The One — AI Agent teams on your own computer
Tell the main assistant the outcome you want. Everyday questions get an immediate answer; complex work becomes a dedicated matter carried out by a working group of Agents on your computer. Follow live progress in Theater, inspect every diff in Review, and undo any change in one click.
macOS · Windows
How it works
Three recordings straight from The One: a request becomes a matter, a working group carries it to delivery, and every change can be undone.
Act 01 · Ask
No endless "New chat" tabs — each Space holds one continuous conversation. The main assistant answers quick questions on the spot, or opens a matter with a clear goal and hands it to the right working group. It asks you only what only you can decide.
Act 02 · Follow
Every matter has its own board: Waiting for you comes first, followed by progress, data, files, and checks. Theater shows each Agent thinking, calling a tool, or waiting; Review shows every change it made. Then you make the call: accept, send back with your notes to rework, or give up.
Act 03 · Control
Nothing pauses at every step for your permission. Instead, the Action log records every file Agents change and every address they reach, saving a copy before anything is overwritten or deleted. Undo a single matter or roll back every change since a point in time — and stop all Agents in one click.
Inside the app
Engineering ideas
Prolifera Engineering grows working groups at runtime; A-Genetic Engineering writes a working group down as a template you can reuse, share, and improve.
The main assistant grows working groups at runtime.
In The One, multi-agent work isn't wired up statically — it grows as the task demands. For each matter, the main assistant stands up a working group from a template, or creates and clones specialist Agents from roles. Agents stay around: they sleep when done, wake when needed, and keep durable saved state as their memory.
Stand up a working group from a template, or clone an Agent — config, context, and tools included — into a fresh identity born disconnected and inactive until given work.
One Agent splits bounded work across several in parallel. When context simply grows long, it compacts its history in place instead of dividing.
Each created Agent is a specialist from the start: its instructions, model, skills, and tools come straight from its role.
A finished Agent reports back and goes to sleep rather than vanishing; its resources are reclaimed only when a parent explicitly tears it down.
Honest by design: on its own, the runtime only compacts an Agent's history and puts finished Agents to sleep. Growing the team is the Agent's own call with no global hard cap, so it can run away; by default that authority stays in one Agent, and the whole system stays visible and can be stopped, torn down, and undone.
Read the docsA working group's gene is its template.
Write a working group down in full — every role's instructions, skills, tools, and the handoffs between them — and it becomes a reusable working-group template (Graph). The main assistant runs it for real matters, while in your own Spaces the nightly review and evolution lab keep improving it from real use — every change recorded, measured by readings, and reversible.
A working-group template (Graph): its nodes, and edges whose text is the handoff — when, what to pass, what comes back.
Roles, each with its own instructions, model, built-in tools, External tools (MCP), skills, and Plugins.
The main assistant runs a template for a matter: a working group on that matter's board.
Copy, export or share the Space. Memory goes along when you choose; secrets never do.
A template fixes structure, configuration, and where experience lands — not the outcome, which still depends on the model each run. Every change is recorded and reversible, and whether it helped is settled by readings, never assumed.
Read the docsModels & connections
Starter, Pro, and Max memberships come with official model service quota (powered through OpenRouter) — no API keys to configure, with non-expiring quota packs whenever you need more.
See pricingConnect model accounts you already use — Sign in with ChatGPT for OpenAI Codex, API keys for OpenAI, Anthropic, or Gemini, or any OpenAI-compatible endpoint. Providers bill you directly and no membership quota is used.
Questions
The One is a desktop app for macOS and Windows by The Zeroth. You tell its main assistant what you need; anything bigger than one answer becomes a matter with its own board, handed to a working group of AI Agents that does the work on your computer.
The desktop app runs on macOS 15 or later with Apple Silicon and on Windows (x64). On Linux servers without a screen (x86_64 and arm64), the-one-server runs the same Agents and installs with one command.
Yes. The Agents and their tools run on your Mac or PC and work directly with your files there. Model calls go to the model service you choose, and an Agent reaches external services only through its tools. Every action is recorded in the Action log, and files the Agents changed or deleted can be undone.
A The One membership comes with the official connection (powered through OpenRouter), including models from OpenAI, Anthropic, Google, and others. You can also connect your own ChatGPT account for OpenAI Codex, API keys for OpenAI, Anthropic, or Gemini, or any OpenAI-compatible endpoint.
You can connect your own ChatGPT account or API keys and be billed directly by those providers, or subscribe to a membership at $20, $60, or $200 a month (Starter, Pro, and Max). Every plan unlocks the same features and includes official model service quota; your own model accounts use none of your membership quota.
Software work in your own code projects, research and writing, websites, desktop or mail workflows through Plugins, and recurring work such as daily reports. A working group is a team of Agents defined by a working-group template (Graph); you can edit the ones that come with the app or build your own.
Yes. With triggers, schedules, webhooks, and new mail, orders, files, or page changes can hand work to a working group. Anything that needs your decision or your verdict shows in the strip above the conversation (Waiting for you), and the weekly report looks back at the last 7 days: what was delivered and what it cost.
Read the docs, or browse Spaces shared by the community — roles, skills, and working-group templates ready to preview and import in The One.
