OpenAI
The most widely deployed AI infrastructure for production AI products.
OpenAI's GPT-5 family, Responses API, and function-calling capabilities are the backbone of countless production AI applications. With the broadest developer ecosystem, most extensive documentation, and continuous model improvements — including GPT-5.4's native computer use and 1M-token context — OpenAI is the pragmatic choice for teams building at speed.
What makes OpenAI stand out
GPT-5.4 Frontier Model
State-of-the-art reasoning, instruction following, and multimodal capabilities with five configurable reasoning efforts (none / low / medium / high / xhigh). GPT-5.4 unifies the coding strength of the Codex series with general-purpose intelligence in a single model — plus a 1M-token context window for large codebases and long agent trajectories.
Native Computer Use
GPT-5.4 is the first mainline OpenAI model with built-in computer use — it sees screens, moves cursors, clicks, types, and interacts with desktop applications in a build-run-verify-fix loop. At 75% on OSWorld, it's the first model to exceed human-expert performance on desktop automation benchmarks.
Tool Search & Agentic Reliability
Tool search lets GPT-5.4 handle large tool ecosystems without flooding the context — it retrieves only the tool definitions it needs, reducing token usage by ~47% on MCP Atlas benchmarks. Combined with native compaction, it supports much longer agent trajectories than previous models.
Fine-tuning & Assistants
Fine-tune GPT models on proprietary data for domain-specific accuracy. The Responses API provides built-in thread management, file retrieval, code interpreter, and tool use — dramatically reducing the infrastructure required to build persistent AI assistants and long-running agents.
What we build with OpenAI
Intelligent APIs
Build AI-powered endpoints that classify, extract, summarise, or generate content — integrating LLM intelligence into your existing product infrastructure with structured outputs and context-free grammars for reliable formatting.
RAG Applications
Combine GPT-5.4 with your internal knowledge base using retrieval-augmented generation — enabling accurate, citation-backed answers to complex questions over millions of tokens of source material.
Agentic Coding
Automate code generation, review, refactors, and migrations with GPT-5.4 in Codex — capable of sustained work in large repositories across long sessions, with native Windows agentic coding support.
Structured Data Extraction
Extract structured data from unstructured text at scale — parsing emails, PDFs, and forms into typed, validated objects ready for downstream processing, with context-free grammar support for strict schema enforcement.
Ready to put OpenAI to work?
We'll help you identify where OpenAI can create the most impact — and build it the right way, the first time.