OpenAI Development Services for Teams Building With ChatGPT
We help engineering teams integrate the OpenAI API and business teams adopt ChatGPT Enterprise, from Codex rollouts to Responses API development.
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When your team has ChatGPT but not a strategy
Most companies activate ChatGPT seats and stop at basic chat. The Responses API goes unintegrated, Codex never reaches the engineering team, and GPT-5.4’s tool use and computer use capabilities stay untouched. OpenAI now covers text, voice, image, and agentic automation across a platform most teams are using at 10% capacity. Curotec helps companies close that gap across their product and their people.
Our capabilities include:
- Production AI development on the OpenAI platform
- Enterprise ChatGPT deployment and team enablement
- Agentic coding workflows for development teams
- Voice and multimodal AI integration
- Agentic workflow design with tool use and computer use
- Model selection and cost optimization across OpenAI model tiers
Who we support
Curotec works with companies at every stage of OpenAI adoption — whether you’re integrating the Responses API into a product for the first time, deploying ChatGPT Enterprise across a business team, or building agentic workflows that go beyond what a basic implementation supports.
Engineering Teams Building With OpenAI
Your product needs AI features but the team hasn't worked with the OpenAI platform before. Model selection, Responses API architecture, and cost management across GPT-5.4 and o-series tiers have real performance and budget implications. You need engineers who have shipped production OpenAI integrations and can architect the right solution without learning on your budget.
Organizations Adopting ChatGPT Enterprise
Your company has ChatGPT seats but adoption is uneven and nobody uses it beyond basic chat. Workspace connectors to Google Drive, SharePoint, and GitHub aren't configured and custom GPTs haven't been built. You need a partner who can turn a subscription into a productivity system your team actually uses.
Companies Building Agentic Workflows
Your team wants OpenAI handling multi-step tasks autonomously across documents, interfaces, and connected systems. That requires Responses API architecture, computer use configuration, and workflow design most partners haven't shipped in production. You need engineers who have built these systems and understand where they break.
Ways to engage
We offer a wide range of engagement models to meet our clients’ needs. From hourly consultation to fully managed solutions, our engagement models are designed to be flexible and customizable.
Staff Augmentation
Get access to on-demand product and engineering team talent that gives your company the flexibility to scale up and down as business needs ebb and flow.
Retainer Services
Retainers are perfect for companies that have a fully built product in maintenance mode. We'll give you peace of mind by keeping your software running, secure, and up to date.
Project Engagement
Project-based contracts that can range from small-scale audit and strategy sessions to more intricate replatforming or build from scratch initiatives.
We'll spec out a custom engagement model for you
Invested in creating success and defining new standards
Why choose Curotec for OpenAI and ChatGPT development?
Curotec builds production software on the OpenAI platform across SaaS, healthcare, and enterprise — not demos or proofs of concept. Our engineers work across the full OpenAI stack: Responses API, tool use, computer use, Codex, Realtime API, and model tier selection across GPT-5.4 and o-series. When your team needs OpenAI wired into a real product or a real business process, we’ve already solved the problems you’re about to run into.
1
Extraordinary people, exceptional outcomes
Our outstanding team represents our greatest asset. With business acumen, we translate objectives into solutions. Intellectual agility drives efficient software development problem-solving. Superior communication ensures seamless teamwork integration.
2
Deep technical expertise
We don’t claim to be experts in every framework and language. Instead, we focus on the tech ecosystems in which we excel, selecting engagements that align with our competencies for optimal results. Moreover, we offer pre-developed components and scaffolding to save you time and money.
3
Balancing innovation with practicality
We stay ahead of industry trends and innovations, avoiding the hype of every new technology fad. Focusing on innovations with real commercial potential, we guide you through the ever-changing tech landscape, helping you embrace proven technologies and cutting-edge advancements.
4
Flexibility in our approach
We offer a range of flexible working arrangements to meet your specific needs. Whether you prefer our end-to-end project delivery, embedding our experts within your teams, or consulting and retainer options, we have a solution designed to suit you.
OpenAI services and capabilities we deliver
Responses API & Agents
ChatGPT Enterprise
Codex for Engineering Teams
Realtime API for Voice
Image & Video Generation
Reasoning Models
What we deploy across the OpenAI ecosystem
GPT and Reasoning Models
Our engineers match OpenAI model tiers to your workload’s reasoning requirements, latency constraints, and per-token cost targets.
- GPT-5.4 – OpenAI’s flagship model with a 1M token context window, tool use, computer use, and built-in compaction for long-running agent workflows
- GPT-5.4 mini – GPT-5.4-class capability at lower cost and latency for high-volume workloads requiring tool use and built-in computer use at scale
- GPT-5.4 nano – Fastest and most affordable GPT-5.4 model for simple, high-volume tasks where speed and cost matter more than maximum reasoning capability
- o3 – OpenAI’s advanced reasoning model for complex multi-step problems in financial modeling, scientific analysis, and technical planning that GPT-5.4 handles inconsistently
- o3-pro – Extended compute reasoning for the most demanding analytical tasks where accuracy on complex problems justifies higher per-token cost and longer response times
- GPT-5.3 Instant – Fast, conversational model optimized for everyday interactions, customer-facing chat applications, and high-throughput use cases requiring natural dialogue
Responses API and Developer Tools
Curotec builds OpenAI integrations on the Responses API with tool use, computer use, and web search ahead of the Assistants API sunset.
- Responses API – OpenAI’s current standard for building agents with tool use, computer use, web search, file handling, and a 1M token context window in a single endpoint
- Chat Completions API – Stable OpenAI endpoint for text generation, function calling, and structured output across GPT and o-series models with broad SDK support
- Agents SDK – OpenAI’s Python framework for building multi-agent systems with handoffs, guardrails, tracing, and built-in support for tool use and MCP integration
- Python SDK – Official OpenAI Python client for Responses API, Chat Completions, fine-tuning, and batch processing in backend services and agentic workflows
- Node.js SDK – Official OpenAI JavaScript client for API integration in Node.js backends, serverless functions, and frontend applications requiring direct model access
- Batch API – Asynchronous processing at 50% token discount for high-volume workloads where response latency isn’t a constraint and cost efficiency is the priority
Agentic and Automation Tools
We configure OpenAI’s agentic tools to automate development workflows and computer-driven business processes.
- Codex – OpenAI’s agentic coding tool for autonomous debugging, repository navigation, code review, and pull request generation inside your existing development workflow
- Computer Use – GPT-5.4 capability for navigating browser interfaces and desktop UIs to complete tasks in systems that lack APIs or require human-style interaction patterns
- Agent Builder – OpenAI’s visual canvas for building and deploying agents without code, connecting tools and workflows through a no-code interface for non-developer teams
- ChatKit – OpenAI’s framework for building customizable frontend agentic experiences with pre-built UI components for chat, voice, and tool use interactions
- Web Search Tool – Built-in Responses API tool giving agents real-time web access for research, fact-checking, competitive intelligence, and current data retrieval
- Code Interpreter – Hosted execution environment for running Python code, processing files, generating charts, and performing data analysis inside agent workflows
ChatGPT Products
Our engineers deploy ChatGPT Team and Enterprise with workspace connectors, custom GPTs, and admin controls for your organization.
- ChatGPT Enterprise – Managed ChatGPT deployment with SSO, SOC 2 compliance, admin controls, usage analytics, data residency, and priority access to the latest models
- ChatGPT Team – Collaborative ChatGPT workspace for teams of 5 to 150 with shared custom GPTs, Codex access, and self-serve seat management
- Custom GPTs – Organization-specific ChatGPT configurations with custom instructions, connected tools, uploaded knowledge bases, and defined output formats for your team’s workflows
- Workspace Connectors – Native integrations connecting ChatGPT Enterprise to Google Drive, Microsoft SharePoint, OneDrive, and GitHub for internal knowledge access and document synthesis
- ChatGPT for Excel – OpenAI’s Microsoft Excel integration for AI-assisted data analysis, formula generation, and automated reporting directly inside spreadsheets
- Prism – ChatGPT Enterprise workspace for structured scientific and business research with collaborative reasoning, advanced model access, and high-density report generation
Voice, Image, and Video
Curotec wires OpenAI’s multimodal APIs into your product so voice, image generation, and video run without separate third-party services.
- Realtime API – Low-latency voice API with GPT-4o audio for building natural voice interactions, customer support agents, and hands-free field service applications
- GPT Image 1.5 – OpenAI’s image generation model for creating product visuals, ad creative, and design assets programmatically via API or Batch API for high-volume output
- Sora 2 – OpenAI’s video generation model for B2B use cases including ad campaign prototyping, product demos, virtual walkthroughs, and training content at scale
- Whisper – OpenAI’s speech-to-text model for accurate audio transcription and translation across languages, used in meeting summaries, voice logging, and accessibility features
- GPT-4o Audio – Multimodal model supporting audio input and output for applications requiring voice understanding alongside text and image processing in a single API call
- DALL-E – Earlier OpenAI image generation model still available for applications requiring established integration patterns before migrating to the GPT Image API
Deployment and Infrastructure
We deploy OpenAI via Azure or direct API with fine-tuning, vector store configuration, and compliance controls matched to your requirements.
- Azure OpenAI Service – Managed OpenAI deployment within Microsoft Azure with VPC isolation, private endpoints, data residency, and Azure-native security and compliance controls
- Fine-Tuning API – Custom model training on your organization’s data to improve performance on domain-specific tasks, terminology, and output formats beyond prompt engineering
- Vector Stores – OpenAI’s managed vector storage for file search and retrieval-augmented generation, giving agents access to large document collections without external vector databases
- File Search Tool – Responses API tool for semantic search across uploaded documents, knowledge bases, and internal content repositories inside agent and ChatGPT workflows
- Laravel Integration – OpenAI API wired into Laravel backends using the PHP community SDK with prompt management, queue-backed async inference, and cost tracking for high-throughput applications
- LangChain – Open-source orchestration framework for chaining OpenAI API calls with retrieval, memory, and tool use in complex multi-step agentic applications
FAQs about our OpenAI and ChatGPT development services
How do you scope an OpenAI engagement?
We audit your existing API usage, ChatGPT adoption, and integrations first, then identify the highest-value gaps. Most engagements start with one high-impact integration, not a full platform overhaul.
Can you work with our existing OpenAI setup?
Yes. We review your current implementation, identify what’s outdated or underperforming, and improve it without a rebuild. If you’re still on the Assistants API, we migrate you to the Responses API with minimal disruption to what’s already working.
How do you handle model costs at scale?
We configure prompt caching, Batch API routing, and model tier selection so the right model handles each request at the right cost. Most teams overspend by defaulting to the most capable model for every task.
Which OpenAI model should we use?
GPT-5.4 for most production workloads — fast, capable, and cost-effective. o3 for complex multi-step reasoning where GPT-5.4 produces inconsistent results, like financial modeling or technical analysis.
Can you fine-tune GPT on our own data?
Yes. Fine-tuning improves performance on domain-specific terminology and output formats that prompt engineering can’t reliably deliver. We scope, train, and evaluate fine-tuned models against your baseline before deployment.
How do your engineers work with our team?
We work in your repo and your systems, document every integration decision, and train your team on what we build. Whether it’s a Responses API integration or a ChatGPT Enterprise rollout, your team owns it when we’re done.
Ready to have a conversation?
We’re here to discuss how we can partner, sharing our knowledge and experience for your product development needs. Get started driving your business forward.
