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I will integrate chatgpt or openai gpt into your website or web app
Mamoun Benhafsa
About this gig
Need ChatGPT or OpenAI integration that works in production without draining your budget?
I am a senior full-stack developer with 9+ years of experience
WHAT YOU GET: ChatGPT and OpenAI API integration (GPT-4, GPT-4o, GPT-4o-mini), Custom AI chatbot tuned to your business, Integration into Next.js, React, Node.js, or Firebase, Dual-model setup for cost optimization, Token usage tracking and analytics, Admin dashboard for prompt management (Premium), Multi-language support (English, French, Arabic), Clean source code and full documentation
WHY ORDER FROM ME:
- 9+ years shipping production web apps
- Real AI systems in active client use
- Cost-conscious engineering ($5/month verified)
- Senior architecture, not copy-paste code
Message me before ordering. I will review your project and recommend the right package.
Get to know Mamoun Benhafsa
Mamoun Benhafsa
I turn messy ideas into shipped SaaS products
- FromAlgeria
- Member sinceMay 2026
Languages
Arabic, English, French
Full-stack developer with 9+ years building SaaS platforms, ERPs, and AI-integrated systems on Next.js, React, Node.js, and Firebase. I specialize in multi-tenant architecture, cost-optimized AI integration (one system runs under $5/month), and Arabic/French/RTL products. I also audit codebases for production-readiness. I turn vague ideas and messy systems into clean, documented, maintainable software. I work independently, communicate clearly, and own projects end to end — from the first sketch to live deployment. Open to remote and contract roles worldwide.
FAQ
Do I need to provide my own OpenAI API key?
Yes. OpenAI requires you to own and pay for your own API key. You create an account on the OpenAI platform and add a payment method. I will set up the integration and configure everything to use your key securely. I can guide you through the setup if needed.
How much will the AI cost to run after delivery?
It depends on usage and model choice. Using GPT-4o-mini, most small business chatbots run between 1 and 10 dollars per month. I configure cost optimization (dual-model routing, smart caching) so you only pay GPT-4 prices when complexity really requires it.
What is the difference between GPT-4, GPT-4o, and GPT-4o-mini?
GPT-4 is the most capable but the most expensive. GPT-4o is faster and cheaper with similar quality. GPT-4o-mini is the cheapest, great for simple tasks. I help you pick the right model for each part of your app to balance quality and cost.
Can you integrate ChatGPT into my existing website or web app?
Yes. I work with most modern stacks, including Next.js, React, Node.js, Firebase, Express, and WordPress. Share your repository or describe your setup, and I will confirm compatibility and the best integration approach before you order.
Can the AI respond in languages other than English?
Absolutely. I have shipped AI systems in English, French, and Arabic, including native RTL interface support. The OpenAI API supports 50+ languages. Please tell me which languages you need and I will tune the prompts for that audience.
Can you train the AI on my own data or documents?
Yes, in two ways: embedding-based retrieval (RAG) so the AI references your documents in real time, or detailed prompt engineering with your business context built in. Full model fine-tuning is also possible as a custom quote.
Do you provide source code and documentation?
Yes. All packages include clean, commented source code and setup documentation. You fully own the code after delivery. The Premium package also includes a deployment guide and a short walkthrough video.
My project sounds bigger than your packages. Can you do a custom quote?
Definitely. Message me with details (current stack, what you want the AI to do, expected message volume) and I will send a tailored proposal. I handle everything from simple chatbots to multi-channel automation systems.
Do you offer support after the project is delivered?
Each package includes a revision period (1 to 3 depending on tier). For longer-term help, I offer a 30-day post-delivery support extra. For ongoing maintenance, we can arrange a monthly retainer outside the order.
Can you also build chatbots for WhatsApp, Telegram, or Discord?
Yes. I have shipped production bots using WhatsApp Business API and Facebook Messenger. Telegram, Discord, and Slack are also possible. Mention which platform you need and I will include it in the proposal.
