Every coding agent.
One little light.

No. It sits on top of the agents you already use, like Claude Code, Codex, OpenCode and Gemini CLI, and their plans. It shows what they’re doing and passes your answers along. When you ask it to start work, it starts one of them.

Agents on your servers and in October’s cloud keep going, and your iPhone still gets their questions. Agents on the laptop pause with it.

It’s a small app from October, for Mac and Windows (preview), for people using AI coding tools. It finds your running agents, shows which ones need a reply, and helps you answer from one place.

October. We build tools for working with AI agents: October Desktop, a workspace for teams of agents; Harness, an open-source coding agent; Agent Intercom, which lets agents work together; Octo, a friendly helper for your family’s computers; and Moirai, which moves a saved agent session to another tool. Lantern is the smallest of them.

Mac: download the Mac app, open the DMG, and drag Lantern into Applications. Then open Lantern. The download is about 15 MB.

Windows (preview): download the installer (about 17 MB) and run October-Lantern-windows-x86_64-setup.exe, then find October Lantern in the Start menu. No administrator rights needed. Windows may show “Windows protected your PC”: click More info, then Run anyway. (We’re adding code signing soon.) Uninstall from Settings › Apps, or from Lantern’s own Settings › About.

Apple silicon and Intel Macs running macOS 14 Sonoma or later, and Windows 10 and 11 (64-bit) as a preview.

Yes on Windows 10 and 11 (64-bit), as a preview: the same lantern and panel as on the Mac. Linux builds from source for now.

A few things differ on Windows: Open brings an agent’s window forward, not its exact tab, and replies go to agents in Windows Terminal, VS Code, console windows, and sessions Lantern starts. Release notes

No. Keep using Terminal, iTerm2, Ghostty, cmux, VS Code, or tmux. Lantern finds supported agents automatically. You can also start a new agent from Lantern.

Yes. Lantern types your reply straight into the agent’s tab in cmux, Terminal, iTerm2, or tmux, and into sessions it starts. In other terminals, it copies your reply and brings the app forward so you can paste it. You can also Allow or Deny Claude Code permission prompts in cmux, iTerm2, and tmux.

No. Your code and chats stay on your computer unless you connect to October. Lantern checks for updates once a day and sends anonymous usage counts: which features are used, plus an approximate country and city from your IP address. Never messages, prompts, commands, or file names. You can turn usage counts off in Settings. Screenshots are taken only when you turn them on or use Point & Ask, and are saved on your computer; an agent you give one to sends it to its model like any image. Voice typing runs on your computer, and only listens when you turn the mic on.

Only what a feature needs, when you first use it. On a Mac: Automation to type replies in Terminal and iTerm2, Notifications, the Microphone for voice typing, Screen Recording only for screenshots, and Accessibility only if a task should see your open document. Lantern doesn’t need Full Disk Access.

Yes. The app and its engine are on GitHub under the Apache 2.0 license. Builds you make from source send no usage counts.

No. Lantern works on its own. October Desktop is a bigger workspace for working with teams of agents. If you use it, you can connect Lantern to see October’s agents and their questions, reply to them, and open them on the canvas. The connection stays on your computer.

Yes. Install the iPhone app and scan the code Lantern shows. Your agents’ questions arrive as notifications, and you answer from the same Inbox. You can remove a paired phone at any time.

Start the trial with a card. For 3 days you get Lantern’s paid features: Ask Lantern on your own OpenAI, Anthropic or OpenRouter key, up to 20 questions a day on October’s AI, and your iPhone (beta). Then October Pro is $9.99 for your first month and $20/month after, and the full Pro allowances start with that first payment. Cancel anytime in the billing portal, from your October account. The yearly plan ($200 a year) has no trial.

Lantern Lifetime is paid once. It includes Ask Lantern on your own OpenAI, Anthropic or OpenRouter key with no daily limit, up to 20 questions a day on October’s AI, your iPhone (beta), Show me how, and every Lantern app update. It doesn’t include October’s cloud. It’s $149 for the first 100 seats, $199 for the next 100 and $249 for the last 100. Changed your mind? Email hey@october.dev within 14 days for a full refund.

Yes, an October account. Checkout makes one for the email you pay with, so start the 3-day trial or buy Lifetime, then sign in to Lantern with that email. If you already have a paid October plan, sign in and your plan’s extras, like cloud agents, are there automatically. If you cancel the trial, Lantern keeps watching your agents.