OpenAI Integration
GPT models integrated with real guardrails around cost, reliability, and failure handling.
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OpenAI integration means wiring GPT models into a product or workflow through OpenAI's API — chat completions, function calling, structured outputs, or the Assistants API. DuCodes handles this integration work end to end, including the parts that matter after launch: cost monitoring, rate limiting, and fallback behavior when the API is slow or unavailable.
Calling the OpenAI API is the easy part; building something reliable around it is where most of the actual engineering work is. That means handling rate limits and timeouts gracefully, monitoring token costs before they surprise you, structuring outputs so your application can actually use them, and deciding what happens when the API is slow, down, or returns something unexpected.
We integrate OpenAI's models into existing products and new builds alike — chat features, document processing, structured data extraction via function calling — treating the API as one component of a larger system rather than the whole solution.
Why work with DuCodes on this
Cost is designed in, not discovered later
Token usage monitoring and sensible model selection (not defaulting to the most expensive model for every call) are part of the build.
Handles API failures gracefully
Timeouts, rate limits, and outages get a defined fallback behavior instead of surfacing as a broken feature.
Structured outputs you can actually use
Function calling and structured output modes get set up so responses are usable directly in your application, not just parsed by hope.
Model-agnostic where it matters
We'll flag where switching to a different model (or a different provider entirely) would genuinely serve you better, rather than assuming OpenAI is always the right choice.
How we work
Scope the use case
What exactly the integration needs to do, and the acceptable cost and latency for it.
Design the integration
Function calling schema, prompt structure, and where this fits in your existing backend.
Build with guardrails
Rate limiting, retries, timeout handling, and cost monitoring built in from the start.
Test against real inputs
Realistic and edge-case inputs, not just the happy path, before considering it production-ready.
Monitor after launch
Usage and cost tracking so you see how the integration performs against real traffic.
Technology we use
Frequently asked questions
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