2.7M in total funding. Their latest funding round was Seed ($2.2M, Feb 2025). Key investors include Y Combinator, Focal, Founder Factor, Pascal Capital.

Where is OpenBuilder headquartered?

OpenBuilder is headquartered in San Francisco, USA. The company has a team of 2-10 people.

What does OpenBuilder do?

OpenBuilder operates in the AI Developer Tools sector. An AI-native 'vibe coding' platform that enables users to build, iterate, and deploy production-ready full-stack applications using natural language prompts. Reduces the barrier to software creation by replacing manual coding with natural language instructions, while offering a predictable fixed-pricing model to disrupt the volatile credit-based costs of existing AI dev tools.

When was OpenBuilder founded?

OpenBuilder was founded in 2025. It is based in San Francisco, USA.

How much funding has OpenBuilder raised?

OpenBuilder has raised $2.7M in total funding. Key investors include Y Combinator, Focal, Founder Factor, Pascal Capital.

Who is the CEO of OpenBuilder?

Paul Li is the CEO of OpenBuilder. The company was founded in 2025.

Where is OpenBuilder located?

OpenBuilder is headquartered in San Francisco, USA.

What funding stage is OpenBuilder at?

OpenBuilder is currently at the Seed stage.

How many employees does OpenBuilder have?

OpenBuilder has approximately 2-10 employees.

OpenBuilder

Category: AI Developer Tools

An AI-native 'vibe coding' platform that enables users to build, iterate, and deploy production-ready full-stack applications using natural language prompts. OpenBuilder was founded in 2025. The company is led by Paul Li. Based in San Francisco, USA. Team size: 2-10. Total funding raised: $2.7M. Latest round: Seed ($2.2M, Feb 2025). Key investors include Y Combinator, Focal, Founder Factor, Pascal Capital.

Founded: 2025
Headquarters: San Francisco, USA
Team size: 2-10
Total funding: $2.7M

Value proposition

Reduces the barrier to software creation by replacing manual coding with natural language instructions, while offering a predictable fixed-pricing model to disrupt the volatile credit-based costs of existing AI dev tools.

Products and solutions

Natural Language App Builder (Vibe Coding Interface), Automated Full-Stack Deployment Engine, Real-time Preview & Iterative Editing Environment, AI-driven Database & Backend Schema Generator

Unique value

Unlike traditional IDEs or simple code assistants, OpenBuilder focuses on 'vibe coding'—a high-level conceptual approach where the AI manages the entire codebase and infrastructure, coupled with a unique fixed-price subscription model.

Target customer

Non-technical founders, 'vibe coders', rapid prototypers, and developers seeking to accelerate full-stack development cycles.

Industries served

Software Development, SaaS / Startups, Enterprise Internal Tools, No-Code/Low-Code Ecosystem

Technology advantage

Combines generative AI for full-stack architecture with an integrated deployment pipeline, eliminating the need for users to manage servers, databases, or complex Git workflows manually.

How they differentiate

Offers a predictable fixed-pricing subscription model to disrupt the volatile credit-based costs of competitors, combined with a 'vibe coding' philosophy where the AI manages the entire full-stack infrastructure and deployment automatically.

Main competitors

Lovable (formerly GPT Engineer), Replit (Replit Agent), Bolt.new

Key partnerships

Y Combinator (S24 Batch), Focal, Founder Factor, Pascal Capital

Notable customers

Early-stage startup founders, Rapid prototypers, Vibe coders

Major milestones

Accepted into the Y Combinator F25 batch (Fall 2025), Raised $2.2M Seed funding led by Focal to scale the 'vibe coding' platform (April 2026)

Growth metrics

Graduated from the Y Combinator F25 batch; successfully transitioned from accelerator stage to seed-stage growth with a $2.2M capital injection announced April 2026.

Market positioning

AI-native development platform targeting non-technical founders and rapid prototypers seeking production-ready applications.

Geographic focus

North America, Global

Patents and IP

No registered patents disclosed as of latest update; proprietary focus is on LLM orchestration and prompt-to-deployment workflows.

About Paul Li

Paul Li is a three-time founder. He dropped out of the University of Waterloo to co-found Mirage VR, then built EasyCode — a coding assistant installed by 1.5M+ developers (VS Code/JetBrains). He also went through YC with EasyCode and is a YC F25 alumnus.

More AI Developer Tools companies

Official website: https://theopenbuilder.com/