If it is the same model, why not use Anthropic's version?

For experiments, do. The gap is packaging and control. Voice activation, accessibility APIs rather than synthetic clicks, an instant stop, a watch only mode, an audit trail, and a bar that tells you what is happening. None of that changes what the model can do. All of it changes whether you use it on a Tuesday.

Can I use my Claude subscription instead of an API key?

Yes. Connect the Claude Pro or Max plan you already pay for through the Claude CLI, or paste an Anthropic or OpenAI key and pay per task. There is no Juno subscription either way.

Is running this on my real Mac safe?

It has the reach you have, including your signed in accounts and your files. That is the honest answer. Juno records every action, flags the sensitive ones, and stops on Escape, but it does not block them today. Start in companion mode if you want to watch before you trust it.

Does Juno work with models other than Claude?

You can paste an OpenAI key today, and more computer use providers are on the way. The app is not tied to one vendor.

Computer use agents

Juno vs Claude Computer Use

Same engine underneath. Juno is the Mac app built around it, with a voice, a stop key and a bar that stays out of your way.

This one needs an admission up front. Juno is built on Anthropic's Computer Use. The intelligence that looks at your screen and decides where to click is the same intelligence. We are not claiming a better model, because it is the same model.

What Juno adds is the product around it. Computer Use is a capability you wire up. Juno is a native Mac app you double click.

The practical differences turn out to matter more than they sound. Juno acts through macOS accessibility APIs first and only drives the physical mouse when a task requires it, so your cursor stays under your hand. Escape cancels mid action. A floating bar shows you what it is doing. And you can start a task by talking rather than typing into a chat window.

Side by side

	Juno	Claude Computer Use
The model doing the thinking	Anthropic Computer Use	Anthropic Computer Use
Native macOS app	Yes, Tauri and Rust	No, a capability you set up
Start a task by voice	Yes, wake word or key	No
How it acts on apps	Accessibility APIs first, mouse only when needed	Screenshot and synthetic clicks
Does it steal your cursor	Not by default	Yes, it drives the pointer
Stop mid action	Escape, immediately	End the session
Watch only mode	Yes, companion mode	No
Audit trail of actions	Yes	Not built in
Local dictation as well	Yes, Whisper on device	No
Cost	Free app, you bring the model	API usage, or a Claude plan
Other operating systems	macOS only	Whatever you host it on

The model doing the thinking
Juno
Anthropic Computer Use
Claude Computer Use
Anthropic Computer Use
Native macOS app
Juno
Yes, Tauri and Rust
Claude Computer Use
No, a capability you set up
Start a task by voice
Juno
Yes, wake word or key
Claude Computer Use
No
How it acts on apps
Juno
Accessibility APIs first, mouse only when needed
Claude Computer Use
Screenshot and synthetic clicks
Does it steal your cursor
Juno
Not by default
Claude Computer Use
Yes, it drives the pointer
Stop mid action
Juno
Escape, immediately
Claude Computer Use
End the session
Watch only mode
Juno
Yes, companion mode
Claude Computer Use
No
Audit trail of actions
Juno
Yes
Claude Computer Use
Not built in
Local dictation as well
Juno
Yes, Whisper on device
Claude Computer Use
No
Cost
Juno
Free app, you bring the model
Claude Computer Use
API usage, or a Claude plan
Other operating systems
Juno
macOS only
Claude Computer Use
Whatever you host it on

Where Claude Computer Use is the better pick

You want to run an agent on Linux or Windows, or in a container on a server. Juno is macOS only.
You are building your own product on top of computer use and want the raw capability, not somebody else's app.
You would rather run it in a throwaway virtual machine than on the Mac with your email signed in. That is a sound instinct and Juno runs on your real desktop.
You do not want a third party app in the path between you and Anthropic.

Where Juno pulls ahead

You talk to it. No chat box, no setup, a wake word and a floating bar.
Accessibility APIs instead of blind clicking means it is faster and it does not fight you for the pointer.
Escape stops it instantly, mid action, which is the feature you want most and think about least.
Companion mode watches and advises without the ability to click at all.
Local Whisper dictation in the same app, on the same trigger system.
The CLI turns the whole thing into an MCP server for Claude Code, Cursor and Codex.

The short version

If you want to experiment with computer use, Anthropic's own path is the right one and it is well documented. If you want computer use as something you actually reach for during the workday, without setup, started by voice and stoppable with one key, that gap is the product.

Questions people ask

If it is the same model, why not use Anthropic's version?: For experiments, do. The gap is packaging and control. Voice activation, accessibility APIs rather than synthetic clicks, an instant stop, a watch only mode, an audit trail, and a bar that tells you what is happening. None of that changes what the model can do. All of it changes whether you use it on a Tuesday.
Can I use my Claude subscription instead of an API key?: Yes. Connect the Claude Pro or Max plan you already pay for through the Claude CLI, or paste an Anthropic or OpenAI key and pay per task. There is no Juno subscription either way.
Is running this on my real Mac safe?: It has the reach you have, including your signed in accounts and your files. That is the honest answer. Juno records every action, flags the sensitive ones, and stops on Escape, but it does not block them today. Start in companion mode if you want to watch before you trust it.
Does Juno work with models other than Claude?: You can paste an OpenAI key today, and more computer use providers are on the way. The app is not tied to one vendor.

Free, and the source is public. macOS 14+.

Download Juno