Optimatist AI
LangLang

LangLang

Your assistant, on a host you run.

LangLang is the iOS client. You talk on the phone. The assistant lives on a machine you operate.

This is not ChatGPT in our cloud. Chat goes to your host. We only answer who you are and where the assistant is.

The product

  • iPhone

    Keys on the iPhone

    Identity and keys stay on the phone. Authorization is per scene, can expire, and can be revoked.

  • LinuxMac

    Pair a host you run

    A phone-only install cannot finish chat until a host is paired. Conversation goes there — not through us.

  • OpenClaw

    OpenClaw runtime

    The install adds the OpenClaw plugin. The agent runs on your host.

  • LinuxMac

    Linux and Mac

    The sidecar runs on Linux and macOS. You choose the machine.

How to start

iPhone

On iPhone

LangLang is coming to the App Store. Requires iOS 17 or later. There is no public store link yet — the listing is in progress.

LinuxMacOpenClaw

On the host

After you create an agent on the phone, install and pair.

curl -fsSL https://optimatist.ai/langlangbot/install.sh | bash
langlangbot pair <code>

The phone shows the pairing code. Do not send your recovery phrase.

What stays with you Identity and keys remain on the iPhone. The platform is not here to sell your data.