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The AI Workspace: build with the Builder chat

The AI Workspace is where you work with AI in Mass. It opens full-screen and is built around the Builder chat, which shows its reasoning and tool steps as it works. This guide covers the Builder chat, the side canvas, editing by chat, custom Experts and Skills, Recipes, and the model catalog.

8 min read · Updated for the current release

On this page

  • Opening the AI Workspace
  • The Builder chat
  • The side canvas, artifacts & status bar
  • Editing by chat & AI-written funnels
  • Custom Experts & Skills
  • Recipes
  • Models & API keys
  • A smarter App Builder chat

Opening the AI Workspace

The AI Workspace has its own top-level entry in the sidebar.

Click AI Workspace in the sidebar to go straight to it. On plans that do not include it, the menu item shows a Pro badge.

The workspace opens edge to edge, without the dashboard header and side navigation around it.

The Builder chat

The AI Workspace opens on the Builder, which streams the AI's reasoning and each tool step as it works.

What the Builder creates is shown inline in the chat. Choose the model for the chat from the full model catalog with the model picker.

  • Workspace data in chat — the Builder chat can look up information from your workspace to answer questions. It only reads data and does not change anything.
  • Live updates — changes the AI makes to your workspace appear instantly in every open tab.

The side canvas, artifacts & status bar

See what the AI builds next to the chat, and keep track of everything it has made.

  • Side canvas — when the AI starts a build or brings an artifact forward, a resizable canvas slides in next to the chat.
  • Open in canvas — artifacts in the chat show an Open in canvas button.
  • Artifacts and Manage view — see everything the AI has created in your workspace with previews, and browse the funnels, experts, and products you have already built.
  • Status bar — Versions, Workers, Plans, and Artifacts tiles show live counts, with details one click away.

Editing by chat & AI-written funnels

Ask the AI to change something it already built, and it edits that artifact in place instead of starting over.

This works for funnels, products, documents, emails, and ads. For example, ask the AI to change a headline on a funnel it already built and watch it update in the side canvas.

  • AI-written sections — funnels built in the Builder chat get AI-written copy for each section instead of placeholder text.
  • Build progress — while a funnel is built, the section list shows a progress track, a live Building cue, and a done/total count.

Custom Experts & Skills

Create your own AI experts and give them reusable skills.

You'll find the Experts Library and Skills Library under AI Setup in the sidebar.

  • Experts Library — browse, create, clone, edit, and delete custom AI experts, each with its own persona, model, allowed tools, and attached context. Create an expert once, then clone it for each client.
  • Skills Library — write reusable skills and choose which tools each expert can use them with. Write a skill once and let several experts use it.

Recipes

Recipes are multi-step workflows that run a series of experts in order.

Run a recipe from the Recipes tab and follow its live step-by-step progress, or create and edit recipes with their own inputs and steps. The Recipes Library page in the sidebar lets you create, run, and manage your recipes.

  1. 1

    Finish a chat that worked

    Use the Builder chat to get a result you want to repeat.

  2. 2

    Save chat as Recipe

    Turn the Builder chat into a reusable recipe. Repeated values are suggested as inputs.

  3. 3

    Confirm the inputs

    Review the suggested inputs and confirm them before saving.

  4. 4

    Run it again

    Run the recipe with new inputs whenever you need it.

Models & API keys

The model catalog and API Keys settings cover the latest GPT, Claude, DeepSeek, Nanobanana, VEO, and Seedance models.

  • Expanded catalog — adds GPT-5.5, GPT-5.6 SOL, Image GPT 2, Claude Opus 4.7 and 4.8, Claude Sonnet 5, Claude Fable 5, DeepSeek V4 and V4 Flash, Nanobanana 2, Google VEO 3 and 3.1, Seedance 2.0, Replicate, and Fal, each with its logo.
  • API Keys — integration cards in Settings show the correct provider logos and include cards for the newly supported providers, so you can add your own keys.

A smarter App Builder chat

The same release made the App Builder chat more context-aware.

In the App Builder, the AI chat can see the page you are previewing, every changed file links straight to its page in the preview, and new Supabase projects are set up and connected for you. See the App Builder guide for details.

Keep reading

App Builder: a chat-first AI IDEOMEGAFunnelsAI Onboarding & LaunchCreditsChangelog
Mass

Other platforms hand you blank pages. Mass delivers complete, revenue-ready systems — copy, design, funnels, and automations — from a single chat.

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