
GPT API Development That Ships: Architect for Tools, State, and Scale
GPT API development is software architecture: function calling, Assistants API, state, and guardrails. Learn patterns that ship reliable AI features at scale.

GPT API development is software architecture: function calling, Assistants API, state, and guardrails. Learn patterns that ship reliable AI features at scale.

Use this pragmatic framework to decide when to fine-tune LLM for business versus doubling down on prompts, RAG, and tooling to maximize ROI.