Demonstrates how to use ChatKit (part of AgentKit) to build agents easily in your own applications.
Demonstrates how to use the Apps SDK to build MCP servers and apps for ChatGPT.
Docs for the Agentic Commerce Protocol
Explains how to understand and manage rate limits
Explains how to use web search with the Responses API.
Shows how to iterate on prompts using optimization workflows. — evals, optimization
Quickstart for creating and running evaluations. — evals
The OpenAI gpt-oss models are introducing a lot of new concepts to the open-model ecosystem and getting them to perform as expected might take some time. This g
LM Studio is a performant and friendly desktop application for running large language models (LLMs) on local hardware. This guide will walk you through how to s
Authored by: Edward Beeching, Quentin Gallouédec, and Lewis Tunstall Large reasoning models like OpenAI o3 generate a chain-of-thought to improve the accuracy a
Want to get OpenAI gpt-oss running on your own hardware? This guide will walk you through how to use Ollama to set up gpt-oss-20b or gpt-oss-120b locally, to ch
Best practices for prompting reasoning models — reasoning, planning, tool use, structured outputs.
Overview of reasoning models and how to prompt them — reasoning, planning, tool use, structured outputs.
OpenAI models page. - models
Function calling guide. function calling, tool calling
Shows how to run computations and analyze data via the code interpreter.
Explains how MCP enables tool portability and composition across apps. — Model Customization Platform (MCP)
Describes how to reduce costs with flex processing
Explains how to persist context for multi-turn conversations. — Responses API, tools, function calling
Describes indexing and querying files for grounded responses. — file search, retrieval