Ren AI · Software engineering intelligence
Ren Code
AI software engineering that understands your codebase.
Powered by Astra, Ren AI's flagship language model — built to understand repositories, reason about architecture, and execute complex development tasks.
How Ren Code works
Two ways in. One engineer.
Whether you are starting from nothing or working inside a codebase with years of history, Ren Code meets you where the work is.
New project
Start a new application from a prompt. Describe the product and Ren Code scaffolds a real, coherent codebase you can keep building on.
- ›Build a SaaS— Auth, billing, dashboard, and a multi-tenant data model — scaffolded and wired.
- ›Build a CRM— Contacts, pipeline stages, activity timelines, and reporting from one description.
- ›Build an inventory platform— Stock tracking, suppliers, purchase orders, and low-stock alerts.
- ›Build a dashboard— Data sources, charts, filters, and a clean analytics layout, ready to extend.
Existing repository
The differentiatorConnect a GitHub repository and Ren Code learns it first — architecture, dependencies, conventions — then generates features, refactors, tests, and pull requests that fit.
GitHub integration
Connect a repo. Ren Code learns it.
A seamless flow from authorization to a reviewable pull request — with you deciding exactly what it can see and what gets merged.
- 01
Connect with GitHub
Authorize Ren Code through GitHub OAuth. Scopes are explicit and revocable at any time.
- 02
Select repositories
Choose exactly which repositories Ren Code can see. Grant access per repo, never blanket.
- 03
Index & analyze
Ren Code builds an understanding of structure, dependencies, and conventions.
- 04
Navigate & understand
Browse files with the model's context alongside — ask how anything works.
- 05
Generate pull requests
Describe the change; review a real PR. You stay in control of what merges.
src/
auth/
billing/
cursor.ts
api/
tests/
Understanding
billing/cursor.ts derives pagination from updated_at. Three call sites depend on it; one does not coalesce nulls.
Repository understanding · illustrative
Ren AI · Flagship model
Astra
Advanced Language ModelAstra is Ren AI's flagship language model — built for reasoning, software engineering, long-context understanding, and agentic workflows.
It is the intelligence layer powering every Ren AI product. Ren Code is the first application built on Astra, and future products will be powered by Astra as well.
Model roadmap
Current generation
The model in active development today, powering Ren Code.
Planned
The next generation — deeper reasoning and broader agentic capability.
Research
Early research directions for where the model goes next.
Research focus
Software Engineering
Resolving real engineering tasks end-to-end, across the files a change actually touches.
Reasoning
Multi-step problem solving with the discipline to admit uncertainty rather than guess.
Agent Systems
Planning, executing, and verifying multi-step work, then returning results that hold up.
Long Context Understanding
Holding large codebases and documents in context so decisions are made globally.
Repository Intelligence
Understanding architecture, dependencies, and conventions as one connected system.
Reliability
Calibrated confidence and consistent behavior — a tool you can trust, not double-check.
Ren Code is the first product powered by Astra.
How we work
A calm, research-oriented way to build software engineering AI.
Evidence over hype
We are early, and we say so. We will not publish benchmark numbers before we publish the harness that produced them. If we cannot measure a claim, we do not make it.
Understanding over autocomplete
Ren Code is built to understand a codebase — its architecture, dependencies, and conventions — before it changes anything. Correctness comes from context, not from guessing the next token.
Reliability over marketing
A confident wrong change is worse than an admitted uncertainty. We design for review: pull requests you can read, reasoning you can inspect, and control over what merges.
Honest about the stage
Ren AI is in active development, building Astra — our flagship language model — and the products powered by it. We would rather show real progress than stage a finished story. The roadmap is the product right now.
Ren Code
Start something new, or pick up where your codebase left off.
Create a workspace, connect a repository, and let Ren Code do the engineering you can review.