You will get ChatGPT or OpenAI API integrated into your website or web app
Project details
Looking to add real AI capabilities to your website or web app — without watching the costs spiral?
I'm a senior full-stack engineer with 9+ years building production systems, specializing in AI integration that's actually efficient at scale. Most "ChatGPT integrations" you'll find are just an API wrapper. Real production AI needs more: model routing, caching, latency control, error handling, and cost optimization.
What you get:
✓ OpenAI API integration (GPT-4, GPT-4o, GPT-4o-mini, or any model)
✓ Custom AI features matched to your business logic
✓ Backend in Node.js, Next.js, or your existing stack
✓ Frontend in React, Next.js, or Vue
✓ Cost optimization through model routing and caching
✓ Streaming, retries, idempotency, structured output
✓ Clean documented source code you fully own
What makes this different:
My most recent production AI system handles hundreds of messages per day with sub-3-second latency — running under $5/month in API costs. The efficiency came from architecture choices: dual-model routing, TTL caching, and specialized response modules.
Multilingual: English, French, Arabic.
Message me first with your use case so I can confirm the scope.
I'm a senior full-stack engineer with 9+ years building production systems, specializing in AI integration that's actually efficient at scale. Most "ChatGPT integrations" you'll find are just an API wrapper. Real production AI needs more: model routing, caching, latency control, error handling, and cost optimization.
What you get:
✓ OpenAI API integration (GPT-4, GPT-4o, GPT-4o-mini, or any model)
✓ Custom AI features matched to your business logic
✓ Backend in Node.js, Next.js, or your existing stack
✓ Frontend in React, Next.js, or Vue
✓ Cost optimization through model routing and caching
✓ Streaming, retries, idempotency, structured output
✓ Clean documented source code you fully own
What makes this different:
My most recent production AI system handles hundreds of messages per day with sub-3-second latency — running under $5/month in API costs. The efficiency came from architecture choices: dual-model routing, TTL caching, and specialized response modules.
Multilingual: English, French, Arabic.
Message me first with your use case so I can confirm the scope.
Programming Languages
PHP, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$300
|
Standard
$800
|
Advanced
$2,000
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 28 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | ||
Content Upload | |||
Responsive Design | |||
Source Code |
About Mamoun
Full Stack Developer
Berriche, Algeria - 11:13 pm local time
I build AI-powered SaaS products that actually work in production — efficient at scale, honest about costs, and designed to last beyond the initial demo.
Most "AI integration" you'll see on Upwork is an API wrapper around ChatGPT. Real production AI is a different problem: model routing for cost control, latency budgets under 3 seconds, idempotency on webhook handlers, caching strategies that survive context window changes, structured output validation, and audit logging for accountability. I do this work daily and carefully.
Steps for completing your project
After purchasing the project, send requirements so Mamoun can start the project.
Delivery time starts when Mamoun receives requirements from you.
Mamoun works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Scope Alignment
I review your requirements, use case, and tech stack. Within 24 hours, I send a clear written scope confirming features, integration approach, and any clarification questions. We align before any code is written.
Architecture & Cost Estimate
I design the technical approach — model selection (GPT-4, GPT-4o, or GPT-4o-mini based on use case), prompt strategy, caching, and error handling. You get a realistic monthly API cost estimate before launch.