Biome for macOS

A personal AI agent that works on your Mac.

Ask once. Biome can browse, read files, write code, remember context, and ask before it touches your system.

See real tasks ›
Local-first Bring your own keys macOS 13+
Biome
Chat
Workflows
Agents
Memory
Local agent ready Gemini 2.5 Flash
You

Research the top AI coding tools, compare pricing, and save a markdown report to my Desktop.

Opened sources in Chrome
Read pricing pages
Compared features
Wrote ~/Desktop/ai-tools.md
Ask Biome to do something...
60stypical setup
11+model providers
Localmemory and settings
Approvalbefore risky actions

Real tasks.

Designed around work, not prompts.

Biome is strongest when a request needs several steps across apps, files, and memory.

01

Research with a deliverable

Open sources, compare claims, and save a brief or table where you asked for it.

Browser, files, citations, memory
02

Code changes on your machine

Inspect a repo, edit files, run checks, and stop for approval before sensitive commands.

Terminal, editor, approvals
03

Personal context that persists

Remember preferences, project details, and recurring instructions without making you repeat them.

Saved facts, short-term context

How it works.

One request becomes a managed run.

The interface shows what Biome is doing, what needs approval, and where the result landed.

Ask

Use plain language and attach files when useful.

Inspect

Biome checks the page, repo, file, or connected account.

Act

It browses, edits, writes, or schedules with visible progress.

Confirm

Risky actions pause for your approval before they run.

Why Biome.

A desktop agent has different responsibilities.

When AI can touch your local files and browser, clarity and control matter as much as capability.

FeatureBiomeChatGPTCopilot
Works with local filesNative Mac accessLimited
Controls a real browserLocal relayLimited tools
Requires approval for risky actionsBuilt inVariesVaries
Stores memory locallyOn your MacCloud account
Bring your own model keys11+ providers
macOS-first workflowYesWeb-firstIDE-first

Pricing.

Start free. Upgrade when Biome becomes part of the day.

The free app covers personal local-agent work. Pro adds managed model access and priority support.

01 · Personal
Free
$0 · No card required
  • Full chat, workflows & skills
  • All AI models (bring your own key)
  • File & image attachments
  • Visual workflow builder
  • Community support
03 · Business
Custom
Let’s talk
  • Everything in Pro
  • Shared team workspace Soon
  • Custom privacy controls
  • White-glove onboarding
Contact Us

Download.

Install Biome on your Mac.

Free forever. No credit card. Use your own model key or connect a Biome plan later.

v1.5.0 · macOS 13+
Biome for Mac
Apple Silicon & Intel · 96 MB
Free plan included · Pro plan optional · Cancel anytime

Security note: On macOS, if blocked on first launch go to System Settings > Privacy & Security and click Open Anyway. Learn more →

Security & Privacy.

Clear boundaries for local autonomy.

Your conversations, memory, and API keys live on your machine. Biome asks before sensitive local actions.

Local First, Always

Conversations, memory, and API keys stay on your machine. AI calls go directly from your device to your chosen provider. We only store your email address.

SSRF Hardened

All outbound requests are validated against host allowlists and private-IP DNS checks. The gateway cannot be tricked into fetching from internal hosts.

Exec Approval Required

Every command the AI wants to run requires your explicit approval. Approval timeouts result in a hard block — no silent fallback execution path.

Trust Isolation

External content — webhooks, wake events, runtime notifications — is quarantined as untrusted before entering the AI's context.

Clean Session History

Internal tool data and system metadata are stripped from all user-facing views. What you see in chat is exactly what the model intended.

Rate Limited Backend

Per-IP rate limits on every endpoint. OTP codes expire in 10 minutes and cannot be reused. Everything else runs entirely on your machine.

Full security details ›

Example runs.

What Biome should look like in use.

Research

Compare three tools, cite sources, save a decision memo.

Browser

Open a web app, read the latest state, prepare the next action.

Code

Inspect the project, patch a file, run the narrowest useful check.

Writers
Developers
Designers
Researchers
Students
Founders
Marketers
Lawyers
Analysts
Teachers
PMs
Everyone

Simple
Support.

Get help with setup, model keys, browser control, and local-agent health.

team@biomeai.uk ›

Average response: 2 hours. We're a small team that actually reads every message. No bots, no ticket queues.

Yes — Biome runs on your machine and calls AI APIs directly using your own keys. You can bring keys for Google Gemini (free tier available), Anthropic Claude, OpenAI, xAI Grok, Mistral, or Perplexity. Keys are stored locally, never sent to our servers. Gemini has a generous free tier, so you can get started at zero cost.

The free download gives you the full Biome app — chat, workflows, skills, all AI models (bring your own key), file attachments, and community support. Pro unlocks Browser Control through the local browser relay and lightweight Chrome extension, AI Chat Piggyback, Zero-Knowledge privacy mode, and priority support.

Almost everything stays on your machine. Conversations, memory, and settings are stored locally by the desktop app — never on our servers. API calls go directly from your device to whichever AI provider you choose. We only keep account, billing, and consent records needed to run the service.

Browser Control is a Pro feature that lets your agent open URLs, click elements, fill forms, and read page content in Chrome through Biome's local browser relay and lightweight Chrome extension. It's not required for basic web search — that works without Chrome. Browser Control unlocks deeper automation like reading paywalled content, filling forms, and interacting with web apps.

Biome requires macOS 13 Ventura or later. It runs natively on both Apple Silicon (M-series) and Intel Macs. A Windows version is in active development.

Yes. Cancel anytime from your billing portal with no questions asked. You keep Pro access until the end of your current billing period, then revert to the free tier automatically.

From the blog.

What’s new
in Biome.

May 23, 2026 · Release Notes

Introducing Circle Search and Push-to-Talk Dictation

Circle anything on your screen or hold a shortcut to dictate. Biome 1.5 brings both into the Mac app.

Read article
May 12, 2026 · Release Notes

Biome 1.4 — Persistent Memory Arrives

Your agent now remembers context across sessions — no more repeating yourself. Here’s how it works.

Read article
April 28, 2026 · Engineering

Building a Persona System That Actually Feels Personal

Most AI assistants are generic by design. Biome’s persona layer gives your agent a specific voice, rhythm, and set of habits — here’s how we built it.

Read article
April 2, 2026 · Deep Dive

Why Browser-Native Beats Plugins Every Time

Heavy browser plugins are sandboxed, rate-limited, and constantly breaking. Biome’s local browser relay takes a lighter path — and the difference matters.

Read article