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Google's Beta AI Stack: Stitch, Pomelli, Opal, and Whisk
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Google's Beta AI Stack: Stitch, Pomelli, Opal, and Whisk

Google Labs ships four free AI beta tools: Stitch for UI design, Pomelli for marketing, Opal for no-code apps, and Whisk for image blending.

LB
Luca Berton
· 5 min read

Google Labs is in the middle of a quiet productivity revolution. Rather than announce a single monolithic AI product, Google is shipping four small, focused beta tools that each solve one layer of the creation pipeline — and they are all free to try right now.

They map to distinct stages of building something from scratch:

StageToolWhat it does
DesignStitchTurn a prompt into UI designs and frontend code
MarketingPomelliRead your site, build brand DNA, generate on-brand content
AutomationOpalNo-code AI mini-apps from natural language
VisualsWhiskBlend subject + scene + style into new images

They are experiments, not finished products. But together they sketch what Google’s AI-assisted workflow could become.

Stitch: From Prompt to UI in Seconds

Stitch is Google’s AI-native design canvas. You write a text prompt describing an app or interface, and Stitch generates a visual design plus the HTML/CSS code behind it — in minutes.

What it does well:

  • Generate mobile and web UIs from a single text prompt
  • Export to Figma with proper Auto Layouts and named layers
  • Generate multiple design variants for rapid exploration
  • Export clean HTML/CSS (including Tailwind) that developers can use as a starting point
  • Recent MCP server integration lets AI coding agents (like Antigravity) connect two-way with Stitch designs

What it does not do:

  • Stitch does not generate backend logic or database schemas
  • Designs are starting points, not final products — you still need design refinement and development
  • It is in beta, so features and availability change

The most compelling use case is rapid prototyping: describe an idea, get a visual mockup and exportable code, iterate quickly. The MCP integration is the interesting technical development — it creates a feedback loop where your coding agent can read Stitch designs and make direct layout edits.

Where Stitch fits: Early-stage design exploration and developer handoff. If you are sketching app ideas and need something clickable fast, Stitch cuts the design-to-code gap significantly.

Pomelli: Your Brand DNA, Automated

Pomelli does something different. Instead of generating from a blank prompt, it reads your existing website and builds a Business DNA profile — capturing your tone of voice, fonts, imagery, and color palette. Then it generates on-brand social posts, ads, and campaign assets that actually match your existing look and feel.

What makes Pomelli different:

  • Brand extraction happens first — no guessing at colors or tone
  • Generates social posts, ad copy, and visual assets consistent with your brand
  • Has a Photoshoot feature that turns flat product photos into studio-style imagery
  • Free during beta with several hundred image and video generations

Pomelli is aimed at small businesses that cannot afford an agency. If you have a website, it can produce a consistent stream of marketing content without you writing a single brief.

Where Pomelli fits: Small business marketing and rapid content creation. If you are spending hours crafting Instagram posts that match your brand, Pomelli can produce first-pass drafts in seconds.

Opal: No-Code AI Mini-Apps

Opal is Google’s answer to no-code workflow builders, but with AI baked in from the start. You describe an app in natural language, and Opal builds a multi-step workflow — chaining prompts, model calls, and tools together — that runs as a shareable mini-app.

Key capabilities:

  • Write natural language descriptions; Opal builds the workflow visually
  • Chain together steps: user input → AI generation → tool calls → output
  • Built-in tools include web search, maps, weather, and more (via the @ prefix)
  • Apps are shareable immediately — no hosting or deployment needed
  • Runs on a Gemini 3 Flash agent

Opal is closest to what you might use n8n or Zapier for, but designed for AI-native tasks from the ground up. The visual editor lets you see and tweak every step, and the natural language editor lets you iterate by simply describing changes.

Where Opal fits: Prototyping AI-powered workflows and mini-apps. If you have a repetitive task that involves searching the web, processing text with an LLM, and producing an output, Opal can turn that into a shareable app without writing code.

Whisk: Image Blending, Not Prompting

Whisk takes a visual-first approach to image generation. Instead of writing prompts, you drag in three images — a subject, a scene, and a style — and Whisk blends them into something new using Gemini and Imagen 3.

How it works:

  • Subject — a person, pet, object, or character
  • Scene — the environment or background
  • Style — artistic treatment (Sticker, Plushie, Capsule Toy, Enamel Pin, Chocolate Box, Card)
  • Optional text can refine the result

This removes the barrier of prompt engineering entirely. A designer can drop in a character sketch and a watercolor reference and get a styled illustration in seconds. The preset styles feel genuinely fresh — not just “realistic” or “anime,” but specific aesthetics like enamel pins or capsule toys.

Where Whisk fits: Rapid visual exploration for designers, content creators, and marketers who want to iterate on aesthetics fast. It is not a replacement for professional illustration, but it is a powerful brainstorming tool.

The Full Stack, Together

What excites me about these four tools is that they can chain together:

  1. Ideate with Stitch — get a visual UI concept and exported code
  2. Brand it with Pomelli — extract brand DNA and generate on-brand assets
  3. Automate with Opal — build workflows that combine web data, AI processing, and your Stitch-generated UI
  4. Visualize with Whisk — create promotional images and social assets from your app’s actual design

None of them requires a paid plan. None of them is production-critical — they are all experiments that Google can sunset. But for creators, startups, and small teams, the combination is powerful: you can go from idea to a branded, automated, visually rich mini-product using only free Google tools.

Honest Limits

These are beta experiments, and Google has a track record of sunsetting Labs projects. The tools also require a Google account and are available in English only, for users 18+. Feature availability varies by country.

My recommendation: start with the one layer that matches your biggest gap. Designers should try Stitch. Marketers with an existing site should try Pomelli. Builders of workflows should try Opal. And if you just want to play with AI image generation, Whisk is the most intuitive entry point.

All four are free to try at stitch.withgoogle.com, labs.google.com/pomelli, opal.withgoogle.com, and labs.google/fx/tools/whisk.


Related Resources:

Frequently Asked Questions

What is Google Stitch?

Google Stitch is an AI-native design canvas from Google Labs that turns natural language prompts, sketches, or screenshots into editable UI designs and production-ready frontend code for mobile and web. It runs on Gemini models and is free to use during its beta with daily credits.

Is Google Stitch free?

Yes, Stitch is currently free to use. It operates on a daily credit limit that resets at midnight UTC. Credits and usage details are available in the Stitch settings page.

What is Pomelli by Google?

Pomelli is a Google Labs tool that reads your existing website and builds a Business DNA profile — capturing tone of voice, fonts, imagery, and color palette — then generates on-brand social posts, ads, and campaign assets from it.

What is Google Opal?

Opal is Google's experimental no-code platform for building AI mini-apps. You describe what you want in natural language, and Opal builds a multi-step workflow of prompts, model calls, and tools that runs as a shareable app — no code required.

What is Google Whisk?

Whisk is Google's experimental image generation tool that creates new images by blending three visual inputs: a subject, a scene, and a style. It uses Gemini and Imagen 3 to produce unique artwork without complex text prompts.

#Google #Google Labs #Stitch #Pomelli #Opal #Whisk #AI Tools #Gemini
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Luca Berton — The Production AI Expert, Docker Captain

Luca Berton

The Production AI Expert · Docker Captain · KubeCon Speaker

15+ years in enterprise infrastructure. Author of 8 technical books, creator of Ansible Pilot (1M+ YouTube views, 648K site users). Former Red Hat engineer. Speaker at KubeCon EU 2026 and Red Hat Summit 2026.

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