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JUWEL · In beta

Meet JUWEL.

JUWEL is the AI you talk to, made by Vext Labs. Gems are the AI models we are building for JUWEL. Stones are helpers that do tasks for you.

Screenshot of the JUWEL front door on a phone as a guest, taken 2026-10-17. It asks “What are we doing today?” and shows two starter buttons and a message box.
Screenshot of the JUWEL front door on juwel.ai as a guest, taken 2026-10-17. It asks “What are we doing today?” and shows two starter buttons and a message box.
A design of the “What JUWEL knows” screen. It shows saved items, each with a delete button, and an undo message after one is removed.

Left and centre: screenshots of juwel.ai as a guest, 2026-10-17 · Right: a design of the memory screen, not a screenshot · See what JUWEL does today on juwel.ai

Today and next

What is live, and what is not.

What is live, and what is not.
StatusWhatDateSource
LiveChat, private chat, memory you control, history, and approvals on connected actions.juwel.ai
LiveTranscript export, and free chat that moves to another provider when one is down.Changelog
LiveScoped agent keys: requested scopes only, shown once, revocable, with an activity log.Developers
LiveAn MCP endpoint, direct tool calls and a CLI bridge, documented and answering.Developers
ComingGems with open weights. Not released.Gems
ComingStones, the helpers that do tasks for you. Not a shipped feature.Roadmap
ComingVKP as open source. Today it is a draft spec.VKP
ComingThe Fusion Gateway. Not live.Fusion Gateway
ComingAn SDK and a CLI under the JUWEL name.Roadmap
ComingSigned approval receipts shown in the app.Roadmap

Design goals from our JUWEL design rules (2026-09-24)

Ask. Remember. Forget.

  • 01 / Ask

    Start typing.

    You get a first reply before you sign up. Starter ideas are there if you want them. There is no tour.

  • 02 / Remember

    Only after you say yes.

    A list called “What JUWEL knows” shows everything it keeps, and the day it learned it.

  • 03 / Forget

    One item, or everything.

    Remove things from the list, or just say “forget that”. If you delete a chat, its memories still show in the list.

Not yet measured in the app

How an approval works

No approval, no action.

  1. 01

    A call comes in

    An effectful tool call arrives with a key.

  2. 02

    APPROVAL_REQUIRED

    The server refuses until a person approves.

  3. 03

    A person approves

    The exact call, on an approval card.

  4. 04

    One nonce, spent once

    The server spends it and runs the call.

Trust and privacy →

Launching with · As of 2026-09-24

Your personal AI factory.

Four things will launch together. We will not call any of them live until a dated release note says so.

  • The JUWEL appAt launch
  • A personal micro-cloudAt launch
  • The open-source VKP kernelAt launch
  • The developer APIAt launch

The Fusion Gateway sends each request to a model. VKP will be the open-source core JUWEL runs on.

From the lab on JUWEL

  • Meet JUWEL

    What JUWEL is and who it is for.

    Read →
  • How JUWEL remembers

    What it keeps, what it skips, and for how long.

    Read ↗

Common questions

About JUWEL.

Is JUWEL an agent?

No. It is an assistant you talk to. It can be lent narrow, approved agency: connected actions wait for your yes.

Does JUWEL need an account?

No. You can start as a guest and get a first reply before you sign up.

Which actions ask first?

Connected actions wait for your approval. Today the server-gated set is a calendar event and a mail draft.

What is not live yet?

Gems open weights, Stones, VKP as open source and the Fusion Gateway are coming, not live.

Built on work you can check.

We show how we test each idea, what we found, and where it stops working.

What this page does not claim.

Research stays research. Our papers test ideas on tiny models and regular computers. They are not a list of JUWEL features.

Screenshots and designs are labelled. The front door is a dated screenshot of the live app. The memory screen is a design, not the real app. See the real app on juwel.ai.

Start with what you want.

See access and pricing on juwel.ai.