Build Future-Ready Applications Powered by GPT-4, DALL·E, Whisper & More
At eWebster, we help startups and enterprises build AI-driven applications that think, speak, create, and learn—powered by OpenAI’s industry-leading models like GPT-4, DALL·E 3, Whisper, and Function Calling APIs.
Whether you’re building a chat assistant, AI content engine, voice-enabled app, or custom AI Copilot, we provide full-cycle OpenAI integration services to bring your vision to life.
Our AI App Development Services Using OpenAI
GPT-4 Integration for Smart Applications
We integrate GPT-4 to build AI-powered apps that can converse, generate text, summarize content, translate, and even reason with context. Perfect for SaaS tools, HR apps, legal tech, eCommerce assistants, and more.
DALL·E 3 for Image Generation
Use DALL·E 3 APIs to let your app generate stunning images from text prompts—great for design apps, creative platforms, marketing tools, and avatar creation systems.
Whisper for Speech-to-Text
Enable voice input in your app using Whisper, OpenAI’s speech recognition model. Ideal for accessibility, voice note apps, call transcription, and healthcare intake.
GPT Function Calling for Tool Use
We create apps that go beyond chat—GPT can call external APIs, run calculations, retrieve structured data, and connect with your internal systems via the Function Calling framework.
Embedding + RAG (Retrieval-Augmented Generation)
Enable your app to answer based on your own documents (PDFs, Notion, websites, emails, etc.) using Embeddings, Vector Databases (e.g., Pinecone, Qdrant), and RAG pipelines.
Multi-Agent AI Systems
We architect multi-agent systems where one GPT agent handles search, another handles reasoning, and a third performs user interaction—ideal for AI copilots or automated workflows.
Multilingual AI App Development
Leverage OpenAI’s multilingual capabilities to build apps that understand and respond in 50+ languages with near-human fluency.
OpenAI + Enterprise Security
We wrap OpenAI APIs within secure, privacy-first frameworks compliant with SOC 2, HIPAA, and GDPR—critical for healthcare, legal, or finance applications.
Our Tech Stack
Front-End
React
Next.js
Flutter
Vue.js
SwiftUI
Backend
Node.js
Python (FastAPI)
Flask
Django
Image AI
DALL·E 3
Midjourney
Stability AI
Speech AI
ElevenLabs
OpenAI Whisper
Play.ht
Video Gen
Runway
Pika
Sora (coming soon)
Vector DBs
Pinecone
Qdrant
Weaviate
Redis
Deployment
AWS Lambda
Azure
Cloudflare Workers
Vercel
LLMs
OpenAI GPT-4
Claude
GPT-3.5-turbo
Gemini
Security
OAuth 2.0
JWT
Encryption at rest in transit
Industries We Serve with OpenAI-Powered Apps
We consult across industries with AI use cases tailored to each domain.
Healthcare
Symptom checkers, voice dictation, document Q&A
Marketing
Content writers, campaign idea generators, AI ad creators
Finance & Insurance
Report generators, claim chatbots, policy analyzers
eCommerce
AI shopping assistants, product describers, review bots
Legal
AI paralegals, contract analysis, clause extractors
EdTech
Virtual tutors, content generation, lesson planners
Travel
AI itinerary planners, multilingual support bots
HR & Recruitment
Resume rankers, job description writers, internal chatbots
Serving Clients Locally & Globally
We provide web development services across the USA, with a strong presence in
Why Choose eWebster for AI App Development Using OpenAI?
Certified AI & LLM Engineers
Our team consists of AI/ML experts with hands-on experience building real-world GPT applications at scale.
Tailored, Modular Architectures
We don’t just drop GPT into your app—we design intelligent workflows, memory systems, and human-AI loops specific to your use case.
Continuous Learning & Optimization
We implement feedback loops, user scoring, and retraining mechanisms to help your app get smarter over time.
Data Privacy & Governance
We isolate user data, prevent model hallucination leakage, and apply red teaming to test for AI risks.
AI UX Expertise
We design conversation flows, prompt chains, fallback strategies, and interfaces that feel natural, fast, and human-friendly.
Recent AI Projects Using OpenAI
Healthcare Startup
EdTech Platform
Travel Aggregator
Get Started With AI App Development Today
Bring the power of OpenAI into your application—build AI copilots, voice interfaces, intelligent search, and smart workflows with eWebster’s full-service AI team.