Sigma Tech

AI software factory

33 AI specialists. One brief. A finished website.

Nebula is our AI software factory: it turns a plain-language brief into a researched, designed, tested and deployable website or web app — with its own admin panel and analytics built in.

  • 33 specialist AI agents
  • 20+ models · 8 providers
  • 60+ websites built
  • Live in as little as 7 days
NEBULA / BUILD ENGINEBRIEF → PRODUCTIONbrief.md> clinic booking website> admin + analytics> english · hindi> live in 7 daysyour-domain.comNEBULAcomposing 8 modulesauthdb schemapaymentsadmin panelanalyticsseoi18nnotificationsDAY 1DAY 7 · LIVEbriefdesignbuildqaliveFULL-STACK · DATABASE-BACKED · YOURS TO OWN

What is Nebula?

Your website, built by an AI studio that grades its own work.

Nebula is how we build websites and web apps. Instead of one generalist, 33 specialist AI agents each take the part they do best — research, architecture, brand, UX, copy, SEO, accessibility, frontend, backend, testing and more — drawing on 20+ models from 8 AI providers.

A vision “art director” then screenshots and scores every page, and anything below the bar goes back for fixes before you see it. You get a modern site with its own admin panel and analytics built in.

Built for

  • SMEs
  • D2C brands
  • Restaurants & clinics
  • Startups needing a SaaS front end

What you get

  • A site researched around your business and competitors
  • A distinctive design from 11 curated design systems — never a template
  • A 14-section no-code admin panel to run it yourself
  • Analytics built in from day one
  • E-commerce, booking, blog, chatbot and more from 21 production blocks
  • Accessibility and performance checked before launch

How it works

From a brief to a deployed site in four stages.

1

Brief & interview

Tell us what you need in plain language. Nebula researches your business and your competitors.

2

Plan

The architect agent picks a design system; the manager splits the work across the specialist agents.

3

Build & polish

Specialists build the site, then copy, CRO, SEO and accessibility passes polish it.

4

Verify & deploy

The vision art director and automated QA verify and auto-fix — then the site is deployed.

The team

33 specialists, each with one job.

Every agent is a specialist — so your copy is written by a copywriter, your schema by an SEO, your tests by a tester.

  • Research analyst
  • Architect
  • Brand identity
  • UI/UX
  • UX psychologist
  • Conversion copy
  • Copywriting
  • CRO
  • SEO
  • GEO / AEO
  • Accessibility
  • Performance
  • Analytics
  • i18n
  • Legal & compliance
  • Frontend
  • Backend
  • Database
  • API design
  • Mobile / PWA
  • Real-time
  • Creative developer (3D)
  • Admin panel
  • Testing
  • Code reviewer
  • Deployment

…and more — 33 specialist agents in all.

Not locked to one vendor

20+ models from 8 AI providers

  • Anthropic Claude
  • OpenAI GPT
  • Google Gemini
  • Mistral
  • Llama & Qwen via Groq
  • Cohere
  • DeepSeek
  • Local models

Researched before it's designed

Nebula studies your business and your competitors first, so the site is built around what your customers need to hear.

Never looks templated

11 curated design systems and industry playbooks give every build its own identity — chosen by the architect agent for your brand.

A specialist for every job

Copy, conversion, SEO, GEO/AEO, accessibility, performance and legal each get their own pass by a dedicated agent.

Run it yourself

A 14-section no-code admin panel ships with the site — catalogue, orders, content, SEO, coupons, a visual editor and more.

Analytics built in

See what visitors do from day one, without bolting on another tool.

Modern, ownable code

Nebula outputs Next.js and TypeScript — a production codebase, yours to own.

Quality control

An art director that never signs off on “good enough”.

Every build is screenshotted on desktop and mobile and scored by a vision art director on nine design dimensions. Anything under 75/100 goes back for fixes.

  • Hierarchy
  • Typography
  • Colour
  • Spacing
  • Motion
  • Responsive
  • Accessibility
  • Imagery
  • Legibility
  • Automated checks for 14 types of visual defect
  • Accessibility tested with axe
  • Performance tested with Lighthouse and Core Web Vitals
RESPONSIVE / 3 BREAKPOINTS1440px768px390pxdesktop768 · tablet390 · mobileADMINno-codePublish pageNew signupsANALYTICS · 7D

What ships with every site

A site you can run — not just look at.

Your site arrives with a 14-section no-code admin panel and built-in analytics, so you can update products, content and offers yourself.

  • Catalogue
  • Orders
  • Reviews
  • Content
  • Analytics
  • SEO
  • Coupons
  • Customers
  • Media
  • Visual editor
  • Social posts

…among the 14 admin sections.

21 production blocks

Proven building blocks, ready to switch on

  • E-commerce with payments
  • Booking
  • Blog
  • Chatbot
  • Legal pages
  • Custom domain

…and more. Output: modern Next.js + TypeScript.

Why it's different

A studio's craft, at a platform's speed.

Specialist AI agents
33Specialist AI agentsResearch to deployment, one job each.
Models from 8 providers
20+Models from 8 providersNot locked to one AI vendor.
Design dimensions scored
9Design dimensions scoredUnder 75/100 goes back for fixes.
Websites built
60+Websites builtWith Nebula.

Grades its own work

A vision art director and automated QA catch what a rushed build would ship.

Never templated

11 curated design systems and industry playbooks keep every site distinct.

Live in as little as seven days

The work is split across specialist agents, so a polished site doesn't take months.

Nebula — frequently asked questions

What is Nebula?

Nebula is Sigma Tech India's AI software factory. 33 specialist AI agents, drawing on 20+ models from 8 AI providers, turn a plain-language brief into a researched, designed, tested and deployable website or web app — with its own no-code admin panel and analytics built in.

Is Nebula a template or a website builder?

No. Nebula researches your business and competitors, picks one of 11 curated design systems and an industry playbook, and has specialist agents write, design and build the site. The result is a custom Next.js and TypeScript codebase, not a theme with your logo on it.

Which AI models does Nebula use?

Nebula works with 20+ models from 8 AI providers — Anthropic Claude, OpenAI GPT, Google Gemini, Mistral, Llama and Qwen via Groq, Cohere, DeepSeek and local models — so it is never locked to a single vendor.

How do you check the quality of what Nebula builds?

Every build is screenshotted on desktop and mobile and scored by a vision 'art director' on nine design dimensions. Anything under 75 out of 100 goes back for fixes. Automated checks also look for 14 types of visual defect, accessibility issues (axe) and performance (Lighthouse and Core Web Vitals).

What do I get at the end?

A deployable website or web app in Next.js and TypeScript, a 14-section no-code admin panel, built-in analytics, and any of 21 production blocks you need — e-commerce with payments, booking, blog, chatbot, legal pages and a custom domain among them.

How long does a build take?

A Nebula build can be live in as little as seven days, depending on scope.

Who is Nebula for?

SMEs, D2C brands, restaurants and clinics, and startups that need a SaaS front end. More than 60 websites have been built with Nebula.

Send a brief. Get a finished website.

Tell us what you need in plain language. Nebula's specialists research, design, build and test it — and you can be live in as little as seven days.