cubic
cubic is a YC Spring 2025 (P25) company. Based in London, England, United Kingdom. Team of 5.
About cubic
Summary
cubic builds an AI code review platform for software engineering teams whose pull request volume, accelerated by AI-generated code, outpaces their reviewers. It automatically scans every PR against the full codebase, catches bugs that cross repository boundaries, and converts senior engineers' past review comments into rules that run on every future PR. The platform also restructures how humans review remaining changes, replacing the default alphabetical file order with a logical sequence and generating architecture diagrams.
Business model
A free trial tier plus paid plans, with enterprise available by demo.
Go-to-market
Software engineering teams at companies where code quality is critical adopt cubic self-serve via a two-click install with no credit card required.
From the Y Combinator listing
AI-powered code review platform
Code review is a major bottleneck for software teams, and the rise of AI-generated code is making the problem worse. Reviewing large volumes of code slows devs down, and increases the chances of bugs slipping through. That's why we're building cubic: an intelligent code review platform that helps devs merge PRs 28% faster. How? - When you open a PR, cubic automatically reviews it. It learns from your codebase's patterns, points out bugs, suggesting fixes, and frees you from low-level review tasks. - You then jump into the cubic platform, which is designed to optimize how humans review code. For example, file changes are organized in a logical order instead of alphabetical, and cubic generates diagrams of architecture changes.
Facts
- B2B / B2B -> Engineering, Product and Design
- London, England, United Kingdom
- 5
- Active
- Early
Founders (1)
Score every batch against your own thesis
GPAgent's sourcing agent reads every company in a batch, scores each one against your fund's thesis in a private workspace, and lines up the founders worth meeting before Demo Day. You decide who to contact. Your scores, notes, and pipeline never appear on these pages.
How Accelerator intelligence works