OpenAI API Consultant & Developer
Production OpenAI integrations with cost guards, structured outputs, evals, and the operational discipline most teams skip.
What OpenAI API unlocks for your team
- GPT-4o / 4o-mini / o-series in your product with cost monitoring
- Structured outputs with strict schema enforcement
- Realtime API for voice agents
- Function calling / tools for agentic workflows
- Embeddings for search and RAG
Workflows we build most often
- RAG with structured outputs. Retrieval → prompt → strict-schema JSON → validated → returned. No string parsing.
- Agentic tool-use. GPT-4o with function calling for multi-step workflows like CV screening, lead enrichment, document processing.
- Voice agent. Realtime API + custom turn-taking + tool-calling for inbound/outbound calls.
APIs & tooling
- OpenAI Chat Completions
- OpenAI Responses API
- OpenAI Realtime
- Embeddings
- Files API
Pricing & timeline
OpenAI billed per token. Engineering build from $7K USD; ongoing optimization included.
First production OpenAI feature in 2–3 weeks.
OpenAI API case studies
- AgentFlow - Visual AI Agent Builder — A no-code platform for building AI-powered automation agents through an intuitive drag-and-drop canvas interface.
- ProLeads — AI-powered B2B lead generation platform that helps sales teams find verified decision-makers using natural language search queries.
- AgenticAI - AI-Powered CV Screening Platform — An intelligent recruitment platform that uses AI to analyze and rank CVs against job requirements, helping companies find perfect candidates in minutes instead of weeks.
Frequently asked questions about OpenAI API
- How do you keep OpenAI costs under control?
- Per-tenant budgets, model-tier routing (4o-mini for cheap, 4o for hard, o3-mini for reasoning), aggressive caching on retrieval, and a daily cost dashboard with anomaly alerts.
- Should I use OpenAI or Claude or Gemini?
- Depends on the task. OpenAI for tool-use and Realtime voice, Claude for long-context reasoning and code, Gemini for cost on simple bulk tasks. We benchmark on your eval set before locking in.
- What about prompt caching and Batch API?
- Yes — Batch API for any non-time-sensitive bulk job (50% cheaper), prompt caching where the prefix is stable. We design the prompt structure to maximize cache hit rate.