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Case Study / AI / Web Application

Four AI / 10 weeks

AI Voice & Image Generation Platform

A full-stack platform for AI voice generation, text-to-speech, voice changing and image generation — React and Vite frontend, serverless API and PostgreSQL.

  • 4 AI tools in one product. Voice generation, TTS, voice changing and image generation.
  • 6+ Audio effects. Robot, echo, reverb, distortion, tremolo and lowpass.
  • Live Deployed on Vercel. Serverless API with Neon PostgreSQL at four-ai-dev.vercel.app.
  • React
  • Vite
  • Hugging Face
  • Neon PostgreSQL
  • Vercel Serverless
Four AI — AI Voice & Image Generation Platform

Overview

Client Overview

Personal project — full-stack AI product built end to end

Services provided

  • AI Product Development
  • Web Application Development
  • Full-Stack Web Development
Client
Personal project — full-stack AI product built end to end
Industry
Software / AI
Timeline
10 weeks
Year
2026
Platforms
Web application
Team
1 engineer

Challenge

Business Challenge

The situation before the engagement, in the client's terms.

Building AI tools is one thing; packaging them as a product is another. The platform needed accounts, usage tracking and moderation alongside genuinely useful generation tools.

  • 01

    Model wiring

    Voice, TTS and image models each needed clean integration and error handling.

  • 02

    User management

    Sign-up, login, password reset and profile management end to end.

  • 03

    Moderation

    Admins needed visibility into users and the power to ban.

  • 04

    Smooth UI

    Generation tools had to feel instant, with glassmorphic polish.

Objectives

Engagement Objectives

What the build needed to achieve before implementation began.

  • Package four AI generation tools into one coherent product

  • Make the full account loop work — sign-up through usage history

  • Give admins moderation controls without exposing them publicly

  • Keep the UI fast and polished across every studio screen

Solution Design

How We Solved It

The approach that addressed each challenge above.

Four tools, one product. Each generator got a dedicated studio screen, and the account system wraps them into a single product with history and moderation.

  • 01

    Dedicated studios

    Separate screens for voice, TTS, voice change and image generation.

  • 02

    FLUX image engine

    Hugging Face FLUX.1 models generate images from text prompts.

  • 03

    Full account loop

    Auth, profiles, settings and per-user usage history.

  • 04

    Admin panel

    Environment-gated admin login with ban and unban controls.

Capabilities

Key Features

What Four AI does in day-to-day use.

  • Voice generator

    Natural-sounding speech generated from any text via the Web Speech API.

  • Text to speech

    Multiple voices and languages, with language selection per conversion.

  • Voice changer

    Robot, echo, reverb, distortion, tremolo and lowpass effects on uploaded audio.

  • Image generation

    Text-prompt image generation with Hugging Face FLUX.1 models.

  • Accounts & history

    Sign-up, login, password reset, profile management and usage tracking.

  • Admin moderation

    Admin login via environment password with user list and ban/unban.

Technology Stack

Technology Stack

  • React
  • Vite
  • Tailwind CSS
  • GSAP
  • Framer Motion
  • Web Speech API
  • Hugging Face FLUX.1
  • Audio effects engine
  • Vercel Serverless Functions
  • Node.js
  • Neon PostgreSQL
  • Usage history
  • User management

Outcome

Results & Outcome

What changed for the business after launch.

  • 4

    AI tools in one product

    Voice generation, TTS, voice changing and image generation.

  • 6+

    Audio effects

    Robot, echo, reverb, distortion, tremolo and lowpass.

  • Live

    Deployed on Vercel

    Serverless API with Neon PostgreSQL at four-ai-dev.vercel.app.

Interface

A Closer Look

Screens from the delivered system.

  • Four AI home page
    The dark, glassmorphic landing page for the platform.
  • Sign-up screen
    Account creation with the platform's visual style.
  • Voice generator studio
    The voice generation tool in action.

Conclusion

The Result

Four AI ships as a working product: users can generate speech, change voices, and create images from prompts, with accounts, usage history, and admin moderation — all behind a polished glassmorphic UI.

  • 4 AI tools in one product: Voice generation, TTS, voice changing and image generation.
  • 6+ Audio effects: Robot, echo, reverb, distortion, tremolo and lowpass.
  • Live Deployed on Vercel: Serverless API with Neon PostgreSQL at four-ai-dev.vercel.app.

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