Clone Builder

Build Your Own ChatGPT Clone

Launch a Conversational AI Interface

Create an AI chat application like ChatGPT. Streaming responses, conversation management, prompt templates, and user accounts - all built by AI from your description.

No coding requiredReady in daysOwn your code

Key Takeaways

  • A ChatGPT-style AI chat interface with conversation history can be built with Fabricate
  • System prompt customization, model selection, and conversation management are the core
  • Custom AI chat interfaces let you control the experience, model choice, and data storage
8+
Core Features
Days
Not Months
100%
Code Ownership
Full
Customization
Understanding the Original

What is ChatGPT?

OpenAI's conversational AI interface that allows users to interact with large language models for writing, analysis, coding, and general-purpose tasks.

Why Build Your Own ChatGPT Clone?

Build AI chat interfaces connected to your own models or fine-tuned data
Create domain-specific AI assistants for legal, medical, or educational use cases
Offer branded AI experiences to your customers or employees
Add custom features like document analysis, team workspaces, or compliance logging
Features

Core Features Included

Everything you need to build a fully-functional ChatGPT alternative

Chat Interface

Clean conversational UI with message threading and markdown rendering

Included

Streaming Responses

Token-by-token streaming for real-time AI response display

Included

Conversation History

Save, search, and resume past conversations

Included

Model Selection

Choose between different AI models or configurations

Included

Prompt Templates

Pre-built prompts and system instructions for common tasks

Included

User Accounts

Registration, authentication, and usage tracking per user

Included

Code Highlighting

Syntax-highlighted code blocks with copy functionality

Included

Usage Limits

Rate limiting, token budgets, and subscription tier management

Included
How It Works

Build Your ChatGPT Clone in 3 Steps

1

Describe It

Tell Fabricate what features you want in your ChatGPT clone. Be as specific or general as you like.

2

Generate It

AI builds your complete application with all the features, database, authentication, and payments included.

3

Launch It

Deploy your clone with one click. Start onboarding users and growing your platform immediately.

In-Depth Guide

Building a ChatGPT Clone: Custom AI Chat Interface

A ChatGPT clone is a web interface for AI language models. The technical requirements include a streaming chat interface that shows the AI response as it generates, conversation history with the ability to start new chats or continue previous ones, system prompt customization for persona and behavior, model selection, and user authentication. Fabricate generates AI chat interfaces that connect directly to Anthropic, OpenAI, or Gemini APIs with streaming responses, conversation persistence in D1, and proper API key management.

Chat Interface: Streaming message display with typing cursor, markdown rendering for AI responses, code block formatting, and message copy button.

Conversation Management: Conversation list with titles, new chat creation, conversation search, rename and delete, and conversation export.

Customization: System prompt configuration, model selection (Claude, GPT, Gemini), temperature and token limit controls, and custom personas.

Use Cases

Who Builds ChatGPT Clones?

Entrepreneurs and businesses building in these spaces

Customer Support Bots

AI assistants trained on your product documentation and FAQs

Internal Knowledge Assistants

Company AI tools connected to internal documentation and processes

Educational Tutors

Subject-specific AI tutors for students and learners

Content Creation Tools

AI writing assistants for marketing, blogging, and copywriting teams

I built a custom AI assistant for my team with our internal documentation as context. My team uses it instead of ChatGPT because it knows our products and processes.

Product Manager

Internal AI Tooling

FAQ

Frequently Asked Questions

?Which AI models can I connect?

Fabricate can integrate with OpenAI, Anthropic Claude, Google Gemini, or any API-compatible language model. Describe your preferred model and Fabricate configures the integration.

?Does it support streaming responses?

Yes. Fabricate builds real-time token streaming so responses appear word by word, matching the ChatGPT experience users expect.

?Can I add custom system prompts?

Yes. Configure system instructions that define your AI assistant's personality, knowledge boundaries, and response format for each conversation or template.

?How do I manage usage and costs?

Build token tracking, per-user rate limits, and subscription tiers to control API costs. Usage dashboards show consumption across users and conversations.

?Can I train it on my own data?

You can provide context through system prompts and retrieval-augmented generation. For full fine-tuning, you would work directly with your chosen model provider.

Ready to Build Your ChatGPT Clone?

Stop paying for expensive custom development. Build your own platform with AI in days, not months. Start free today.