Conversational AI for automated research interviews
- 48 hrs
- from interview completion to usable insights
ChatGPT Integration Services
ChatGPT is a product. The OpenAI API is the infrastructure behind it. What most businesses need is not ChatGPT, they need GPT-4o or GPT-4 Turbo integrated into their specific application, trained on their data, and delivering outputs their users can act on.
We integrate the OpenAI API into your existing web app, mobile app, or internal tool, adding AI capabilities grounded in your data, constrained to your use case, and working reliably in your production environment.
OpenAI API integration: GPT-4o, GPT-4 Turbo, GPT-4o mini
RAG pipelines connecting the model to your knowledge base and documents
Function calling for tool use and structured data extraction
Streaming responses, cost management, and production monitoring
Recent outcomes
Conversational AI · Market research
48 hrs to insights
Built a conversational AI that runs automated research interviews, delivering usable insights within 48 hours of interview completion.
AI OCR · Gas station operations
20K+ in a single day
Integrated an AI document-processing pipeline that handled 20,000+ transactions in a single day with manual errors eliminated.
The problem
Want to add AI to your product but don't know how to connect it to your data?
Built a ChatGPT integration that works in demo but hallucinates in production?
Short answer
RaftLabs integrates OpenAI GPT-4o, GPT-4 Turbo, and GPT-4o mini into web apps, mobile apps, and internal tools for clients across the US, UK, Europe, Canada, GCC, South Africa, and Southeast Asia. 20+ AI products shipped. Fixed cost from $20,000 before development starts.
Key takeaways
Trusted by


The team connected the OpenAI API, wrote a system prompt, and the assistant answered every question in the pitch meeting. Then it shipped. A customer asked about a refund policy the model had never seen, and it invented one. Another asked for last quarter's numbers, and it made them up with total confidence.
Nobody had grounded the model in the company's actual data, validated a single output, or set a budget alert. The integration worked right up until it faced a question the demo never asked.
The API call is the easy 10 percent. The other 90 percent is what makes it survive contact with real users.
Most ChatGPT/OpenAI integrations that fail in production share a common pattern: the team connected the API, wrote a system prompt, and shipped. No data grounding. No output validation. No cost monitoring. No handling for when the model does not know the answer.
We build the full integration, not just the API call.
According to McKinsey's State of AI 2025 report, 71% of organizations now regularly use generative AI in at least one business function, up from 65% the year before. For most of these teams, the bottleneck is not access to the OpenAI API but the engineering depth required to connect it reliably to production data and workflows.
RaftLabs has shipped 20+ AI products in 24 months, part of 100+ products since 2015 for clients including Vodafone, T-Mobile, Aldi, Nike, Cisco, and Lockheed Martin, rated 4.9/5 on Clutch. A conversational AI we built for automated research interviews delivers usable insights within 48 hours of interview completion. An AI document processing pipeline handled 20,000+ transactions in a single day with manual errors eliminated. The team that scopes your integration is the team that ships it, with no offshore handoff after the contract is signed. We scope the work, lock the cost in writing before any development starts, and scope compliance requirements (GDPR, HIPAA, SOC 2) in week 1 rather than retrofitting them before launch. We have shipped HIPAA-compliant AI systems for US healthcare clients and GDPR-compliant products for European markets.
Everything on the left should already be true for your product. Even one thing on the right, and the consumer ChatGPT product or a quick prototype is the smarter first step.
An existing web app, mobile app, or internal tool you want to add AI capabilities to.
Data the model needs to ground its answers on: documents, a knowledge base, product records, or a database.
You need the integration to work reliably in production, with output validation and cost monitoring, not just a demo.
What we build
The application, the user problem you're solving, and the data you want the model to work with. We'll scope the integration and give you a fixed cost.
How it works
Every project follows the same four phases. Scope is locked and price is fixed before development starts.
We map the integration requirements: which models fit the task, what data the model needs access to, and how outputs connect to your product or workflow. You leave week 1 with a written scope and a fixed-price quote.
RAG pipeline design, prompt architecture, function call schemas, and data flow before a line of production code is written. Design decisions made here cost a fraction of the same decisions made mid-build.
Working integration at a staging URL by the end of sprint one. Bi-weekly demos. Accuracy benchmarking against labelled test sets for extraction and classification tasks. QA runs in parallel with every sprint.
Production deployment with cost monitoring, latency tracking, and error rate dashboards active on launch day. 8 weeks of post-launch support included in every project.
What clients say
Three-year average engagement. Founders and operators describing the work in their own words. No marketing varnish.

I found RaftLabs to be the perfect partner for Perceptional, with their expertise in helping startup founders build MVPs, a free consultation, a prototype that matched my vision, and their unwavering support.
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Integration development is a fixed cost from $20,000, modelled at your expected monthly volume before you commit. Tell us the application, the data, and the outcome, and we'll scope it.
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Read moreChatGPT is OpenAI's consumer product, a chat interface anyone can use at chat.openai.com. The OpenAI API is the programmatic interface that lets you integrate GPT-4o and other models into your own applications. When businesses say they want to 'integrate ChatGPT', they mean they want OpenAI API integration, the same underlying models, but integrated into their specific product, workflow, or data environment with custom prompts, data connections, and output formats.
GPT-4o: the flagship model, best for complex reasoning, analysis, and nuanced tasks. Higher cost per token. GPT-4o mini: significantly cheaper, surprisingly capable on focused tasks, the right choice for high-volume production use cases where cost compounds. GPT-4 Turbo: large context window (128K tokens), good for long document analysis. o1 and o3 reasoning models: for tasks requiring multi-step logical reasoning. We recommend the right model for each specific task, not the most expensive one as default.
Retrieval-augmented generation (RAG). Your documents, product knowledge, or database content are indexed into a vector store (Pinecone, Weaviate, or pgvector in PostgreSQL). When a user asks a question, we retrieve the relevant content from your index and include it in the model's context. The model answers based on your specific data rather than general training knowledge. This prevents hallucination on company-specific topics and grounds responses in accurate, current information.
OpenAI function calling lets the model trigger specific actions or return structured data rather than free-form text. Use cases: returning structured JSON for your application to process (extract specific fields from a user message), triggering actions in your system (creating a support ticket, looking up an order, updating a CRM record), and building AI agents that use tools to accomplish multi-step tasks. Function calling is how you make AI integrations that do things, not just say things.
Hallucination prevention strategy: RAG grounds responses in your actual data. System prompts constrain the model to answer only from provided context. Confidence handling, prompting the model to say when it does not know rather than guess. Output validation for structured outputs (checking that returned JSON matches expected schema). Human-in-the-loop review for high-stakes outputs. Monitoring and logging for hallucination patterns identified in production. No approach eliminates hallucination entirely, the goal is making it detectable and handleable.
Integration development costs $20,000-$80,000 depending on complexity, a single AI feature in an existing application runs less; a full AI product with RAG, function calling, and multiple AI workflows runs more. Ongoing OpenAI API costs scale with usage, GPT-4o at $5/1M input tokens and $15/1M output tokens, GPT-4o mini at $0.15/$0.60 per 1M tokens. We model the expected monthly API cost at your estimated volume before committing to the build.
Work with us
We scope ChatGPT Integration Services in 30 minutes. You walk away with a clear cost, timeline, and approach. No commitment required.