Cloud AI assistant · comparison

00 vs Claude

Claude is Anthropic's cloud assistant, known for strong reasoning. 00 is a free macOS app that lets you build agents you own — and you can still use Claude as the brain, alongside local and other models.

 00Claude
Runs on your Mac / offlineYes — local models run fully offlineNo — cloud service
Where your data livesOn your deviceOn Anthropic's servers
ModelsAny — local, Anthropic, OpenAI, Google & moreClaude models
Number of agentsAs many as you want, each customisedOne assistant (plus Projects)
Messaging channelsWhatsApp, Instagram, Signal, email, phone…Not built in
Claude Code as a brainYes — a first-class engine optionClaude Code is Anthropic's own tool
Encrypted local key vaultYes
PriceFree app — pay providers directly, or nothing for localFree tier; paid plans

Why choose 00

  • Use Claude when you want it, and swap to a local model when you don't — per agent.
  • Your agents, data, and keys stay on your Mac.
  • Reach people on their channels, not just a web tab.
  • Free to run.

When Claude may fit better

  • You want Anthropic's flagship chat experience directly, with no local setup.
  • You don't need ownership, offline use, or channel automation.

Try 00 — it's free.

Build an agent you own in under a minute, on your Mac.

Download for macOS

Frequently asked

Can I use Claude in 00?

Yes — pick the Claude Code engine, or add an Anthropic API key and choose a Claude model for any agent.

Is 00 an alternative to Claude?

It's a different shape: rather than one cloud assistant, 00 gives you multiple agents you own that can run locally and act across channels — and they can be powered by Claude.

Does 00 store my Anthropic key safely?

Yes — keys live in an encrypted, write-only vault on your Mac; agents can see a key's name but never its value.

More comparisons

This comparison reflects 00's perspective and our understanding of publicly available information; other products change often — check their own sites for the latest. 00 is an independent project and is not affiliated with, endorsed by, or sponsored by Claude or its makers. All names and trademarks belong to their respective owners.

← Back to 00

00 is an independent, open-source project created by Bruno Silva. It is not affiliated with, endorsed by, or sponsored by Anthropic, OpenAI, Google, Meta, Ollama, or any other company whose products, names or trademarks are referenced. All product names, logos and brands are the property of their respective owners and are shown only to indicate compatibility. The software is provided “as is”, without warranty of any kind.

* Some channels — Instagram, X, TikTok and other social inboxes — route through Overblast. A few may require a paid Overblast subscription. Native channels (Signal, iMessage, WhatsApp, Telegram, Slack, Discord) need no subscription.

macOS only for now. Windows & Linux are on the roadmap.

© 2026 00 · Free & local-first