Atrix AIBeta

The builder agent forfounders building morethan one thing

Atrix AI keeps a workspace per venture, holds the context, and turns a conversation into the artefacts that actually move a startup forward — PRDs, specs, scaffolded code and copy.

Get access Talk to an engineer

atrix-builder · padel-marketplaceDemonstration

You

I'm building a marketplace for padel courts. Write the PRD.

list_documents

Clarifying scope and users

write_document · PRD

scaffold_file · schema

CreatedPRDCODE

Four moments from one real project. Pick any order — the agent keeps the context either way.

What it produces

Documents, not vibes

Everything the agent writes lands in your project as a real, editable document you can hand to an engineer, an investor or a designer.

PRD

Product requirements

SPEC

Technical specs

CODE

Scaffolded files

MARKETING

Marketing copy

DOC

General docs

How it works

Four steps, then engineers

Create a project

Every startup you are running gets its own workspace. Context stays separated, so the agent never confuses one venture with another.

Talk it through

Describe what you are building in plain language. The agent asks about constraints, users and scope before it writes anything.

It writes the artefacts

PRDs, technical specs, marketing copy and scaffolded code land as documents in the project — versioned, editable and yours.

Hand off to engineers

When the plan is real, our engineers pick it up with the full document trail attached. No re-explaining from scratch.

Under the hood

It has hands,not just opinions

The agent calls real tools against your project. It reads what already exists before it writes, so the second document is consistent with the first.

list_documents

Sees every document in the project, so it starts with your context rather than a blank page.

read_document

Reads an existing spec or PRD in full before it changes anything.

write_document

Creates a new document in the project — a PRD, a spec, marketing copy.

update_document

Revises a document in place, so your work evolves instead of fragmenting.

scaffold_file

Generates real starter files for the stack you are building on.

Models

Pick the brain for the job

Anthropic

Claude Opus 5

Deepest reasoning

Anthropic

Claude Sonnet 5

Balanced default

Anthropic

Claude Haiku 4.5

Fastest and cheapest

OpenAI

GPT-5

A second opinion

The obvious question

Why not just usea chatbot?

A general chatbot

Atrix AI

Remembers your project

You re-paste context every session, and it drifts.

✓Each venture is a workspace. The agent reads what already exists before it writes.

Produces real artefacts

You copy answers out of a chat window into somewhere else.

✓Documents are created and versioned in the project — PRD, SPEC, CODE, MARKETING.

Revises instead of restating

A new answer each time, leaving you to reconcile the versions.

✓It updates the existing document in place, so there is one source of truth.

Ends with engineers

The plan stops at the plan.

✓Hand the document trail to our team and the same context carries into the build.

Questions

Before you ask

Is this just a wrapper around ChatGPT?+

No. It is an agent with tools that act on your project — it lists, reads, writes and updates documents, and scaffolds files. You choose which model runs underneath, and the value is in the project context and the artefacts, not the chat window.

What happens to what I type?+

Your prompts are sent to the model provider you selected — Anthropic or OpenAI — to generate a response. Documents and project data are stored in our database against your account. The full detail is in our Privacy Policy.

Can I use it for more than one startup?+

That is the point. Each venture gets its own project and its own context, so the agent never mixes one company's decisions into another's documents.

Do I still need engineers?+

For anything real, yes. Atrix AI is very good at getting from an idea to a defensible plan and starter code. Shipping and running production software is what our engineering team is for — and the handoff is the point.

How do I get access?+

Atrix AI is in beta and included with a SPARK or BLAZE plan. If you are not sure which fits, talk to an engineer first — we would rather point you at the right thing than sell you the wrong one.

Stop re-explainingyour own startup

Atrix AI is included with a SPARK or BLAZE plan. If you would rather have humans build it, that conversation is free.

See plans Talk to an engineer

Atrix AI is in beta. The console above is a demonstration of a session, not live output.